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Chapter 5: Q2CQQ (page 195)

Interpreting CIWrite a brief statement that correctly interprets the confidence intervalgiven in Exercise 1 “Celebrities and the Law.”

Short Answer

Expert verified

There is 95% confidence that the limits of 0.692 and 0.748 contain the true value of the proportion of adults in the population who say that the law goes easy on celebrities.

Step by step solution

01

Given information

The 95% confidence interval estimate of the proportion of adults who say that the law goes easy on celebrities is 0.692<p<0.748.

02

Interpret the confidence interval

The confidence interval can be used to determine the estimated range of lower and upper limits in which the actualparameter value will be likely to fall at the defined confidence level.

From the confidence interval, thefollowing can be concluded:

Youare 95% of the time confident that the actual value of the proportion of adults in the population who say that the law goes easy on celebrities will lie between the limits of 0.692 and 0.748.

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Most popular questions from this chapter

In Exercises 5.16-5.26, express your probability answers as a decimal rounded to three places.

Graduate Science Students. According to Survey of Graduate Science Engineering Students and Postdoctorates, published by the U.S. National Science Foundation, the distribution of graduate science students in doctorate-granting institutions is as follows.

Frequencies are in thousands. Note: Earth sciences include atmospheric and ocean sciences as well.

A graduate science student who is attending a doctorate-granting institution is selected at random. Determine the probability that the field of the student obtained is

(a) psychology.

(b) physical or social science.

(c) not computer science.

What does it mean for two or more events to be mutually exclusive?

Cyber Affair. As found in USA TODAY, results of a survey byInternational Communications Researchrevealed that roughly 75% of adult women believe that a romantic relationship over the Internet while in an exclusive relationship in the real world is cheating. What are the odds against randomly selecting an adult female Internet user who believes that having a " cyber affair " is cheating?

What is the binomial distribution?

In each of Exercises 5.167-5.172, we have provided the number of trials and success probability for Bernoulli trials. LetX denote the total number of successes. Determine the required probabilities by using

(a) the binomial probability formula, Formula 5.4 on page 236. Round your probability answers to three decimal places.

(b) TableVII in AppendixA. Compare your answer here to that in part (a).

n=5,p=0.6,P(X=3)
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