Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding. In a marketing survey,

For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.

In a marketing survey, a random sample of988supermarket shoppers revealed that262always stock up on an item when they find that item at a real bargain price.

(a)Letprepresent the proportion of all supermarket shoppers who always stock up on an item when they find a real bargain.Find a point estimate forp. (Enter a number. Round your answer to four decimal places.)

(b)Find a 95% confidence interval forp. (For each answer, enter a number. Round your answers to three decimal places.)

lower limit

upper limit

Give a brief explanation of the meaning of the interval.

We are 95% confident that the true proportion of shoppers who stock up on bargains falls outside this interval.

We are 95% confident that the true proportion of shoppers who stock up on bargains falls within this interval.

We are 5% confident that the true proportion of shoppers who stock up on bargains falls above this interval.

We are 5% confident that the true proportion of shoppers who stock up on bargains falls within this interval.

(c)As a news writer, how would you report the survey results on the percentage of supermarket shoppers who stock up on items when they find the item is a real bargain?

Reportpalong with the margin of error.

Report the confidence interval.

Report the margin of error.

Reportp.

What is the margin of error based on a 95% confidence interval? (Enter a number. Round your answer to three decimal places.)

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

A First Course In Differential Equations

Authors: Kumari Vandana

1st Edition

9353147123, 9789353147129

More Books

Students also viewed these Mathematics questions

Question

Th eir solution was to give me a long-distance number to call.

Answered: 1 week ago