# Question: The following MINITAB output presents a 95 confidence interval for

The following MINITAB output presents a 95% confidence interval for the difference between two mean

a. Is this a left-tailed test, a right-tailed test, or a two-tailed test?

b. How many degrees of freedom did the calculator use?

c. What is the P-value?

d. Can you reject Ho at the a = 0.05 level?

a. Is this a left-tailed test, a right-tailed test, or a two-tailed test?

b. How many degrees of freedom did the calculator use?

c. What is the P-value?

d. Can you reject Ho at the a = 0.05 level?

## Answer to relevant Questions

The following TI-84 plus calculator display Presents the results of a hypothesis test for the difference between two proportions. The sample sizes are n1 = 125 and n2 = 150 a. Is this a left-tailed test, a right-tailed ...Contaminated water: The concentration of benzene was measured in units of milligrams per liter for a simple random sample of five specimens of untreated wastewater produced at a gas field. The sample mean was 7.8 with a ...Describe the differences between performing a hypothesis test for µ1-µ2 with paired samples and performing the same test for independent samples. Can’t read the numbers: Because of printer failure, none of the observed frequencies in the following table were printed, but some of the row and column totals were. Is it possible to construct the corresponding table of ...Compute the value of the chi- square statistic. In a hypothetical study, four hospitals were compared with regard to the outcome of a particular type of surgery. For each patient at each hospital, the outcome was classified ...Post your question