b. State the decision rule. (Negative values should be indicated by a minus sign. Round your answers to 3 decimal places.) The decision rule is to reject HO if t is greater than c. Compute the value of the test statistic. (Round your answer to 3 decimal places.) The test statistic is t
b. State the decision rule. (Negative values should be indicated by a minus sign. Round your answers to 3 decimal places.) The decision rule is to reject HO if t is greater than c. Compute the value of the test statistic. (Round your answer to 3 decimal places.) The test statistic is t
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section: Chapter Questions
Problem 1CA
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Question
The Tampa Bay (Florida) Area Chamber of Commerce wanted to know whether the mean weekly salary of nurses was larger than that of school teachers. To investigate, they collected the following information on the amounts earned last week by a sample of school teachers and nurses.
| School Teachers ($) | 1,095 | 1,076 | 1,077 | 1,125 | 1,034 | 1,059 | 1,052 | 1,070 | 1,079 | 1,080 |
| Nurses ($) | 1,091 | 1,140 | 1,071 | 1,021 | 1,100 |
1,109 |
1,075 |
1,079 |
||
Is it reasonable to conclude that the mean weekly salary of nurses is higher? Use the 0.01 significance level. Hint: For the calculations, assume the nurses as the first sample.
Transcribed Image Text:b. State the decision rule. (Negative values should be indicated by a minus sign. Round your answers to 3 decimal places.)
The decision rule is to reject HO if t is
greater than
c. Compute the value of the test statistic. (Round your answer to 3 decimal places.)
The test statistic is t
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