Information regarding the price of a roll of camera film (35 mm, 24 exposure) for a sample of 12 cities worldwide is shown below. Determine a 95% confidence interval for the population mean.
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Price of Film Information
|
|
Mean
|
5.3667
|
|
Standard Error
|
0.7409
|
|
Median
|
4.8700
|
|
Standard Deviation
|
2.5666
|
|
Sample Variance
|
6.5873
|
|
Kurtosis
|
4.0201
|
|
Skewness
|
1.8041
|
|
Range
|
9.4100
|
|
Minimum
|
2.7300
|
|
Maximum
|
12.1400
|
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Sum
|
64.4000
|
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Count
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12.0000
|