A survey of adults was conducted in which the subjects were asked whether they agree that the government should prohibit smoking in public places. In addition, each subject was asked how many people lived in their household. The results are summarized in the following contingency table. Use a 0.1 significance level to test for independence between the two variables.

A survey of adults was conducted in which the subjects were asked whether they agree that the government should prohibit smoking in public places. In addition, each subject was asked how many people lived in their household. The results are summarized in the following contingency table. Use a 0.1 significance level to test for independence between the two variables.

Name: A survey of adults was conducted in which the subjects were asked whe
Uploaded: 2024-03-20T07:06:27.000Z
Channel: Bartleby
Description: A survey of adults was conducted in which the subjects were asked whether they agree that thegovernment should prohibit smoking in public places. In addition, each subject was asked how manypeople lived in their household. The results are summarized

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 13PT

See similar textbooks

Similar questions

A random sample of 76 statistics students were asked about their latest test score (pass or failand whether they studied for the test or not. The following contingency table gives the two-way classification of their responses .
A random sample of 2,000 individuals from three different cities was asked whether they owned a foreign or a domestic car. The following contingency table shows the results of the survey. City Type of Car Detroit Atlanta Denver Total Domestic 80 200 520 800 Foreign 120 600 480 1,200 Total 200 800 1,000 2,000 At α = .05, test to determine if the type of car purchased is independent of the city in which the purchasers live by providing answers to the following:
Ashton surveyed the students in his neighborhood and obtained the following contingency table that summarizes the school enrollment by level and type:
The City of South Lake Tahoe, CA, has an Asian population of 1,419 people, out of a total population of 23,609. Suppose that a survey of 1,419 self-reported Asians in the Manhattan, NY, area yielded the data in the table below. Conduct a goodness-of-fit test to determine if the self-reported sub-groups of Asians in the Manhattan area fit that of the Lake Tahoe area. Race Lake Tahoe Frequency Manhattan Frequency Asian Indian 131 174 Chinese 118 557 Filipino 1045 518 Japanese 80 54 Korean 12 29 Vietnamese 9 21 Other 24 66 H0 : _______ Ha : _______ What are the degrees of freedom? State the distribution to use for the test. What is the test statistic? What is the p-value? In one to two complete sentences, explain what the p-value means for this problem. Use the previous information to sketch a picture of this situation. Clearly label and scale the horizontal axis and shade the region(s) corresponding…
A Pew Research study conducted in 2017 found that approximately 75% of Americans believe that robots and computers might one day do many of the jobs currently done by people.† Suppose we have the following data collected from nurses, tax auditors, and fast-food workers in which a higher score means the person feels his or her job is more likely to be automated. Nurse TaxAuditor Fast-FoodWorker 3 4 5 4 5 8 6 4 6 2 4 8 3 6 5 3 3 6 4 5 6 5 3 4 (a) Use ? = 0.05 to test for differences in the belief that a person's job is likely to be automated for the three professions. State the null and alternative hypotheses. H0: μNurse = μTax auditor = μFast-food worker Ha: μNurse ≠ μTax auditor ≠ μFast-food worker H0: At least two of the population means are equal. Ha: At least two of the population means are different. H0: Not all the population means are equal. Ha: μNurse = μTax auditor = μFast-food worker H0: μNurse = μTax auditor = μFast-food worker Ha:…
Due to COVID19, airlines cut services, such as meals and snacks during flights, and started charging for luggage. However, they are still concerned about service. A group of four carriers hired Denny's Marketing Research Inc. to survey passengers regarding their level of satisfaction with a recent flight. The survey included questions on ticketing, boarding, in-flight service, baggage handling, pilot communication, and so forth. Twenty-five questions offered a range of possible answers: excellent, good, fair, or poor. A response of excellent was given a score of 4, good a 3, fair a 2, and poor a 1. These responses were then totaled, so the total score was an indication of the satisfaction with the flight. The greater the score, the higher the level of satisfaction with the service. The highest possible score was 100. Denny randomly selected and surveyed passengers from the four airlines. Below is the sample information. Is there a difference in the mean satisfaction level among the…
