If other factors are held constant,which set of sample characteristics is most likely to reject a null hypothesis stating that μ = 80?
A)M = 85 and small sample variance
B)M = 85 and large sample variance
C)M = 90 and small sample variance
D)M = 90 and large sample variance

Question

Quizplus · Accepted Answer

A larger sample mean (M = 90) would increase the likelihood of rejecting the null hypothesis compared to a smaller mean (M = 85). Additionally, a small sample variance would decrease the variability in the data, making it easier to detect a significant difference from the hypothesized mean of 80. Therefore, option C, with a sample mean of 90 and small sample variance, is the most likely to reject the null hypothesis.

If Other Factors Are Held Constant,which Set of Sample Characteristics