Question
The manager of The Cheesecake Factory in Boston reports that on six randomly selected weekdays, the...
The manager of The Cheesecake Factory in Boston reports that on six randomly selected weekdays, the number of customers served was 230, 235, 65, 185, 120, and 245. She believes that the number of customers served on weekdays follows a normal distribution. Construct the 99% confidence interval for the average number of customers served on weekdays. (You may find it useful to reference the t table. Round intermediate calculations to at least 4 decimal places, "sample mean" and "sample standard deviation" to 2 decimal places. Round "t" value to 3 decimal places and final answers to 2 decimal places.)
Homework Answers
Answer #1
| Values ( X ) |
 |
|
| 230 | 2500 | |
| 235 | 3025 | |
| 65 | 13225 | |
| 185 | 25 | |
| 120 | 3600 | |
| 245 | 4225 | |
| Total | 1080 | 26600 |
Mean 
Standard deviation 
Confidence Interval
Lower Limit = 
Lower Limit = 59.9351
Upper Limit = 
Upper Limit = 300.0649
99% Confidence interval is ( 59.94 , 300.06 )
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