Question

Consider the following hypotheses:

H₀: μ = 6,200
H_A: μ ≠ 6,200

The population is normally distributed with a population standard deviation of 700. 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.	x̅ = 6280; n = 145
b.	x̅ = 6280; n = 325
c.	x̅ = 5960; n = 40
d.	x̅ = 6040; n = 40

Answer 1