A college has 240 full-time employees that are currently covered under the school's health care plan....
A college has 240 full-time employees that are currently covered under the school's health care plan. The average out-of-pocket cost for the employees on the plan is $1,820 with a standard deviation of $515. The college is performing an audit of its health care plan and has randomly selected 35 employees to analyze their out-of-pocket costs.
a. Calculate the standard error of the mean.
b. What is the probability that the sample mean will be less than $1,765?
c. What is the probability that the sample mean will be more than $1,790 ?
d. What is the probability that the sample mean will be between $1,840 and $1,870 ?
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A college has 240 full-time employees that are currently covered
under the school's health care plan....
Please answer all questions below 2. For a population with a mean equal to 250 and...
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large public university would like to estimate the proportion of
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employees who favor plan A. Round your I...
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