Question: 11.61 Refer to Exercises 11.32 and 11.54. Use the pooled pro cedure to compute a 95% confidence interval for the dif ference in mean days

11.61 Refer to Exercises 11.32 and 11.54. Use the pooled pro cedure to compute a 95% confidence interval for the dif ference in mean days of symptoms for the zinc and placebo treatments.

(Use placebo 2 zinc.)

Section 11.5 and Case Studies 11.1 and 11.2 Skillbuilder Exercises

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