A marketing company wants to find the average age of employees within a large computer firm. They believe that the average age is 27 years old. After sampling 13 people, they report the following ages: 23 25 31 42 27 35 38 22 28 40 19 26 29 Can they say that their claim is correct? (Use a = .01)

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 3E
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Transcribed Image Text:Type of Test: Hypotheses: Test Statistic: P-value: Decision:
6. A marketing company wants to find the average age of employees within a large computer
firm. They believe that the average age is 27 years old.
After sampling 13 people, they report the following ages:
23
25
31
42
27
35
38
22
28
40
19
26
29
Can they say that their claim is correct? (Use a = .01)
Transcribed Image Text:6. A marketing company wants to find the average age of employees within a large computer firm. They believe that the average age is 27 years old. After sampling 13 people, they report the following ages: 23 25 31 42 27 35 38 22 28 40 19 26 29 Can they say that their claim is correct? (Use a = .01)
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