Elementary Statistics: A Step By Step Approach
10th Edition
ISBN: 9781259755330
Author: Allan G. Bluman
Publisher: McGraw-Hill Education
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Chapter 11, Problem 8CQ
To determine
To find: Which is an important assumption for the chi-square test.
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if the results of a study using the chi-square tests are summarized as
x2 ( 1,N=360) = 10.00,p<.01,then you would know that it was a what study?
Answer the following True / Flase question:
1. To conduct a chi-square test of independence, we set up a 2-dimensional table called a two-way table (also called a contingency table, or a two-way classification table).
a. True
b. False
15. For each of the following examples, state whether the chi-square goodness-of-fit or the chi-square test for independence is appropriate.
15d. A public health employee evaluates the proportion of lean, healthy, overweight, and obese students at a local college.
A. goodness of fit test
B. test for independence
Chapter 11 Solutions
Elementary Statistics: A Step By Step Approach
Ch. 11.1 - Skittles Color Distribution MM/Mars, the makers of...Ch. 11.1 - How does the goodness-of-fit test differ from the...Ch. 11.1 - How are the degrees of freedom computed for the...Ch. 11.1 - How are the expected values computed for the...Ch. 11.1 - When the expected frequency is less than 5 for a...Ch. 11.1 - For Exercises 5 through 18, perform these steps....Ch. 11.1 - How are the null and alternative hypotheses stated...Ch. 11.1 - For Exercises 5 through 18, perform these steps....Ch. 11.1 - For Exercises 5 through 18, perform these steps....Ch. 11.1 - For Exercises 5 through 18, perform these steps....
Ch. 11.1 - For Exercises 5 through 18, perform these steps....Ch. 11.1 - For Exercises 5 through 18, perform these steps....Ch. 11.1 - For Exercises 5 through 18, perform these steps....Ch. 11.1 - For Exercises 5 through 18, perform these steps....Ch. 11.1 - For Exercises 5 through 18, perform these steps....Ch. 11.1 - For Exercises 5 through 18, perform these steps....Ch. 11.1 - For Exercises 5 through 18, perform these steps....Ch. 11.1 - Prob. 17ECh. 11.1 - For Exercises 5 through 18, perform these steps....Ch. 11.1 - Tossing Coins Three coins are tossed 72 times, and...Ch. 11.1 - Prob. 20ECCh. 11.2 - Satellite Dishes in Restricted Areas The Senate is...Ch. 11.2 - Prob. 1ECh. 11.2 - How are the degrees of freedom computed for the...Ch. 11.2 - Generally, how would the null and alternative...Ch. 11.2 - What is the name of the table used in the...Ch. 11.2 - How are the expected values computed for each cell...Ch. 11.2 - How are the null and alternative hypotheses stated...Ch. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - Prob. 13ECh. 11.2 - Prob. 14ECh. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - Prob. 17ECh. 11.2 - Prob. 18ECh. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - Prob. 21ECh. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - Prob. 25ECh. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - Prob. 27ECh. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - Prob. 29ECh. 11.2 - For Exercises 7 through 31, perform the following...Ch. 11.2 - Prob. 31ECh. 11.2 - Prob. 32ECCh. 11.2 - Prob. 33ECCh. 11.2 - When the chi-square test value is significant and...Ch. 11 - For Exercises 1 through 10, follow these steps. a....Ch. 11 - Prob. 11.1.2RECh. 11 - Prob. 11.1.3RECh. 11 - Prob. 11.1.4RECh. 11 - Prob. 11.2.5RECh. 11 - Prob. 11.2.6RECh. 11 - Prob. 11.2.7RECh. 11 - Prob. 11.2.8RECh. 11 - Prob. 11.2.9RECh. 11 - Prob. 11.2.10RECh. 11 - The Data Bunk is located in Appendix B, or on the...Ch. 11 - Prob. 2DACh. 11 - Prob. 3DACh. 11 - Prob. 1CQCh. 11 - Determine whether each statement is true or false....Ch. 11 - Prob. 3CQCh. 11 - Prob. 4CQCh. 11 - Prob. 5CQCh. 11 - Prob. 6CQCh. 11 - Complete the following statements with the best...Ch. 11 - Prob. 8CQCh. 11 - Prob. 9CQCh. 11 - Prob. 10CQCh. 11 - Prob. 11CQCh. 11 - Prob. 12CQCh. 11 - Prob. 13CQCh. 11 - Prob. 14CQCh. 11 - Prob. 15CQCh. 11 - Prob. 16CQCh. 11 - Prob. 17CQCh. 11 - Prob. 18CQCh. 11 - Prob. 19CQ
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- Which of the following are the assumptions that must be met when running either chi-square equation? a.observations must be independent and expected frequencies must be larger than five b.observations must be independent and data must be normally distributed c.data must be normally distributed and expected frequencies must be larger than five d.data must be normally distributed and categories have to be homogenousarrow_forwardWhich of the following statements is true about chi-square tests? A. A large chi-square test statistic results in a large p-value. B. A large p-value means that there is a good chance that the relationship is statistically significant. C. If the two variables are not related in the population, then less than 5% of the samples you could ever take would give you a test statistic of 3.84 or larger. D. All of the above.arrow_forwardIf the chi-square test is x2 (4, N=71) = 10, if the alpha is .05, then we ___.arrow_forward
- Answer the following with the red hightlights. Use the second image to determine the test procedure and p-valuearrow_forwardGiven the following hypotheses, identify the type and direction whichapplies to each. Write your answer in the right column.arrow_forwardFor each of the following tobs values, determine the highest level ofsignificance associated with the decision taken. NB please show calculations tbs df decision 4.000 17 Reject Ha for a two-tailed test 1.200 120 Reject Ha for a one-tailed test -2.666 16 Reject for both one-tailed and two-tailed testarrow_forward
- The mean weight of female nurses working at a local hospital is equal to 150 lbs. Express the null and alternative hypotheses in symbolic form for this claim.H0:μHa:μUse the following codes to enter the following symbols: ≥≥ enter >= ≤≤ enter <= ≠≠ enter != *please follow the codes to enter symbol*arrow_forwardUnder what condition is the interpretation of Pearson's r and Cramer's V the same? a. Pearson's r and Cramer's V are never interpreted in the same way b. when a chi-square analysis is conducted with higher-order data c. when the null hypothesis is rejected d. when dfRC = 1arrow_forwardGiven the results of the t-test (in the picture), which of the following is NOT correct?arrow_forward
- Are the following results significant at α=.01? F(2,27) =19.56, p=.001 .Yes .Noarrow_forwardWith Ha : μ << 121you obtain a test statistic of z=−2.385z=-2.385. Find the p-value accurate to 4 decimal places.arrow_forwardIn which of the following situations should the chi-square Test for Goodness-of-Fit be used? Select the correct answer below: An online research company puts out a survey asking people two questions. First, it asks whether they buy groceries online. Second, it asks whether they own a car or not. The data are collected and recorded in a contingency table. The company wants to determine if there is a relationship between buying groceries online and car ownership. A researcher is trying to determine if the amount of time children spend watching television has the same distribution for boys and for girls. She surveys a random sample of families and records the distribution of time spent watching television for each gender. She wants to determine if the distributions are the same. A professor is trying to decide if her students randomly guessed on a certain multiple choice question or if they had some idea of the correct answer. She records the number of students that…arrow_forward
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