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. Complete parts a and b below.
|
4.32 |
5.06 |
5.69 |
6.44 |
7.18 |
7.78 |
8.41 |
8.67 |
9.67 |
a. Construct a 95% confidence interval estimate for the population mean amount spent for lunch at a fast-food restaurant, assuming a normal distribution.The % confidence interval estimate is from $ to $
b. Interpret the interval constructed in (a)
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The table below contains the amount that a sample of nine
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The following data are the amounts that a sample of 15 customers
spent for lunch ($) at a fast-food restaurant. Complete parts
(a) through (d) below.
a. Construct a 95% confidence interval estimate
for the population mean amount spent for lunch ($) at a fast-food
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b. Interpret the interval constructed in
(a).
c. What assumption must you make about the
population distribution in order to construct the confidence
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d. Do you think that the assumption...
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The following data are the amounts that a sample of 15 customers
spent for lunch ($) at a fast-food restaurant. Complete parts
(a) through (d) below.
a. Construct a 95% confidence interval estimate
for the population mean amount spent for lunch ($) at a fast-food
restaurant.
b. Interpret the interval constructed in
(a).
c. What assumption must you make about the
population distribution in order to construct the confidence
interval estimate in (a)?
d. Do you think that the assumption...
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