You are conducting a test of independence for the claim that there is a relationship between favorite icecream flavor and gender. Use a significance level of .01.Vanilla Chocolate StrawberryMale 24Female 21Male1818The expected observations for this table would be (Round to 3 decimal places.)Vanilla Chocolate StrawberryFemale4426At the .01 significance level, what is the critical chi-square for this data? (Round to 3 decimal places.)X²c=What is the chi-square test-statistic for this data? (Round to 3 decimal places.)x²What can you conclude about Gender and Favorite Ice Cream Flavor?O Gender and Ice Cream Flavor are IndependentGender and Ice Cream Flavor are Dependent

We have to test the Hypothesis:H,0,:V/SH1: Gender and Ice Cream Flavors are dependent.Observed…

Answered: You are conducting a test of…

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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You volunteer some of your spare time to your local fire department and have been asked by an assistant chief to analyze data on firefighters who applied for promotion. The assistant chief wants to ensure that gender bias is not a concern in the promotion of firefighters. Shown below is data for 50 firefighters who applied for promotion and the results of a chi-square analysis of the data. Male Female Promoted 13 22 Not Promoted 10 5 Chi-Square Statistic 3.6845 P value 0.054919 What factors should the assistant chief consider in determining the presence of gender bias in firefighter promotion? Is the promotional status of recently promoted firefighters independent of their gender?
You volunteer some of your spare time to your local fire department and have been asked by an assistant chief to analyze data on firefighters who applied for promotion. The assistant chief wants to ensure that gender bias is not a concern in the promotion of firefighters. Shown below is data for 50 firefighters who applied for promotion and the results of a chi-square analysis of the data. Male Female Promoted 13 22 Not Promoted 10 5 Chi-Square Statistic 3.6845 P value 0.054919 Is the promotional status of recently promoted firefighters independent of their gender? What reasons should the assistant chief convey to the fire chief to justify the absence of gender bias in the most recent class of firefighters who were promoted?
Which of the following are the names commonly used for the variable Y in sample regression? 1. covariate variable 2. independent variable 3. predictor variable 4. Explained variable 5. Response variable 6. explanatory variable 7. Predicted variable 8. Dependent variable 9. Criterion variable
A manufacturer collected a sample of 56 bolts of cloth from a day's production. Each bolt is carefully inspected and the number of imperfections is recorded in the following table. According to the given table, mean is median is mode is (Round your answer to three decimal places if needed.) Number of imperfections 1 Number of bolts 39 9. 3 3. 2. 5.
Please find the mean, median and mode of the following data set. 71 79 84 84 88 90 91 93 95 98 mean (¯xx¯) = 87.3 median = 89 mode = 84 A new number, 262, is added to the data set above. Please find the new mean, median and mode of the new data set. mean (¯xx¯) = 103 median = 90 mode = 84 Which central tendency measure is most affected by the addition of the extreme observation? Mean
Choose the appropriate statistical test. When computing, be sure to round each answer as indicated. A dentist wonders if depression affects ratings of tooth pain. In the general population, using a scale of 1-10 with higher values indicating more pain, the average pain rating for patients with toothaches is 6.8. A sample of 30 patients that show high levels of depression have an average pain rating of 7.1 (variance 0.8). What should the dentist determine? 1. Calculate the estimated standard error. (round to 3 decimals). [st.error] 2. What is thet-obtained? (round to 3 decimals). 3. What is the t-cv? (exact value) 4. What is your conclusion? Only type "Reject" or Retain"
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A random sample of 13 men and 19 women in a college class reported their grade point averages (GPAS). A woman in the class says that she believes that college women tend to have higher GPAS than do college men. Does this sample support her claim? Histogram of HGPA Histogram al WGPA 13 20 25 10 as 125 Summary statistics for these data are: 2.898 0.583 Women 3.330 | 0.395 Men What is the test statistic? [Enter t score to 2 decimal places] * Your answer Create and interpret a 95% confidence interval. Enter the low value of confidence interval to four decimal places. Your answer Enter the high value of confidence interval to four decimal places. Your answer

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