A survey of 4722 American youngsters (6 to 19 years of age) found that 708 (roug

Question

A survey of 4722 American youngsters (6 to 19 years of age) found that 708 (roughly 1 5%) were seriously overweight, we want to use this study to estimate the proportion of seriously overweight individuals in the American youngster population (ages 6-19) Which inference procedure should be used? 1 point) A: one sample or matched-pairs t procedure for a mean B: two sample t procedure for two means C: ANOVA for several means D: z procedure for a proportion E:chi-square for two-way tables How common is a coffee habit in the United States? A 2015 Gallup poll asked a random sample of 1009 American adults about their coffee consumption. The report indicates that 675 of respondents were coffee drinkers. Which inference procedure should be used? 1 point) O A: one sample or matched-pairs t procedure for a mean B: two sample t procedure for two means C: ANOVA for several means D: z procedure for a proportion E:chi-square for two-way tables

Explanation / Answer

1. z procedure for a proportion must be used.

Option D is correct.

2. z procedure for a proportion must be used.

Option D is correct.

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