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A survey of 1070 people who took trips revealed that 72 of them included a visit...

A survey of 1070 people who took trips revealed that 72 of them included a visit to a theme park. Based on those survery results, a management consultant claims that less than 9 % of trips include a theme park visit. Test this claim using the α=0.01 significance level.

The test statistic is:

The critical value is:

The conclusion is A. : There is sufficient evidence to support the claim that less than 9 % of trips include a theme park visit.

B. There is not sufficient evidence to support the claim that less than 9 % of trips include a theme park visit.

Math   Statistics-And-Probability   
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Answer #1

from above:

The test statistic is =-2.326 ~ -2.33

The critical value is = -2.595 ~ -2.60

The conclusion is A. : There is sufficient evidence to support the claim that less than 9 % of trips include a theme park visit.

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