3. Following are the responses to the question "How many hours do you study before amajor mathematics test ? "652753747Use the sign test to test the hypothesis at the (0:05 level of significance that the median number of hoursu student studies before a mathematics test is 3.

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Answered: 3. Following are the responses to the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The Bureau of Labor Statistics reports that the official unemployment rate for Black people was 10.4% and 4.7% for White people in February 2015. Select all correct answers for this question. O The samples of white and black people are independent. The explanatory variable is the unemployment rate. The response variable is the unemployment rate. The response variable is race.
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1.6 How would you rank cities? Various organizations rank cities and produce lists of the 10 or the 100 best cities, based on various measures. Create a list of criteria that you would use to rank cities. Include at least eight variables and give reasons for your choices. Say whether each variable is quantitative or categorical.
Which summary statement best reflects the findings of the hypothesis test above. O The sample data suggests that happiness and technology use are dependent. The sample data suggests that the mean happiness scores of the the 3 technology groups are different. The sample data suggests that the mean happiness scores of the the 3 technology groups are not different. The sample data suggests that the proportion of happiness is the same for all technology groups.
- Attendance and Grades Read the following on attendance and grades, and answer the questions in the discussion board. A study conducted at Manatee Community College revealed that students who attended class 95 to 100% of the time usually received an A in the class. Students who attended class 80 to 90% of the time usually received a B or C in the class. Students who attended class less than 80% of the time usually received a D or an F or eventually withdrew from the class. Based on this information, attendance and grades are related. The more you attend class, the more likely you will receive a higher grade. If you improve your attendance, your grades will probably improve. Many factors affect your grade in a course. One factor that you have considerable control over is attendance. You can increase your opportunities for learning by attending class more often. a. What are the variables under study? b. Are descriptive, inferential, or both types of statistics used? c. What is the…
K A poll was conducted to investigate opinions about global warming. The respondents who answered yes when asked if there is solid evidence that the earth is getting warmer were then asked to select a cause of global warming. The results are given in the accompanying data table. Use a 0.01 significance level to test the claim that the sex of the respondent is independent of the choice for the cause of global warming. Do men and women appear to agree, or is there a substantial difference? 75 01 51 16 84 31 37 90 80 Male Female Click here to view the chi-square distribution table. 00 47 Human activity Natural patterns Don't know 58 56 Ho: H₁: 321 298 Identify the null and alternative hypotheses. The sex of the respondent Compute the test statistic. 163 164 (Round to three decimal places as needed.). Find the critical value(s). Area to the Right of the critical value Chi-square distribution table 0.95 0.004 0.103 0.352 0.711 1.145 1.635 2.167 2.733 3.325 3.940 and and 0.90 0.016 0.211…
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Anxiety when taking math tests is a common problem. If I want to study this issue, which of the following describes the best way to find out the proportion of students who suffer from math anxiety? O Select students who have scored poorly in math classes at CCBC. Poll students as they enter campus on a randomly selected day. Talk to students randomly pulled from the list of all students. Interview students who have finals on the first day of finals week.
hypothesis testing is the topic

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3. Following are the responses to the question "How many hours do you study before a major mathematics test ?" 2 7 5 3 4 7 Use the sign test to test the hypothesis at the (0:05 level of significance that the median number of hours u student studies before a mathematics test is 3.