The you do help you to select the under men high level Lenora

Cao thẩm mỹ tính

Đầu tiên chúng ta nhìn thấy ở gạch men...

Lenora-Gạch men cao cấp nhập khẩu Ấn Độ]]>

Thank you in advance!]]>

Indepentent-samples t-test or paired?]]>

Any excel function to calculate the product of probability density and number of outcomes?]]>

The t distribution and t testing REQUIRE that σ be estimated, if σ is known and used, the t distribution is inappropriate and incorrect. The t distribution includes an s correction.

The t distribution is appropriate when n <...

t vs Z, distributions and testing]]>

Thanks;

joe b.]]>

I am a masters-level social work student, and I am trying to conduct a bit of statistical analysis on my own for a paper I am writing. The data come from a governmental publication on juvenile court statistics. I am interested in determining the significance of race across a number of court proceedings, and I am using excel for mac. The first contingency table I set up has to do with cases that petitioned (formally processed) vs not, and my race variable has 5 levels (see...

Chi-Square and 0]]>

I wanted to run a TWO-way ANOVA but unfortunately, my variables are non-parametric. I have tried transforming the data but that did not work. I was wondering what the next step was? I was thinking of conducting two separate tests, a Friedman's test as a non-parametric alternative to examine within-group effects and a Kruskal-Wallis test to examine between-group effects. I imagine this increases my chances of error but i cannot think/find another solution. Any help would be...

Non-parametric Two-way ANOVA]]>

So what i do is i write recode logmag (0/2.772589=1)(2.833213/5.010635=2),gen(logmag_new)

Then what it does it that it makes 3 columns and leaves 5.010635 for it self does not change it to 2. Can anyone help me, I need to figure this out but the book and the internet does not help me with this :/]]>

I’m trying to do some analysis of the extent to which private schools are located in poor rural districts in Uganda.

so far, I have done a poison regression with number of private schools on the left hand side and %district population living in poverty, % district population living in rural area, district school aged population and no of government schools on the right hand side.

ive chosen poison because the left hand variable is count data. Now I’m wondering would I be better to...

Poison regression or transform data]]>

I was looking for some suggestions. I just got rejected a scientific study mainly because the statistical analysis that I performed I collected data through motion analysis from all the goals for the 2018/2019 season in the English Premier League. I analysed the movements using a movement classification system called: “the Bloomfield Movement Classification”. This mainly includes movements (sprint, decelerations, turns, etc), intensities of the movements (high, medium, low).

I...

Football movements study. CI rejected by peer-reviewers. Chi-square?]]>

Following situation:

What I essentially want to do is to figure out social media best practices in terms of posting time, posting frequency, post media type, and post category for rolling stock maintenance providers in Europe. I do this by measuring the engagement rate (the sum of likes, reactions, comments, shares on a single post...

Calculating Variances for Analysis of Best Practices?]]>

Hopefully, somebody can help me. I've been struggling for two weeks now on how to analyze the data for my thesis.

The design of the original study is as follows: 38 participants filled in multiple questionnaires and did a memory test in the evening. During the night, they were awoken nine times and asked to report everything that was going through their mind before they woke, and were asked a few other questions after this. After the final awakening in the morning, they did the...

Multilevel analysis: Nesting variables to participants and comparing groups: what test to use?]]>

Hopefully, somebody can help me. I've been struggling for two weeks now on how to analyze the data for my thesis.

The design of the original study is as follows: 38 participants filled in multiple questionnaires and did a memory test in the evening. After this, they went to sleep. During the night, they were awoken nine times and asked to report everything that was going through their mind before they woke, and a few other questions. After the final awakening in the morning, they did...

Two questions: MANOVA or multiple t-tests? & Multilevel analysis: what test to use?]]>

I have a question about conditional logit analysis, in particular analysis based on a McFadden-type choice model. I am using a model of firm relocation destination county choice using a 19th century panel dataset, with the main explanatory variables being county-specific variables. Since this is the 19th century, the choice of county alternative destinations is different for firms relocating in different years since some counties weren't in existence in some years and some were...

Conditional logit (with a different number of alternatives for each case)?]]>

We would like to match the cases (complication) with controls (no complication). Im thinking 1:3 ratio.

An resume of my database (All patients are in the same...

Case Control Matching in SPSS]]>

I'm struggling with applying the Bonferroni correction in my analysis, more specifically figuring out the number of comparisons I have to control for.

I have several statements which participants (divided into three independent groups) rated on a ordinal scale. I'm interested if there are differences for each statement between the groups. For that purpose, I performed a Kruskal-Wallis H test with Dunn's post-hoc test and a corrected alpha level of 0.05/3 for each statement (as I do...

Bonferroni correction]]>

I cannot see any difference between the Excel files except that my name appears under "Last saved by:" in the...

Importing .xlsx files]]>

Are these question the same(except the parameters of course) :

First - What's the number of trials needed until having at least 1 defective product, with a probability >= 85%, with pDef = 0.03.

Second - What's the number of trails needed until having at least 5 defective product, with a probability > 90% and pDef = 0.10

I understand the second is Negative binom, and its the first N that its Survival function of k=5 will result in over 90%.

Is the first one also Negative binomial and...

Is these Negative binomial distributions?]]>

Please refer to the attached Table:

Of course I have other people in my dataset aswell and because of that I would drop a university and a degree type to avoid multicollinearity. My question is that since Harvard was attended twice in BS and MS is it ok to have a 2 there...

Dummy Variable for repeated categories for the same observation]]>

So far I've just used a simple bivariate model. Candidate ballot position (1st to 42nd) is the independent variable and number of votes as a dependent variable. Is it acceptable to use an ordinal as the independent variable in this way?

