From a normally distributed population, a simple random sample of size 30 is taken. the mean of the sample is 144 and the standard deviation of the sample is 12. construct a 90% confidence interval for the population mean. a. (139.7, 148.3) b. (140.4, 147.6) c. (142.4, 145.6) d. (143.3, 144.7)

From a normally distributed population, a simple random sample of size 30 is taken. The mean of the sample is 144 and the standard deviation of the sample is 12.

Construct a 90% confidence interval for the population mean.

Solution: B. (140.4, 147.6)

c) yes, because of asa or aas

no association

step-by-step explanation:

if you have eyes and you can use them efficiently you can see that it just looks like random dots like do a line of best fit and like they're so spread out it's such a weak association you might as well consider it nonexistent