As a greeting card company in Burton, New Mexico wants to detern population is l

Question

As a greeting card company in Burton, New Mexico wants to detern population is likely to buy a Valentine's Day card this year Part A: What is the population in this example? Part B: Did of the town's 12,500 citizens are key to buy a Valentine's Day card. Last year, 80% of who bought one or these cards last year and concluded that 65% of the buyer the town's citizens bought a Valentine's Day card. The company surveyed 400 citizens who bought one of these cards last year and con ehow many the company sample enough people to obtain a 95% confidence level with a 5.0% margin of error? Use the Reference Sheet for z scores and sample Sizes to complete this question. Select one answer for Part A, and select one answer that is completely correct for Part 8 B: Yes, the company surveyed enough people to obtain the desired confidence level and margin of error OB: No, the company needed to survey approximately 750 people to obtain the desired confidence level and margin of error A: citizens of Burton OA: citizens of Burton who participated in the poll ximately 1300 people to obtain the desired confidence level and margin of error B: No, the company needed to survey approx A: citizens of Burton who bought a Valentine's Day card last year B: No, the company needed to survey approximately 1200 people to obtain the desired confidence level and margin of error. A: citizens of Burton who bought a Valentine's Day card last year and participated in the poll Activate 09

Explanation / Answer

Given the population of burton is 12500

Here the population is taken as citizens of burton.

Here only 80% of people bought card last year.

In these 400 people are surveyed

Calculating the margin error for 400 people for 95% confidence level

We get margin error of 5%.

Hence no of people surveyed are enough

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