Of course neither variable is normally distributed. For the...

Relationship between name order and votes in an election]]>

I'm comparing image values in a tumour region before and after treatment. I'm trying to see if the value of the pixels is significantly different after treatment. The histogram distributions look like this (for one tumour):

I assumed using the 'two-sample test assuming unequal variances' option in excel would be appropriate here, but it seems overly sensitive - as in, it's saying pretty much almost all of them are statistically significant differences...

two-sample assuming unequal variances - too sensitive?]]>

I would like to apply a repeated measures MANOVA to my dataset, but I have some questions about the relevance of this choice. I have several independent (categorical) and dependent (continues) variables. Each subject corresponds to a single combination of IVs. For each of them, I have several repeated measures, represented by a “time” column. I want to explain my DVs with my IVs (so MANOVA seems appropriate) and consider the effect of several observations at different time (so...

Factorial repeated measures MANOVA]]>

Is there an assumption in CLT that it can be used for positive values only?]]>

mean and standard dev are given.

how to solve this? I'm a bit distracted by the 98%.

thanks

alex]]>

How they did get the training trial [F(5,118) = 57.9, P = 0.0001] and training interaction [F(5,118)=0.642, P = 0.681] in this article link (below)?

I read this article but i got stuck in

Could you please explain how they...

Research article, study design and degree of freedom]]>

I want to have a distribution similar to U-shape beta distribution as the following:

I want to make the distribution as :

Any idea?

Thanks]]>

How do I interpret the epsilon squared values? I understand the range is 0-1, 0 being no difference and 1 being totally different.

How should I treat the values in-between?

these are my results:

Entity χ² df p ε²

Early Epi 12.1 2 0.002...

Interpreting epsilon squared effect size values]]>

I carried out a logistic model on malnutrition status on a whole underfive children and I found that my variable poverty is significant. But, when I rerun models for each sex of children, I noticed that the poverty variable is not significant in any of the two models. How can I explain this ?]]>

Does this COVID life expectancy study use bad statistics?]]>

Calculating and plotting standardized residuals from a model in python]]>

I am running an experiment on aggression. I have a control and an experimental group. I have administered a 29 item 5 point Likert scale to each group. I am interested in their total answers, not each response to the 29 items, just higher values indicating greater aggression. How can I enter this in SPSS and do the chi-square test of independence based on individuals' overall value within each group? Do I create 5 categories such as 1 strongly disagree, 2 disagree, and so forth? Or...

Chi-square test of independence??]]>

I'm trying to solve the following problem:

I have a uniform random variable X with:

1 if 0 < x < 1

0 otherwise

Now, I computed the CDF in the following way:

0 if x <= 0

x if 0 < x < 1

1 if x equal or higher than 1

Then, the problem says, let Y = -2log X; it asks to find the quantile function.

The quantile function is the inverse of CDF. So I wrote:

F(y) =P(Y<= y) = P (-2log X <= y) = P (log x >= -y/2) = P ( x >= e ^ (-y/2) ) = 1 - P ( x <= e ^ (-y/2) ) = 1 - F( e^-(y/2) )...

Quantile function]]>

1. Given an age, I want to be able to predict the response .

2. I want to find out if there is a correlation between the age and response variable. Whether linear or non-linear, I want to find out...

Predicting and correlating categorical variables]]>

I am planning a follow-up experiment to a previous study and have a question about estimating sample size:

For the sake of simplicity, the previous study showed that Condition 1 had more accurate responses (64%) than Condition 2 (41%) and a paired samples t-test was significant (t(12)=3.43,p=0.005, d=0.9, two-tailed).

This finding has recently been challenged because the stimuli are somewhat confounded. My new experiment investigates whether a significant effect will be observed...

Estimating sample size when you know the effect size will be reduced (compared to previous studies)]]>

Confused as to what stats test to use as

> we have 3 independent variables (explanatory as observation)

1) Feeding event: feed, pre-feed, post-feed and control

2) Individual: 8 identified macaques

3) Inside/Outside: where they observed inside or outside

Basically, we want to look at all 3 factors...

Working with zoo closed population - observation study - Which test?]]>

I would like a power of .8. With an effect size...

Power analysis for moderated mediation (and a small research design question)]]>

Since I am brand new to this code I wanted to see if I did it correctly. All the class variables are dummies that can not be non-linear.

Code:

```
proc gampl data=dora.fin plots seed=12345;
CLASS edclo ethd femaled SSDIALLOWED SD
SSIALLOWED WhiteD...
```

Which hypothesis test to use to compare two lab tests?]]>

can you help me create the mathematical model?

Y =]]>

It has been suggested that you use partial regression plots to spot non-linearity. I generated them and was hoping someone could suggest if they suggest non-linearity (and more generally what to look for). I have no theory to build on, I am actually trying to develop a theory...

Non-linear diagnostics]]>

How to interprete two way anova result [closed]]]>

I do apologise for the basic question here, but I am very new to this. I'm trying to report my baseline characteristics for a clinical pilot study we performed. I have three experimental groups and would like to report the following table as you would find in a clinical trial paper, but can't seem to figure out how to do it in Prism?

For the three groups, I want to report the age (mean + SD), the percentage of patients in each group by gender. I also want to report the percentage of...

Basic question: How to analyse baseline characteristics for study (GraphPad Prism)]]>

I have two research questions for my study. The first is whether academic discipline and/or speaker role (instructor or student) correlate with the frequency of use of two linguistic features (two different phrases). For this part, I wanted to perform factorial ANOVA for each linguistic feature since I have two IVs. But the population is not normally distributed so I don't...

Best analysis for 2 IV and pop not normally distr?]]>