A 90% confidence interval for the average salaryof all CEOS in the electronics industry wasconstructed using the results of a random surveyof 45 CEOS. The interval was ($139,048,$154,144). Give a practical interpretation of theinterval.90% of all CEOS in the electronics industryhave salaries that fall between $139,048 to$154,144We are 90% confident that the mean salaryof all CEOS in the electronics industry fallsin the interval $139,048 to $154,144.We are 90% confident that the mean salaryof the sampled CEOS falls in the interval$139,048 to $154,144.90% of all CEOS in the electronics industryhave salaries that fall between $139,048to $154,144

Confidence interval: It is defined as the range which contains the value of true population…

A 90% confidence interval for the average salary of all CEOS in the electronics industry was constructed using the results of a random survey of 45 CEOS. The interval was ($139,048, $154,144). Give a practical interpretation of the interval.

A 90% confidence interval for the average salary of all CEOS in the electronics industry was constructed using the results of a random survey of 45 CEOS. The interval was ($139,048, $154,144). Give a practical interpretation of the interval.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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Question

A 90% confidence interval for the average salary
of all CEOS in the electronics industry was
constructed using the results of a random survey
of 45 CEOS. The interval was ($139,048,
$154,144). Give a practical interpretation of the
interval.
90% of all CEOS in the electronics industry
have salaries that fall between $139,048 to
$154,144
We are 90% confident that the mean salary
of all CEOS in the electronics industry falls
in the interval $139,048 to $154,144.
We are 90% confident that the mean salary
of the sampled CEOS falls in the interval
$139,048 to $154,144.
90% of all CEOS in the electronics industry
have salaries that fall between $139,048
to $154,144

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