2. Textbook, Problem 8.18, P. 284. The table below contains the amount that a sample...
2. Textbook, Problem 8.18, P. 284.
The table below contains the amount that a sample of nine customers spent for lunch ($) at a fast-food restaurant:
4.88 5.01 5.79 6.35 7.39 7.68 8.23 8.71 9.88
- Compute the sample mean and sample standard deviation of the amount spent for lunch.
- Construct a 99% confidence interval estimate for the population mean amount spent for lunch ($) at the fast-food restaurant, assuming the population is normally distributed.
- Interpret the interval constructed in (b).
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2. Textbook, Problem
8.18, P. 284.
The table below contains the amount that a sample...
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)
İ Question Help * The table below contains the amou that a sample of nine customers...
İ Question Help * The table below contains the amou that a sample of nine customers spent for lunch i$ at a fast-food restamrant Complete parts a and b below 4.62 5.22 566 647 7.47 763 8.12 832 965 a. Constrctぁ95% oonfonce nterval estisile Or te population mean amont spet fork nch at a fast food restaurant assured a nonna aantain The % confieren niervol estrate is from S576 la S828 (Round to two decimal places as needed.) b. Interpret...
The following data are the amounts that a sample of 15 customers spent for lunch ($)...
The following data are the amounts that a sample of 15 customers
spent for lunch ($) 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 ($) at a fast-food
restaurant.
b. Interpret the interval constructed in
(a).
c. What assumption must you make about the
population distribution in order to construct the confidence
interval estimate in (a)?
d. Do you think that the assumption...
The amount that a sample of eight customers spent for lunch ($) at a fast-food restaurant...
The amount that a sample of eight customers spent for lunch ($) at a fast-food restaurant is shown below: 67, 52, 86, 52, 88, 32, 28, 43 a. Find the sample mean ??? b. Find the sample standard deviation S c. Construct a 95% confidence interval estimate for the population mean ?
stats help
The following data are the amounts that a sample of 15 customers spent for lunch ($) at a fast-food restaurant. Complete parts (a) through (d) below.Construct a 95% confidence interval estimate for the population mean amount spent for lunch ($) at a fast-food restaurant.
Assuming that the population is normally distributed, construct a 99% confidence interval for the population mean...
Assuming that the population is normally distributed, construct a 99% confidence interval for the population mean for each of the samples below. Explain why these two samples produce different confidence intervals even though they have the same mean and range. Sample A: 1 3 3 4 5 6 6 8 Sample B: 1 2 3 4 5 6 7 8 Full data set Construct a 99% confidence interval for the population mean for sample A (Type integers or decimals rounded...
İ Question Help * The table below contains the amou that a sample of nine customers spent for lunch i$ at a fast-food restamrant Complete parts a and b below 4.62 5.22 566 647 7.47 763 8.12 832 965 a. Constrctぁ95% oonfonce nterval estisile Or te population mean amont spet fork nch at a fast food restaurant assured a nonna aantain The % confieren niervol estrate is from S576 la S828 (Round to two decimal places as needed.) b. Interpret...
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...
Assuming that the population is normally distributed, construct a 99% confidence interval for the population mean for each of the samples below. Explain why these two samples produce different confidence intervals even though they have the same mean and range. Sample A: 1 3 3 4 5 6 6 8 Sample B: 1 2 3 4 5 6 7 8 Full data set Construct a 99% confidence interval for the population mean for sample A (Type integers or decimals rounded...
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