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A scooter company wants to determine the average amount of time it takes an adult to...

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Statistics

A scooter company wants to determine the average amount of timeit takes an adult to assemble an “easy to assemble” scooter. Asample of 49 times yielded an average time of 18.15 minutes. Assumethat the assembly times are normally distributed and the populationhas a standard deviation of 5.39 minutes.

a) Give a point estimate for the population mean that the sampleof data is taken from.

b) Find the 96% confidence interval for the mean assemblytime.

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