lenovo $/9780357118191/cfi/469!/4/4@0.00:42.5 20. Prescription Drug Costs. Annual expenditure for prescription drugs was $838 per person in the Northeast of the country. A sample of 60 individuals in the Midwest showed a per person annual expenditure for prescription drugs of $745. Use a popula- tion standard deviation of $300 to answer the following questions. a. Formulate hypotheses for a test to determine whether the sample data support the conclusion that the population annual expenditure for prescription drugs per person is lower in the Midwest than in the Northeast. b. What is the value of the test statistic? c. What is the p-value? d. At a .01, what is your conclusion? 21. Cost of Telephone Surveys. Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can be completed in a mean time of 15 minutes or less. If a longer mean survey time is necessary, a premium rate is charged. A sample of 35 surveys provided the survey times shown in the file Fowle. Based upon past studies, the population standard deviation is assumed known witho= 4 minutes. Is the premium rate justified? a. Formulate the null and alternative hypotheses for this application. b. Compute the value of the test statistic. c. What is the p-value? d. At a = .01, what is your conclusion? 22. Time in Supermarket Checkout Lines. CCN and ActMedia provided a television channel targeted to individuals waiting in supermarket checkout lines. The channel showed news, short features, and advertisements. The length of the program was based on the assumption that the population mean time a shopper stands in a super- market checkout line is 8 minutes. A sample of actual waiting times will be used to test this assumption and determine whether actual mean waiting time differs from this standard. Formulate the hypotheses for this application. We've ZOon a. P Clipboard Font Alignmen A38 D A B C G Time 1 23 2 17 11 3 12 4 23 6 20 23 7 8 15 16 10 23 11 22 18 12 13 23 25 14 15 14 16 12 12 17 20 18 18 19 12 20 19 21 11 22 11 23 20 24 21 25 11 26 18 27 14 28 13 29 13 30 19 31 16 32 10 33 22 34 18 35 Data Ready O Et
lenovo $/9780357118191/cfi/469!/4/4@0.00:42.5 20. Prescription Drug Costs. Annual expenditure for prescription drugs was $838 per person in the Northeast of the country. A sample of 60 individuals in the Midwest showed a per person annual expenditure for prescription drugs of $745. Use a popula- tion standard deviation of $300 to answer the following questions. a. Formulate hypotheses for a test to determine whether the sample data support the conclusion that the population annual expenditure for prescription drugs per person is lower in the Midwest than in the Northeast. b. What is the value of the test statistic? c. What is the p-value? d. At a .01, what is your conclusion? 21. Cost of Telephone Surveys. Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can be completed in a mean time of 15 minutes or less. If a longer mean survey time is necessary, a premium rate is charged. A sample of 35 surveys provided the survey times shown in the file Fowle. Based upon past studies, the population standard deviation is assumed known witho= 4 minutes. Is the premium rate justified? a. Formulate the null and alternative hypotheses for this application. b. Compute the value of the test statistic. c. What is the p-value? d. At a = .01, what is your conclusion? 22. Time in Supermarket Checkout Lines. CCN and ActMedia provided a television channel targeted to individuals waiting in supermarket checkout lines. The channel showed news, short features, and advertisements. The length of the program was based on the assumption that the population mean time a shopper stands in a super- market checkout line is 8 minutes. A sample of actual waiting times will be used to test this assumption and determine whether actual mean waiting time differs from this standard. Formulate the hypotheses for this application. We've ZOon a. P Clipboard Font Alignmen A38 D A B C G Time 1 23 2 17 11 3 12 4 23 6 20 23 7 8 15 16 10 23 11 22 18 12 13 23 25 14 15 14 16 12 12 17 20 18 18 19 12 20 19 21 11 22 11 23 20 24 21 25 11 26 18 27 14 28 13 29 13 30 19 31 16 32 10 33 22 34 18 35 Data Ready O Et
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Problem 21 c-d
The excel spreadsheet is the data
Transcribed Image Text:lenovo
$/9780357118191/cfi/469!/4/4@0.00:42.5
20. Prescription Drug Costs. Annual expenditure for prescription drugs was $838 per
person in the Northeast of the country. A sample of 60 individuals in the Midwest
showed a per person annual expenditure for prescription drugs of $745. Use a popula-
tion standard deviation of $300 to answer the following questions.
a. Formulate hypotheses for a test to determine whether the sample data support the
conclusion that the population annual expenditure for prescription drugs per person
is lower in the Midwest than in the Northeast.
b. What is the value of the test statistic?
c. What is the p-value?
d. At a .01, what is your conclusion?
21. Cost of Telephone Surveys. Fowle Marketing Research, Inc., bases charges to a
client on the assumption that telephone surveys can be completed in a mean time of 15
minutes or less. If a longer mean survey time is necessary, a premium rate is charged.
A sample of 35 surveys provided the survey times shown in the file Fowle. Based upon
past studies, the population standard deviation is assumed known witho= 4 minutes. Is
the premium rate justified?
a. Formulate the null and alternative hypotheses for this application.
b. Compute the value of the test statistic.
c. What is the p-value?
d. At a = .01, what is your conclusion?
22. Time in Supermarket Checkout Lines. CCN and ActMedia provided a television
channel targeted to individuals waiting in supermarket checkout lines. The channel
showed news, short features, and advertisements. The length of the program was
based on the assumption that the population mean time a shopper stands in a super-
market checkout line is 8 minutes. A sample of actual waiting times will be used to
test this assumption and determine whether actual mean waiting time differs from this
standard.
Formulate the hypotheses for this application.
We've
ZOon
a.
P
Transcribed Image Text:Clipboard
Font
Alignmen
A38
D
A
B
C
G
Time
1
23
2
17
11
3
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4
23
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23
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8
15
16
10
23
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18
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13
23
25
14
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12
12
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20
18
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11
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18
35
Data
Ready
O Et
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