Question

Question

Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation).

NOTE: For scientific notation, a period MUST be used as the decimal point marker.

The personnel department of a large corporation wants to estimate the family dental expenses of its employees to determine the feasibility of providing a dental insurance plan. A random sample of 12 employees reveals the following family dental expenses (in dollars):

115

370

250

593

540

225

117

425

318

182

275

228

Construct a 95% confidence interval for the average family dental expenses for all employees in this corporation.

Place your LOWER limit, in dollars rounded to 1 decimal place, in the first blank. Do not use a dollar sign, a comma, or any other stray mark. For example, 123.4 would be a legitimate entry.

Place your UPPER limit, in dollars rounded to 1 decimal place, in the second blank. Do not use a dollar sign, a comma, or any other stray mark. For example, 567.8 would be a legitimate entry.

Lower Limit__________ Upper Limit ___________

Please provide step by step instructions and detailed explanation. I know the correct answer, I used descriptive analysis in excel and was able to solve other similar questions but for some reason this question is not coming up with the right answer.

Answer 1