# basics

1. ### Measures of dispersion

Hi All, Does Measures of dispersion using variance shows how much average distance of the points from the mean ? or can we get the exact/ correct mean using measures of dispersion ? If the variability value is vey low, then we can conclude like our central tendency value of mean is correct or...
2. ### Variance measurement using median and mode ?

Hello All, Is there any method of measuring variance using median, mode instead of mean like below formula approach? Because I saw mean absolute deviation using mean, mode and median in this post The Variance: Measuring Dispersion - Probabilistic World Likewise, I am just curious to know...
3. ### Basic SPSS analysis- Complete newbie

I just wondered if someone would be able to advice me for my SPSS analysis please. I have imputed all my data and now I am a bit stuck with the analysis. I am wanting to investigate the effect of brand attachment on affectionate loyalty and behavioural loyalty. My hypothesis is as follows...
4. ### What impact does number of trials (as opposed to sample size) have on power of test?

Hi, I am working through some basic statistics courses online and am confused about sample size. I will try to illustrate my question with a concrete example: Suppose I wanted to know the average weight of fish in a river, and I knew that I only had time to collect 100 fish. Is there any...
5. ### I need help on R basics; particularly list manipulation

First time poster - Thanks in advance for your help! I am reading in over a 1000 data input entries from a ".csv" file that look like the following list: can't drive after midnight and before 5am cannot drive from 12:30am-5am Be off the road by 12:30am I don't know 12:30 curfew curfew-12:30...