Given the null and alternative hypotheses, sample means, sample sizes, and population standard deviations shown to the right, conduct a hypothesis HA P1- P2>0 test using an alpha level equal to 0.05. X1 = 144 X2= 132 Họ: H1- 4250 o1 = 19 02 = 18 n1 = 40 n2 = 50 Determine the rejection region for the test statistic z. Select the correct choice below and fill in the answer box to complete your choice. (Round to three decimal places as needed.) O A. z< or z> O B. z< O C. z> Calculate the value of the test statistic z= (Round to two decimal places as needed.) Since the test statistic v in the rejection region, v the null hypothesis. There is evidence to conclude that the mean of population 1 is greater than the mean of population 2.
Given the null and alternative hypotheses, sample means, sample sizes, and population standard deviations shown to the right, conduct a hypothesis HA P1- P2>0 test using an alpha level equal to 0.05. X1 = 144 X2= 132 Họ: H1- 4250 o1 = 19 02 = 18 n1 = 40 n2 = 50 Determine the rejection region for the test statistic z. Select the correct choice below and fill in the answer box to complete your choice. (Round to three decimal places as needed.) O A. z< or z> O B. z< O C. z> Calculate the value of the test statistic z= (Round to two decimal places as needed.) Since the test statistic v in the rejection region, v the null hypothesis. There is evidence to conclude that the mean of population 1 is greater than the mean of population 2.
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.4: Discrete Random Variables; Applications To Decision Making
Problem 10E
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Please make sure to do the rounding.
Transcribed Image Text:Given the null and alternative hypotheses, sample
means, sample sizes, and population standard
deviations shown to the right, conduct a hypothesis HA: H1- H2>0
test using an alpha level equal to 0.05.
X1 = 144 X2 = 132
Ho: H1- H250
01 = 19
n1 = 40
02 = 18
n2 = 50
Determine the rejection region for the test statistic z. Select the correct choice below and fill in the answer box to complete your choice.
(Round to three decimal places as needed.)
O A. z<
or z>
O B. z<
O C. z>
Calculate the value of the test statistic.
z= (Round to two decimal places as needed.)
Since the test statistic
V in the rejection region,
V the null hypothesis. There is
V evidence to conclude that the mean of population 1 is greater than the mean of population 2.
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