A large retailer observes the percentage of customers who leave its stores with a purchase. It would like to investigate if the percentage of wormen who leave the store with a purchase is lower than the percentage of men. In a random sample 170 female shoppers, 147 left the store with a purchase. In a random sample of 160 male shoppers, 135 left the store with a purchase. Complete parts a and b below. a. Perform a hypothesis test with a= 0.10 to determine if the percentage of women who leave the store with a purchase lower than the percentage of men. Let population 1 be women and population 2 be men. What are the correct null and alternative hypotheses? VA Ho: P - P2 20 OB. Hg: P, -P2 #0 H,: P, -P2 =0 OD. Ho: P1 - P2 =0 H1: P - P2 0 H:P - P2 <0 OC. Hg: P1 - P2>0 H1:P - P2 s0 What is the test statistic? z, = (Round to two decimal places as needed.)
A large retailer observes the percentage of customers who leave its stores with a purchase. It would like to investigate if the percentage of wormen who leave the store with a purchase is lower than the percentage of men. In a random sample 170 female shoppers, 147 left the store with a purchase. In a random sample of 160 male shoppers, 135 left the store with a purchase. Complete parts a and b below. a. Perform a hypothesis test with a= 0.10 to determine if the percentage of women who leave the store with a purchase lower than the percentage of men. Let population 1 be women and population 2 be men. What are the correct null and alternative hypotheses? VA Ho: P - P2 20 OB. Hg: P, -P2 #0 H,: P, -P2 =0 OD. Ho: P1 - P2 =0 H1: P - P2 0 H:P - P2 <0 OC. Hg: P1 - P2>0 H1:P - P2 s0 What is the test statistic? z, = (Round to two decimal places as needed.)
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 29E
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Transcribed Image Text:lower than the percentage of men. In a random sample c
A large retailer observes the percentage of customers who leave its stores with a purchase. It would like to investigate if the percentage of wornen who leave the store with a purchase
170 female shoppers, 147 left the store with a purchase. In a random sample of 160 male shoppers, 135 left the store with a purchase. Complete parts a and b below.
a. Perform a hypothesis test with a = 0.10 to determine if the percentage of women who leave the store with a purchase
lower than the percentage of men. Let population 1 be women and population 2 be men.
What are the correct null and alternative hypotheses?
VA. Ho: P1 - P2 20
H:P -P2 <0
OB. Ho: P1 - P2 #0
H: P, - P2 =0
O D. Ho: P1 - P2 = 0
H,: P1 - P2 #0
OC. Hg: P1 - P2 >0
H1:P1 - P2 30
What is the test statistic?
z, =
(Round to two decimal places as needed.)
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