/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q. 51 Assume H0:聽p聽=聽0.25 and Ha:聽... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 9: Q. 51 (page 539)

Assume H0:p=0.25 and Ha:p鈮�0.25. Is this a left-tailed, right-tailed, or two-tailed test?

Short Answer

Expert verified

A two-tailed test is used.

Step by step solution

01

Given information

H0:P=0.25Ha:P鈮�0.25

02

Explanation

The alternative hypothesis and the null hypothesis are written as follows:

H0:P=0.25Ha:P鈮�0.25

We can see from the alternative hypothesis that the test is for a value less than 0.25. This indication 鈮�indicates that the test is two-tailed.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

In 1955, Life Magazine reported that the 25year-old mother of three worked, on average, an 80 hour week. Recently,

many groups have been studying whether or not the women's movement has, in fact, resulted in an increase in the average

work week for women (combining employment and at-home work). Suppose a study was done to determine if the mean

work week has increased. 81women were surveyed with the following results. The sample mean was83the sample

standard deviation was ten. Does it appear that the mean work week has increased for women at the role="math" localid="1650381098713" 5%level?

You flip a coin and record whether it shows heads or tails. You know the probability of getting heads is 50%, but you

think it is less for this particular coin. What type of test would you use?

Driver error can be listed as the cause of approximately 54%of all fatal auto accidents, according to the American Automobile Association. Thirty randomly selected fatal accidents are examined, and it is determined that 14were caused by driver error. Using 伪=0.05, is the AAA proportion accurate?

A bottle of water is labeled as containing 16 fluid ounces of water. You believe it is less than that. What type of test would you use?

The mean throwing distance of a football for Marco, a high school freshman quarterback, is 40yards, with a standard deviation of two yards. The team coach tells Marco to adjust his grip to get more distance. The coach records the distances for 20throws. For the 20throws, Marco鈥檚 mean distance was 45yards. The coach thought the different grip helped Marco throw farther than 40yards. Conduct a hypothesis test using a preset 伪=0.05. Assume the throw distances for footballs are normal.

First, determine what type of test this is, set up the hypothesis test, find thep-value, sketch the graph, and state your conclusion.
See all solutions

Recommended explanations on Math Textbooks

Calculus

Read Explanation

Logic and Functions

Read Explanation

Statistics

Read Explanation

Geometry

Read Explanation

Discrete Mathematics

Read Explanation

Probability and Statistics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.