Can you please only answer: B & C

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 26PFA
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Can you please only answer: B & C 

e vet d Sifitar questionT
TOU Caln etry tis
question below
A retailer wants to see if a red "Sale" sign brings in more
revenue than the same "Sale" sign in blue. The data below
shows the revenue in thousands of dollars that was
achieved for various days when the retailer decided to put
the red "Sale" sign up and days when the retailer decided
to put the blue "Sale" sign up.
Red: 2.8,
1.2,
2,
1.7,
3.1,
3.6,
3.3,
0.5,
1.8,
2.8
Blue: 2.1,
1.8,
2.8,
4.1,
2,
3.2,
1.5,
3.4,
1,
3.8
Assume that both populations follow a normal distribution.
What can be concluded at the a =
0.05 level of
significance level of significance?
For this study, we should use
t-test for the difference between two independent population means
a. The null and alternative hypotheses would be:
Но:
μ1
µ2
(please enter a decimal)
H1:
μ1
(Please enter a decimal)
b. The test statistic t
(please
show your answer to 3 decimal places.)
c. The p-value
(Please show your answer
to 4 decimal places.)
d. The p-value is
e. Based on this, we should [ fail to reject
the
null hypothesis.
Transcribed Image Text:e vet d Sifitar questionT TOU Caln etry tis question below A retailer wants to see if a red "Sale" sign brings in more revenue than the same "Sale" sign in blue. The data below shows the revenue in thousands of dollars that was achieved for various days when the retailer decided to put the red "Sale" sign up and days when the retailer decided to put the blue "Sale" sign up. Red: 2.8, 1.2, 2, 1.7, 3.1, 3.6, 3.3, 0.5, 1.8, 2.8 Blue: 2.1, 1.8, 2.8, 4.1, 2, 3.2, 1.5, 3.4, 1, 3.8 Assume that both populations follow a normal distribution. What can be concluded at the a = 0.05 level of significance level of significance? For this study, we should use t-test for the difference between two independent population means a. The null and alternative hypotheses would be: Но: μ1 µ2 (please enter a decimal) H1: μ1 (Please enter a decimal) b. The test statistic t (please show your answer to 3 decimal places.) c. The p-value (Please show your answer to 4 decimal places.) d. The p-value is e. Based on this, we should [ fail to reject the null hypothesis.
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