Mathematics, 12.04.2021 14:00 luximartinez
Independent random samples were selected from two quantitative populations, with sample sizes, means, and variances given below.
Population
1 2
Sample Size 32 45
Sample Mean. 9.8 7.3
Sample Variance 10.83 16.49
State the null and alternative hypotheses used to test for a difference in the two population means.
- H0: (1 − 2) = 0 versus Ha: (1 − 2) < 0
- H0: (1 − 2) ≠ 0 versus Ha: (1 − 2) = 0
- H0: (1 − 2) < 0 versus Ha: (1 − 2) > 0
- H0: (1 − 2) = 0 versus Ha: (1 − 2) > 0
- H0: (1 − 2) = 0 versus Ha: (1 − 2) ≠ 0
Calculate the necessary test statistic. (Round your answer to two decimal places.)
z =
Calculate the rejection region with
= 0.01.
(Round your answers to two decimal places. If the test is one-tailed, enter NONE for the unused region.)
z >
z <
Draw the appropriate conclusion.
- H0 is rejected. There is insufficient evidence to indicate a difference in mean.
- H0 is not rejected. There is sufficient evidence to indicate a difference in mean.
- H0 is not rejected. There is insufficient evidence to indicate a difference in mean.
- H0 is rejected. There is sufficient evidence to indicate a difference in mean.
Answers: 2
Mathematics, 21.06.2019 18:00
Arecipe calls for 32 fluid ounces of heavy cream.how many 1 pint containers of heavy cream are needed to make the recipe?
Answers: 2
Mathematics, 21.06.2019 19:30
Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.
Answers: 1
Mathematics, 21.06.2019 20:00
Find all solutions for 2y - 4x =2 y = 2x + 1 site: socratic.org
Answers: 1
Independent random samples were selected from two quantitative populations, with sample sizes, means...
French, 06.07.2019 00:40
Physics, 06.07.2019 00:40
Physics, 06.07.2019 00:40
Mathematics, 06.07.2019 00:40
Mathematics, 06.07.2019 00:40
Mathematics, 06.07.2019 00:40
History, 06.07.2019 00:40
Mathematics, 06.07.2019 00:40
Health, 06.07.2019 00:40
Mathematics, 06.07.2019 00:40
History, 06.07.2019 00:40