The table below contains the amount that a sample of nine customers spent for lunch ($)...

The table below contains the amount that a sample of nine customers spent for lunch ($) at a fast-food restaurant:

4.88 5.01 5.79 6.35 7.39 7.68 8.23 8.71 9.88

a. Compute the sample mean and sample standard deviation of the amount spent for lunch.

b. Construct a 99% confidence interval estimate for the population mean amount spent for lunch ($) at the fast-food restaurant, assuming the population is normally distributed.

c. Interpret the interval constructed in (b).

Expert Solution

orchestra answered 1 year ago

The table below contains the amount that a sample of nine customers spent for lunch ($)...

The table below contains the amount that a sample of nine customers spent for lunch ($) at a fast-food restaurant: 4.88 5.01 5.79 6.35 7.39 7.68 8.23 8.71 9.88 a.Compute the sample mean and sample standard deviation of the amount spent for lunch. b.Construct a 99% confidence interval estimate for the population mean amount spent for lunch ($) at the fast-food restaurant, assuming the population is normally distributed. c.Interpret the interval constructed in (b). Better to use the computer text...

2. The table below contains the amount that a sample of nine customers spent for lunch...

2. The table below contains the amount that a sample of nine customers spent for lunch ($) at a fast-food restaurant. Complete parts a and b below. 4.26 5.23 5.67 6.28 7.44 7.51 8.25 8.69 9.61 Construct a 99% confidence interval estimate for the population mean amount spent for lunch at a fast-food restaurant, assuming normal distribution. The % confidence interval estimate is from $____________to $___________ 3. he table below contains a certain social media company's penetration values (the percentage...

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Data were collected on the amount spent for lunch by 64 customers at a major Houston...

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The table below contains the amount that a sample of nine customers spent for lunch ($)...

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