Mathematics, 15.07.2021 17:00, sehaamxoxo34
A random sample of 49 measurements from one population had a sample mean of 18, with sample standard deviation 5. An independent random sample of 64 measurements from a second population had a sample mean of 21, with sample standard deviation 6. Test the claim that the population means are different. Use level of significance 0.01
What distribution does the sample test statistic follow? Explain
a. The Student's t. We assume that both population distributions are approximately normal with known standard deviations
b. The standard normal. We assume that both population distributions are approximately normal with unknown standard deviations
c. The Student's t. We assume that both population distributions are approximately normal with unknown standard deviations d. The standard normal. We assume that both population distributions are approximately normal with known standard deviations.
Answers: 2
Mathematics, 21.06.2019 18:30, Sruyle51230
Which value would be a solution for x in the inequality 47-4x< 7
Answers: 1
Mathematics, 21.06.2019 20:30, gwendallinesikes
Is the point (0, 8) on the x-axis or y-axis? how do you know?
Answers: 2
A random sample of 49 measurements from one population had a sample mean of 18, with sample standard...
Social Studies, 11.06.2021 21:20
Mathematics, 11.06.2021 21:20
Spanish, 11.06.2021 21:20