Dr. Susan Benner is an industrial psychologist. She is currently studying stress among executives of Internet companies. She developed a questionnaire that she believes measures stress. A score above 80 indicates stress at a dangerous level. A random sample of 15 executives revealed the following stress level scores. a)Find the mean stress level for this sample. What is the point estimate of the population mean? b) Construct a 95% confidence level for the population mean. c) Is it reasonable to conclude that Internet executives have a mean stress level in the dangerous level, according to Dr. Benner's test?
Dr. Susan Benner is an industrial psychologist. She is currently studying stress among executives of Internet companies. She developed a questionnaire that she believes measures stress. A score above 80 indicates stress at a dangerous level. A random sample of 15 executives revealed the following stress level scores. a)Find the mean stress level for this sample. What is the point estimate of the population mean? b) Construct a 95% confidence level for the population mean. c) Is it reasonable to conclude that Internet executives have a mean stress level in the dangerous level, according to Dr. Benner's test?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Please answer the following question Using EXCEL:
Transcribed Image Text:Stress
94
78
83
90
78
99
97
90
97
90
93
94
100
75
84
Dr. Susan Benner is an industrial psychologist. She is currently studying
stress among executives of Internet companies. She developed a
questionnaire that she believes measures stress. A score above 80 indicates
stress at a dangerous level. A random sample of 15 executives revealed the
following stress level scores.
a)Find the mean stress level for this sample. What is the point estimate of
the population mean?
b) Construct a 95% confidence level for the population mean.
c) Is it reasonable to conclude that Internet executives have a mean stress
level in the dangerous level, according to Dr. Benner's test?
Expert Solution
Step 1
Given Information:
The random sample of size, n=15.
The data for the stress level is,
| Stress | 94 | 78 | 83 | 90 | 78 | 99 | 97 | 90 | 97 | 90 | 93 | 94 | 100 | 75 | 84 |
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