Complete the mcq:
Q1. The mean age of bus drivers in Chicago is 54.5 years. If a hypothesis test is performed, how should you interpret a decision that fail to rejects the null hypothesis?
A There is sufficient evidence to reject the claim mean = 54.5
B There is not sufficient to reject the claim mean = 54.5
C There is sufficient evidence to support the claim mean = 54.5
D There is not sufficient evidence to support the claim mean = 54.5
Q2. The dean of a major university claims that the mean times for students to earn a Bachelor's degree is at most 5 years. If a hypothesis test is performed, how should you interpret a decision that rejects the null hypothesis?
A There is sufficient evidence to reject the claim population mean is less than or equal to 5
B There is not sufficient evidence to reject the claim population mean is less than or equal to 5
C There is sufficient evidence to support the claim population mean is less than or equal to 5
D There is not sufficient evidence to support the claim population mean is less than or equal to 5
Q3. Suppose you want to test the claim that the two means from two populations are equal. Two samples are randomly selected from each population. The sample statistics are given below. If a hypothesis test is performed, how should you interpret a decision that rejects the null hypothesis? Use alpha=0.05.