Answered: d. How many degrees of freedom are…

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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A researcher is trying to determine if nurses who complete a 12-week social activity program have increased levels of job satisfaction at the end of the program compared to when they started it. Which procedure should he use? O Independent samples t-test Repeated measures t-test ANOVA Matched samples t-test étv A O W MacBook Pro
The mode is the most common descriptive statistic and is simple to compute. A True B) False
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Consumer Reports did a survey of 1100 adults and found that 565 were unhappy that their food did not look like the picture in the menu. Use a 0.05 significance level to test the claim that the majority of adults are annoyed by food that does not look like the picture in the menu. What is the test statistic for this problem? TTTArial 3 (12pt) v T- E
3) Examine your t-test score in the paired samples t-test table. Is the p value significant? State in one to two sentences whether the test was significant and interpret this result.
ACT Scores Based on the Normal model (mean = 20.8 and standard deviation = 4.8), describing ACT scores for Kentucky high school seniors. a) what percent scores would you expect to be over 22 (minimum admission for most state schools except Kentucky State and Uni. of Kentucky)? Draw a picture. b) what percent of scores would you expect ot be below 17 (minimum for admission to the rest of the state schools not mentioned). Draw a picture 3) what act score represents the 90th percentile? Draw a picture.
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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The Open Syllabus Project What statistical analysis could be used to determine of the mean percentage of psychology readings assigned in the Midwest was significantly different than in all of the United States? Single-sample t-test In which of the following four categories does this situation fall? a. only scale variables b. nominal independent variables, scale dependent variable c. only nominal variables d. any ordinal variables (that cannot be treated as a nominal)
Below indicate whether the appropriate test would be an independent t-test, dependent t-test, One-way ANOVA, or z-test. A researcher wants to know if people find baby animals cuter than adult animals. All of the participants in a study are shown 10 pictures of baby animals and 10 pictures of adult animals. They are asked to rate (on a 1 to 10 scale) how cute they think each animal is.
Using the accompanying New Account Processing data, perform chi-square tests for independence to determine if certification is independent of gender and if certification is independent of having prior industry background. E Click the icon to view the New Account Processing data. Find the hypotheses for the chi-square test for independence to determine if certification is independent of gender. Họ H,: Perform the chi-square test for independence to determine if certification is independent of gender. Compute the chi-square statistic. (Type an integer or decimal rounded to two decimal places as needed.) Find the p-value. (Type an integer or decimal rounded to three decimal places as needed.) The p-value V the level of significance of 0.05. Therefore, V the null hypothesis and conclude that certification and gender are Find the hypotheses for the chi-square test for independence to determine if certification is independent of having prior industry background. Ho: H,: Perform the…
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d. How many degrees of freedom are there? e. If appropriate perform a test of independence, using the =0.05 level of significance. If not appropriate, explain why.