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Ilowing statements 4. A researcher wishes to determine whether the average age c people in a province is really 56.3 years. A sample of 35 resident has an average age of 53.2 years. Use a = 0.05 and assume tho the ages are normally distributed with a standard deviation o 2,1 years. 5. A cable brand claims to have a breaking strength of at least 900 pounds with a standard deviation of 13 pounds. A company researche selects a sample of 29 cables and finds out that the average breaking strength is 825.3 pounds. Assume that the breaking strength of the

Ilowing statements 4. A researcher wishes to determine whether the average age c people in a province is really 56.3 years. A sample of 35 resident has an average age of 53.2 years. Use a = 0.05 and assume tho the ages are normally distributed with a standard deviation o 2,1 years. 5. A cable brand claims to have a breaking strength of at least 900 pounds with a standard deviation of 13 pounds. A company researche selects a sample of 29 cables and finds out that the average breaking strength is 825.3 pounds. Assume that the breaking strength of the

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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B. Direction: Determine what test statistic is appropriate to be used in the following statements 4. A researcher wishes to determine whether the average age of people in a province is really 56.3 years. A sample of 35 residents has án average age of 53.2 years. Use a = 0.05 and assume that the ages are normally distributed with a standard deviation of 2.1 years. 5. A cable brand claims to have a breaking strength of at least 900 pounds with a standard deviation of 13 pounds. A company researcher selects a sample of 29 cables and finds out that the average breaking strength is 825.3 pounds. Assume that the breaking strength of the cables is normally distributed. If the level of significance is set to a = 0.05
Transcribed Image Text:B. Direction: Determine what test statistic is appropriate to be used in the following statements 4. A researcher wishes to determine whether the average age of people in a province is really 56.3 years. A sample of 35 residents has án average age of 53.2 years. Use a = 0.05 and assume that the ages are normally distributed with a standard deviation of 2.1 years. 5. A cable brand claims to have a breaking strength of at least 900 pounds with a standard deviation of 13 pounds. A company researcher selects a sample of 29 cables and finds out that the average breaking strength is 825.3 pounds. Assume that the breaking strength of the cables is normally distributed. If the level of significance is set to a = 0.05
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