A college lecturer randomly selected thirty-five students in

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2022-03-02

A college lecturer randomly selected thirty-five students in his class to complete an assigned task andit is found that the 95% confidence interval for the true average time in completing the task is(17.278, 28.722) minutes. It is thought that this interval is too wide, and a confidence interval of totalwidth 5 minutes will be more desirable.(a) Using the same value of , find the new confidence interval in this case.(b) Find the confidence level for the interval in part (a).

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alenahelenash

alenahelenash

Expert2022-03-10Added 556 answers

SSee my solution:

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