A Pew Research study conducted in 2017 found that approximately 75% of Americans believe that robots and computers might one day do many of the jobs currently done by people.† Suppose we have the following data collected from nurses, tax auditors, and fast-food workers in which a higher score means the person feels his or her job is more likely to be automated. Nurse TaxAuditor Fast-FoodWorker 4 4 5 4 5 8 5 6 6 2 3 8 2 6 5 3 3 6 4 5 5 6 2 5 (a)Use ? = 0.05 to test for differences in the belief that a person's job is likely to be automated for the three professions. State the null and alternative hypotheses. 1. H0: μNurse = μTax auditor = μFast-food worker Ha: Not all the population means are equal. 2. H0: Not all the population means are equal. Ha: μNurse = μTax auditor = μFast-food worker 3. H0: At least two of the population means are equal. Ha: At least two of the population means are different. 4. H0: μNurse ≠ μTax auditor ≠ μFast-food worker…
The City of South Lake Tahoe, CA, has an Asian population of 1,419 people, out of a total population of 23,609. Suppose that a survey of 1,419 self-reported Asians in the Manhattan, NY, area yielded the data in Table 11.38. Conduct a goodness-of-fit test to determine if the self-reported sub-groups of Asians in the Manhattan area fit that of the Lake Tahoe area. Race Lake Tahoe Frequency Manhattan Frequency Asian Indian 131 174 Chinese 118 557 Filipino 1,045 518 Japanese 80 54 Korean 12 29 Vietnamese 9 21 Other 24 66
A marketing company is considering two different versions of a potential ad, and is specifically interested in whether gender has any bearing on whether people like the ad or not. They conduct a focus group consisting of 200 people, and randomly assign participants to view either version A or version B. Afterwards, they recorded the number of people who had a favorable opinion of each version, as shown below.Version A Opinion total Favorable Unfavorable Female 29 21 50 Male 31 19 50 Total 60 40 100 Version B Opinion total Favorable Unfavorable Female 41 9 50 Male 19 31 50 Total 60 40 100 Which version would have the smaller p-value? A. Version A B. Version B (d) Which of these data sets satisfy the sample size condition for inference? A. Only Version A satisfies the condition, because Version B has some observed counts that are less than 10. B. Both Version A and Version B satisfy the condition, because the expected counts are all larger than 5.…
A marketing company is considering two different versions of a potential ad, and is specifically interested in whether gender has any bearing on whether people like the ad or not. They conduct a focus group consisting of 200 people, and randomly assign participants to view either version A or version B. Afterwards, they recorded the number of people who had a favorable opinion of each version, as shown below.Version A Opinion total Favorable Unfavorable Female 29 21 50 Male 31 19 50 Total 60 40 100 Version B Opinion total Favorable Unfavorable Female 41 9 50 Male 19 31 50 Total 60 40 100 (a) Which type of test should the marketing company do? A. Chi-squared goodness of fit test B. Chi-squared test of independence (b) Compute the expected counts for both tables:(i) Females with a favorable opinion, Version A: Version B: (ii) Females with an unfavorable opinion, Version A: Version B: (c) Comparing these expected counts with the observed counts…
The Consumer Reports Restaurant Customer Satisfaction Survey is based upon 148,599 visits to full-service restaurant chains. One of the variables in the study is meal price, the average amount paid per person for dinner and drinks, minus the tip. Suppose a reporter for the Sun Coast Times thought that it would be of interest to her readers to conduct a similar study for restaurants located on the Grand Strand section in Myrtle Beach, South Carolina. The reporter selected a sample of 8 seafood restaurants, 8 Italian restaurants, and 8 steakhouses. The data in Sheet 7 show the meal prices ($) obtained for the 24 restaurants sampled. Use alpha = 0.05 to test whether there is a significant difference among the mean meal price for the three types of restaurants. Sheet 7 Italian Seafood Steakhouse 12 16 24 13 18 19 15 17 23 17 26 25 18 23 21 20 15 22 17 19 27 24 18 31 Select one: a) Fstat = 7.33 > Fcrit = 3.47, insufficient evidence to reject the null…
Based on the results, does it appear that men and women may have equal success in challenging calls?