A physician wants to test two blood glucose meters to see if there is any differencein measurements. To do , he measures the glucose in blood samples taken from several randomly selected patients with both meters.Suppose that data were collected for a random sample of10

patients, where each difference is calculated by subtracting the blood glucose rating from Meter Afrom the blood glucose reading from Meter B. Assume that the measurements are normally distributed. What type of test is this hypothesis test?

Select the correct answer below:

This is a two-tailed test because the alternative hypothesis is

Ha:d0

.

This is a right-tailed test because the alternative hypothesis is

Ha:d>0

.

This is a right-tailed test because the alternative hypothesis is

Ha:d<0

.

This is a left-tailed test because the alternative hypothesis is

Ha:d<0

.

This is a left-tailed test because the alternative hypothesis is

Ha:d>0

.