Question

A two-tailed test is performed at 95% confidence. The p-value is determined to be 0.09. The null hypothesis
a. should not be rejected
b. has been designed incorrectly
c. could be rejected, depending on the sample size
d. must be rejected​

Answer 1

Answer:

device used to measure the temperature of fishfood

Answer 2

A two-tailed test is performed at 95% confidence. The p-value is determined to be 0.09. The null hypothesis should not be rejected.

• The relevant confidence level is 95 percent if your significance level is 0.05.
• The hypothesis test is statistically significant if the P value is smaller than your significance (alpha) level.
• The results are statistically significant if the confidence interval does not include the null hypothesis value.
• Hence the null hypothesis should not be rejected.