Question: A physician with a practice is currently serving 290 patients. The physician would like to administer a survey to his patients to measure their satisfaction

A physician with a practice is currently serving 290 patients. The physician would like to administer a survey to his patients to measure their satisfaction level with his practice. A random sample of 25 patients had an average satisfaction score of 8.4on a scale of1-10. The sample standard deviation was 1.1. Complete parts a and b below.

a. Construct a 99% confidence interval to estimate the average satisfaction score for the physician's practice. The 99% confidence interval to estimate the average satisfaction score is left parenthesis nothing comma nothing right parenthesis,.(Round to two decimal places as needed.)

b. What assumption needs to be made for this analysis?

The population is normally distributed.

The population standard deviation is known.

The sample size is less than 5% of the population.

There are no assumptions needed for this analysis.

A physician with a practice is currently serving 300 patients. The physician would like to administer a survey to his patients to measure their satisfaction level with his practice. A random sample of 22 patients had an average satisfaction score of 8.3 on a scale of1-10. The sample standard deviation was 1.3. Complete parts a and b below.

b. What assumption needs to be made for this analysis?

The population standard deviation is known.

The population is normally distributed.

The sample size is less than 5% of the population.

There are no assumptions needed for this analysis.

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