(Answered) In a study of children with a particular disorder parents

Economics

In a study of children with a particular disorder, parents were asked to rate their child on a variety of items related to how well their child performs different tasks. One item was "Has difficulty organizing work," rated on a five-point scale of 0 to 4 with 0 corresponding to "not at all" and 4 corresponding to "very much." The mean rating for 276 boys with the disorder was reported as 2.36 with a standard deviation of 1.07. (Round your answers to four decimal places.)

Compute the 90% confidence interval.

(_____,____)

Compute the 95% confidence interval.

(____,____)

Compute the 99% confidence interval.

(____,____)

Explain the effect of the confidence level on the width of the interval.

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