Saved using a random sample of n 50 the sample mean

• Test Prep
• 6
• 94% (32) 30 out of 32 people found this document helpful

This preview shows page 3 - 6 out of 6 pages.

Question 5 (3 points)SavedUsing a random sample of n = 50, the sample mean is 297.6. Suppose that the population standard deviation is σ=12.Is the above statistical evidence sufficient to make the following claim that µ>295:o: μ ≤295?a: μ>295?α = 0.01. p value= 0.063Interpret the results using the p value test.Question 5 options:A) Reject Ho.B)Do not reject Ho.
Question 6 (3 points)SavedUsing a random sample of n = 64, the sample mean is 6.9. Suppose that the population standard deviation is σ = 0.35. The null and alternative hypotheses are below. Calculate the pvalue.Ho: μ≥7: μ<7H?Question 6 options:
Question 7 (3 points)SavedUsing a random sample of n = 36, the sample mean is 13.5. Suppose that the population standard deviation is σ = 3. The null and alternative hypotheses are below. Calculate the p value.o: μ = 15?: μ ≠ 15??
Which one of the following cannot represent a null hypothesis?
Question 9 (3 points)SavedWe want to test whether the mean retirement savings of families between the ages of 56 and 61 is \$163,577. State the null and alternative hypothesis.Question 9 options:A) Ho: μ ≤ 163,577 versus Ha: μ >163,577B)Ho: μ = 163,577 versus Ha: μ ≠ 163,577C) Ho: µ≥163,577 versus Ha: µ<163,577
Question 10 (3 points)SavedUsing a random sample of n = 49, the sample mean is 199.5. Suppose that the population standard deviation is σ = 14. The null and alternative hypotheses are below. Calculate the p value.Ho: μ ≤ 195Ha: μ > 195Question 10 options: