Question

In: Statistics and Probability

A survey of 20 randomly sampled judges employed by the state of Florida found that they...

A survey of 20 randomly sampled judges employed by the state of Florida found that they earned an average wage (including benefits) of $63.00 per hour. The sample standard deviation was $5.90 per hour. (Use t Distribution Table.)

What is the best estimate of the population mean?

Develop a 98% confidence interval for the population mean wage (including benefits) for these employees. (Round your answers to 2 decimal places.)

Confidence interval for the population mean wage is between   and

How large a sample is needed to assess the population mean with an allowable error of $2.00 at 95% confidence? (Round up your answer to the next whole number.)

Sample Size

Solutions

Expert Solution

The best estimate of the population mean = 63

98% confidence interval :

Confidence interval for the population mean wage is between 59.65 and 66.35

Sample Size :

Sample size ( n ) = 34

orchestra answered 1 year ago
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