Please review the SPSS output below. The output helps me to understand whether Blacks and Whites differ with respect to theaverage number of children they have ever had. Then answer the questions beneath the output. You may provide youranswers directly in the space provide or upload a document with your response. PLEASE BE AWARE THAT I WILL NOT BEABLE TO OPEN ANY DOCUMENTS THAT ARE HEICGroup StatisticsWHAT IS RS RACE 1STMENTIONWHITEStd. ErrorMeanMeanStd. DevlationNUMBER OF CHILDREN10111.811.560049BLACK OR AFRICANAMERICAN1921.841.748126Indgendent Sanplis TestLavent's TiS Eq.ahoLowenUpperEqualvaranpes252.12a.What kind of statistical test is this?b.Is Levene's test for homogeneity of variances statistically significant? How do you know?C.Which value for t do we interpret aCcording to this test? How do you know?d.Is the overalI test statistically significant? How do you know?e.What would the null and research hypotheses be for this statistical test?f.If we were to calculate this test by hand, what is the critical value we would need to equal or exceed in order to findstatistical significance at an alpha of .05?g.Use the space below to discuss your interpretation of the results using professional (APA) format. The format youshould use is the format we used in step five of the hypothesis testing procedure.

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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 interested in whether there is a difference between male and female college students in the amount of time spent doing volunteer work for the last 6 months. The researcher gathers a random sample of college students. The amount of time volunteering is measured in hours, which is an interval level-ratio and is normally distributed. Which statistical test should be used to analyze this data? a. Multiple regression b. paired samples t-test c. independent groups t-test d. Factorial ANOVA
Mean 1001 206 Levene's Test for Equality of Variances Sig. 15.578 <.001 .510 1.402 df Sig. (2-tailed) 1205 .014 261.832 035 -3.168 -3.168 Std. Error Difference 3. Do Whites spend a significantly different amount of time on the internet (WWWHR) than Blacks? Group Statistics Std. Error Race of respondent N Std. Deviation Mean Www.hours per week WHITE 13.29) (16.124) BLACK 16.46 20.120 Independent Samples Test t-test for Equality of Means Mean t Difference Www hours per week -2.455 Equal variances assumed -2.124 Equal variances not assumed 1.291 1.492 95% Confidence Interval of the Difference Lower Upper -5.701 -6.106 -.636 -.231
3. Which of the following are practical ways to assess equal variances of the residuals? Select all that apply a. Hartley's F-max test (provided data look normal and sample sizes are same); b. Bartlett's test (provided normality seems to hold; sample sizes do not have to be the same); c. Levene's test (normality and equal sample sizes aren't needed) d. Boxplots of residuals, or boxplots of standardized residuals, or boxplots of the original data. e. Boxplots of cats and dogs.
In an experiment to determine which of the three different missile systems is preferable, the propellant burning rate is measured. The data, after coding, are given in the following table. Use the Kruskal-Wallis Test and a significance level of alpha a = 0.05 to test the hypothesis that the propellent burning rates are the same for the three missile systems. A В D Missile System 1 2 3 24 23.2 18.4 16.7 19.8 19.8 22.8 18.1 17.3 19.8 17.6 17.3 18.9 20.2 19.7 17.8 18.9 18.8 19.3
I need help with parts c-e
7
The Tukey-Kramer procedure is used for which of the following purposes?A. Test for differences in pairwise means.B. Test for normality of residuals.C. Test for independence of errors.D. Test for homogeneity of variances.
The weekly expenditure on groceries of a random sample of 100 family households was recorded. It was estimated that the mean expenditure was approximately $240. With rising interest rates and petrol prices, it was anticipated that grocery expenditure might decrease. Which hypothesis test would you use to test this claim? 1.One tailed, one sample t-test 2.Two tailed, one sample t-test 3.One tailed, z-test 4.One-tailed Paired Samples t-test 5.Chi Square
An analysis of variance produces SSbetween = 30, SSwithin = 60, and an F-ratio with df = 2, 15. For this analysis, what is the F-ratio? Question 14 options: 30/60 = 0.50 60/30 = 2.00 15/4 = 3.75 4/15 = 0.27
Histograms of random sample data are often used as an indication of the shape of the underlying population distribution. The histograms on the next page are based on random samples of size 30,50 and 100 from the same population. a. Using the midpoint labels of the three histograms, what would you say about the estimated range of population data from smallest to largest? Does the bulk of the data seem to be between 8 and 12 all in three histograms? b. The population distribution from which the samples were drawn is symmetric and mound shaped, with the top of the mound at 10,95% of the data between 8 and 12, and 99.7% of data between 7 and 13. How well does each histogram reflect these characteristics?
Answer the following questions on the F test statistic. Complete parts (a) through (d) below. a. If s represents the larger of two sample variances, can the F test statistic ever be less than 1? 2 $2 OA. Yes, because the ratio will always be less than 1. $₁ O B. No, because the ratio O C. No, because the ratio will always be greater than 1. 2 S₁ 2 1 will always be greater than 1. $2 2 1 O D. Yes, because the ratio will always be less than 1. $2
Calculate the variance of the following data assume sample data: YOU MUST USE TWO DECIMAL PLACES FOR THE MEAN THROUGHOUT YOUR CALCULATION Tigers Frequency 1 4 9 8 CO 13 8 CO 17 21 10 9 ANSWER INSTRUCTION: Round your answer to two decimal places then enter them in the answer box.

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a. What kind of statistical test is this? b. Is Levene's test for homogeneity of variances statistically significant? How do you know? Which value fort do we interpret according to this test? How do you know? C.