An experiment was conducted to determine whether giving candy to dining parties resulted in greater tips. The mean tip percentages and standard deviations are given in the accompanying table along with the sample sizes. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b). OA. Ho: H1 H₂ H₁: H₁
An experiment was conducted to determine whether giving candy to dining parties resulted in greater tips. The mean tip percentages and standard deviations are given in the accompanying table along with the sample sizes. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b). OA. Ho: H1 H₂ H₁: H₁
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
Related questions
Question
![An experiment was conducted to determine whether
giving candy to dining parties resulted in greater tips. The
mean tip percentages and standard deviations are given
in the accompanying table along with the sample sizes.
Assume that the two samples are independent simple
random samples selected from normally
distributed populations, and do not assume that the
population standard deviations are equal. Complete
parts (a) and (b).
OA. Ho: H₁ H₂
H₁: H₁
H₂
OC. Ho: H₁
H₁: H₁
C
a. Use a 0.05 significance level to test the claim that giving candy does result in greater tips.
What are the null and alternative hypotheses?
H₂
H₂
No candy
Two candies
B. Ho: M₁ = H₂
H₁: H₁ H₂
D. Ho: H₁
μ
H₁
H₂
H₂
H₁: M₁ <H₂
n
29
29
X
S
18.91 1.47
21.75 2.49
T](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fecccc45a-2b97-4a81-a445-917c051abee8%2Fbf347d0e-c0ba-4e68-a4da-000168bc588c%2Fi9qwike_processed.png&w=3840&q=75)
Transcribed Image Text:An experiment was conducted to determine whether
giving candy to dining parties resulted in greater tips. The
mean tip percentages and standard deviations are given
in the accompanying table along with the sample sizes.
Assume that the two samples are independent simple
random samples selected from normally
distributed populations, and do not assume that the
population standard deviations are equal. Complete
parts (a) and (b).
OA. Ho: H₁ H₂
H₁: H₁
H₂
OC. Ho: H₁
H₁: H₁
C
a. Use a 0.05 significance level to test the claim that giving candy does result in greater tips.
What are the null and alternative hypotheses?
H₂
H₂
No candy
Two candies
B. Ho: M₁ = H₂
H₁: H₁ H₂
D. Ho: H₁
μ
H₁
H₂
H₂
H₁: M₁ <H₂
n
29
29
X
S
18.91 1.47
21.75 2.49
T
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