Question: Refer to the box with the smiling face scale for rating cereals on page 339. Using the data that 30 out of 42 youngsters in

Refer to the box with the smiling face scale for rating cereals on page 339. Using the data that 30 out of 42 youngsters in a sample rated a cereal in the highest category, find an approximate 95% confidence interval for the corresponding population proportion.

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