Question

9-9 Consider the following hypotheses:

H₀: μ = 5,000
H_A: μ ≠ 5,000

The population is normally distributed with a population standard deviation of 690. Compute the value of the test statistic and the resulting p-value for each of the following sample results. For each sample, determine if you can "reject/do not reject" the null hypothesis at the 10% significance level. (You may find it useful to reference the appropriate table: z table or t table) (Negative values should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places. Round "test statistic" values to 2 decimal places and "p-value" to 4 decimal places.)

		Test statistic	p-value
a.	x−x− = 5,160; n = 115			(Click to select)  Do not reject H0  Reject H0
b.	x−x− = 5,160; n = 215			(Click to select)  Reject H0  Do not reject H0
c.	x−x− = 4,700; n = 42			(Click to select)  Reject H0  Do not reject H0
d.	x−x− = 4,780; n = 42			(Click to select)  Do not reject H0  Reject H0

Answer 1