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  3. suppose that 14 children, who were learning to rid

Suppose that 14 children, who were learning to ride two-wheel bikes, were surveyed to determine how...

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Statistics

Suppose that 14 children, who were learning to ride two-wheelbikes, were surveyed to determine how long they had to use trainingwheels. It was revealed that they used them an average of sixmonths with a sample standard deviation of three months. Assumethat the underlying population distribution is normal.

1. What distribution should you use for this problem? Why?

2. Construct a 99\% confidence interval for the population meanlength of time using training wheels.

Answer & Explanation Solved by verified expert
4.4 Ratings (657 Votes)
SolutionGivenSample Size n 14Sample mean monthsSample standard deviation s 3 monthsthe underlying population distribution is    See Answer
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