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stimating proportions and finding a value for sample size 8 3 a A random survey...

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stimating proportions and finding a value for sample size 8 3 a A random survey of customers of McDonald s restaurants was taken The results showed that 18 of the 72 surveyed had once worked at a McDonald s Find a 95 confidence interval for the proportion of McDonald s customers that are former employees b A random survey of students in statistics classes was taken The results showed that 84 out of 112 had majors in the STEM fields Find a 99 confidence interval for the proportion of students in statistics classes with majors in the STEM fields c A random sample of snack size bags of Fritos was taken The results showed that 12 out of 84 bags contained more than the weight shown on the snack size bags of Fritos Find a 90 confidence interval for the proportion of snack size bags of Fritos that contain more than the weight shown on the bag

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