Some fast-food chains offer a lower-priced combination meal in an effort to attract budget-conscious customers. One chain test-marketed a burger, fries, and drink combination for $4.71. The weekly sales volume for these meals was impressive. Suppose the chain wants to estimate the average amount its customers spent on a meal at their restaurant while this combination offer was in effect. An analyst gathers data from 28 randomly selected customers. The following data represent the sample meal totals. $6.21 $8.40 $6.50 $7.39 $8.60 $11.65 $8.02 $7.20 $4.25 $10.64 6.28 6.57 6.26 6.80 8.46 12.87 7.67 8.86 6.73 7.08 8.47 7.49 8.19 8.82 10.62 7.83 11.42 12.10 Use these data to construct a 90% confidence interval to estimate the population mean value. Assume the amounts spent are normally distributed.
Some fast-food chains offer a lower-priced combination meal in an effort to attract budget-conscious customers. One chain test-marketed a burger, fries, and drink combination for $4.71. The weekly sales volume for these meals was impressive. Suppose the chain wants to estimate the average amount its customers spent on a meal at their restaurant while this combination offer was in effect. An analyst gathers data from 28 randomly selected customers. The following data represent the sample meal totals. $6.21 $8.40 $6.50 $7.39 $8.60 $11.65 $8.02 $7.20 $4.25 $10.64 6.28 6.57 6.26 6.80 8.46 12.87 7.67 8.86 6.73 7.08 8.47 7.49 8.19 8.82 10.62 7.83 11.42 12.10 Use these data to construct a 90% confidence interval to estimate the population mean value. Assume the amounts spent are normally distributed.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter1: Expressions And Functions
Section1.5: Descriptive Modeling And Accuracy
Problem 11PPS
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Some fast-food chains offer a lower-priced combination meal in an effort to attract budget-conscious customers. One chain test-marketed a burger, fries, and drink combination for $4.71. The weekly sales volume for these meals was impressive. Suppose the chain wants to estimate the average amount its customers spent on a meal at their restaurant while this combination offer was in effect. An analyst gathers data from 28 randomly selected customers. The following data represent the sample meal totals.
$6.21 | $8.40 | $6.50 | $7.39 | $8.60 | $11.65 | $8.02 | $7.20 | $4.25 | $10.64 |
6.28 | 6.57 | 6.26 | 6.80 | 8.46 | 12.87 | 7.67 | 8.86 | 6.73 | 7.08 |
8.47 | 7.49 | 8.19 | 8.82 | 10.62 | 7.83 | 11.42 | 12.10 |
Use these data to construct a 90% confidence interval to estimate the population
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