I am having trouble solving this problem
Determine whether the given conditons justify testing a claim about a population mean. The sample size is n = 21, standard deviation is 6.10, and the original population is normally distributed.
I was not sure if I needed to start off by finding a null hypothesis. The formula I was going to use is
z= x - mean (x)/6.10/square root of 21
Please tell me what to do.
Determine whether the given conditons justify testing a claim about a population mean. The sample size is n = 21, standard deviation is 6.10, and the original population is normally distributed.
I was not sure if I needed to start off by finding a null hypothesis. The formula I was going to use is
z= x - mean (x)/6.10/square root of 21
Please tell me what to do.