a. Formulate the null and alternative hypotheses for this application. Ho: less than or equal to 15 Ha greater than 15 b. Compute the value of the test statistic (to 2 decimals). c. What is the p-value (to 4 decimals)? d. Using α = .01, is a premium rate justified for this client? Yes ✓ 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. Suppose a sample of 35 surveys produces the data in the Microsoft Excel Online file below. Use a known σ = 3.6 minutes. Is the premium rate justified? X Open spreadsheet a. Formulate the null and alternative hypotheses for this application. Ho: less than or equal to 15 Ha greater than 15 b. Compute the value of the test statistic (to 2 decimals).
a. Formulate the null and alternative hypotheses for this application. Ho: less than or equal to 15 Ha greater than 15 b. Compute the value of the test statistic (to 2 decimals). c. What is the p-value (to 4 decimals)? d. Using α = .01, is a premium rate justified for this client? Yes ✓ 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. Suppose a sample of 35 surveys produces the data in the Microsoft Excel Online file below. Use a known σ = 3.6 minutes. Is the premium rate justified? X Open spreadsheet a. Formulate the null and alternative hypotheses for this application. Ho: less than or equal to 15 Ha greater than 15 b. Compute the value of the test statistic (to 2 decimals).
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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X bar= 16.38571429
Transcribed Image Text:a. Formulate the null and alternative hypotheses for this application.
Ho: less than or equal to 15
Ha greater than 15
b. Compute the value of the test statistic (to 2 decimals).
c. What is the p-value (to 4 decimals)?
d. Using α = .01, is a premium rate justified for this client?
Yes ✓
Transcribed Image Text: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. Suppose a sample of
35 surveys produces the data in the Microsoft Excel Online file below. Use a known σ = 3.6 minutes. Is the premium rate
justified?
X
Open spreadsheet
a. Formulate the null and alternative hypotheses for this application.
Ho: less than or equal to 15
Ha greater than 15
b. Compute the value of the test statistic (to 2 decimals).
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