SOLUTION: An irate patient complained that the cost of doctor's visit was to high. She randomly surveyed 20 other patients and found that the mean amount of money they spent on each doctor's

Question 1132263: An irate patient complained that the cost of doctor's visit was to high. She randomly surveyed 20 other patients and found that the mean amount of money they spent on each doctor's visit was $44.80. the standard deviation of the sample was 43.53.
a) Find a point estimate of the population mean.
b) Find the 95% confidence interval of the population mean. Assume the variable id normally distributed.
c) Test the hypothesis that the cost of doctor's visit was $35 at 5%
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
this was done yesterday.

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