Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

According to a study conducted by a statistical organization, the proportion of people who are satisfied with the way things are going in their lives

image text in transcribed
According to a study conducted by a statistical organization, the proportion of people who are satisfied with the way things are going in their lives is 0.80. Suppose that a random sample of 100 people is obtained. Complete parts (a) through (e) below. I le Sailipie piupuluvil p Is a lanluvIll vallavie because ure value vip valles IVIII sailIple I Sample. The vailability Is Que I Tie lact ulat people may IIUL be responding to the question truthfully. O C. The sample proportion p is a random variable because the value of p represents a random person included in the sample. The variability is due to the fact that different people feel differently regarding their satisfaction. D. The sample proportion p is a random variable because the value of p varies from sample to sample. The variability is due to the fact that different people feel differently regarding their satisfaction. (c) Describe the sampling distribution of p, the proportion of people who are satisfied with the way things are going in their life. Be sure to verify the model requirements. Since the sample size is no more than 5% of the population size and np(1 - p) = 16 2 10, the distribution of p is approximately normal with us = 0.80 and 6A = 0.04 (Round to three decimal places as needed.) (d) In the sample obtained in part (a), what is the probability that the proportion who are satisfied with the way things are going in their life exceeds 0.82? The probability that the proportion who are satisfied with the way things are going in their life exceeds 0.82 is 0.3085 (Round to four decimal places as needed.) (e) Using the distribution from part (c), would it be unusual for a survey of 100 people to reveal that 74 or fewer people in the sample are satisfied with their lives? The probability that 74 or fewer people in the sample are satisfied is , which unusual because this probability less than (Round to four decimal places as needed.) Help me solve this Video Get more help - Clear all Check answer Type here to search C O C

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

Concepts In Complex Analysis

Authors: Rashmi Rana

1st Edition

9353146461, 9789353146467

More Books

Students also viewed these Mathematics questions