QUESTION 1 A local convenience shopping centre wants to place a limit on how long customers are allowed to be parked in a specific section of the parking lot. The manager of the centre is of the opinion that the average time customers spend at the centre, is 30 minutes. The shopping times of n = 64 randomly selected customers were recorded. The average and variance of the 64 shopping times were 33 minutes and 256 minutes, respectively. The questions follow on the next page.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 32E
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QUESTION 1
A local convenience shopping centre wants to place a limit on how long customers are allowed to be parked in a
specific section of the parking lot. The manager of the centre is of the opinion that the average time customers
spend at the centre, is 30 minutes. The shopping times of n = 64 randomly selected customers were recorded.
The average and variance of the 64 shopping times were 33 minutes and 256 minutes, respectively.
The questions follow on the next page.
2. Construct a 90% confidence interval for the average time customers spend at the local shopping centre.
Interpret your result
Transcribed Image Text:QUESTION 1 A local convenience shopping centre wants to place a limit on how long customers are allowed to be parked in a specific section of the parking lot. The manager of the centre is of the opinion that the average time customers spend at the centre, is 30 minutes. The shopping times of n = 64 randomly selected customers were recorded. The average and variance of the 64 shopping times were 33 minutes and 256 minutes, respectively. The questions follow on the next page. 2. Construct a 90% confidence interval for the average time customers spend at the local shopping centre. Interpret your result
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