Question

Calculate the test statistic that would be used to test H_o: μ = 4.9 against H_a:...

Calculate the test statistic that would be used to test H_o: μ = 4.9 against H_a: μ > 4.9 if a random sample of size 31 from a normal distribution has a mean of 5.18 and a standard deviation of 1.167

A. .75

B. 1.33

C. -.24

D. -1.33

E. -.75

F. 7.44

The test statistic for a test of H_o: μ = 55 against H_a: μ ≠ 55 is t* = 1.908. The sample size is 22. How many degrees of freedom does the distribution have?

A. 23

B. It is a z* statistic so there is no degree of freedom

C. 24

D. 21E. 22

F. 20

Math   Statistics-And-Probability   
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