FINAL PROJECT Interval Estimate Proportion of shoppers using resusable bags






Shoppers






Do you use resusable bags / recyclable bags?






Name






Professor Silberman






MAT 177: INTERVAL ESTIMATE PROJECT






Date

Question: What is the proportion of people in your area who use “reusable" bags when  grocery shopping instead of the usual plastic or paper bags provided by the grocery stores? 0.56

 The sample consist of 50 respondents of shoppers in a supermarket 28 affirmed that they use the reusable bags when grocery shopping and 22 stated they do not.

Collect a sample and use the data from the sample to estimate the proportion of all shoppers in your area who use reusable bags. Write a clear and concise report. Some decisions to make: Sample size? Sampling method? Which grocery stores? Best observation point: from the car or standing outside the store?  What days and times of day? Etc…

 

Report requirements: Type your name on top of the first page

a. At least two pages long, single spaced and with Arial font size 12. b. Check grammar, sentence structure and spelling. (Points will be deducted).

c. The calculator screens are same size as the ones shown and are incorporated in the text. d. Page Layout: 0.9” margins all around for calculator screens to fit properly.

NO LATE PROJECT ACCEPTED. LATE= ZERO

e.  Project must be typed (Points will be deducted)

f. Minimum confidence level you may use is 85%; Maximum error estimate is 8%.

g. There are 2 pages of questions to be discussed.

h. You must review this project at the writing center and make suggested changes; this is not optional.

 

Minimum Content:

1. Explain the difference between point estimate and interval estimate and explain the advantages of one over the other.

The point estimate is calculated from th...