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Mathematics Clinic => Statistics => Topic started by: mia on Feb 14, 2020

Title: A marketing research company is estimating the average total compensation of CEOs in the service ...
Post by: mia on Feb 14, 2020
A marketing research company is estimating the average total compensation of CEOs in the service industry. Data were randomly collected from 18 CEOs and the 95% confidence interval for the mean was calculated to be What additional assumption is necessary for this confidence interval to be valid?
◦ None. The Central Limit Theorem applies.
◦ The population of total compensations of CEOs in the service industry is approximately normally distributed.
◦ The sample standard deviation is less than the degrees of freedom.
◦ The distribution of the sample means is approximately normal.
Title: A marketing research company is estimating the average total compensation of CEOs in the service ...
Post by: katkat_flores on Feb 14, 2020
The population of total compensations of CEOs in the service industry is approximately normally distributed.
Title: Re: A marketing research company is estimating the average total compensation of CEOs in the service
Post by: fatma I on Nov 10, 2020
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