Exercise 8-54 Furniture Land surveyed 640 consumers and found that 478 were enthusiastic about a new...

Exercise 8-54

Furniture Land surveyed 640 consumers and found that 478 were enthusiastic about a new home dècor it plans to show in its store in High Point.

Construct the 98% confidence interval for the population proportion. (Round the final answers to 3 decimal places.)

Confidence interval for the population proportion is ___ and ___ .

Exercise 8-46

The employees of Electronics Inc. would like to have a dental plan as part of their benefits package. The question is: How much does a typical employee and his or her family spend per year on dental expenses? A sample of 46 employees reveals the mean amount spent last year was $1970, with a standard deviation of $550.

a. Construct a 90% confidence interval for the population mean. (Round the final answers to the nearest whole dollar.)

Population mean $____ $ ____

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orchestra answered 2 years ago

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