Provide an appropriate response.A researcher wishes to determine whetherthere is a difference in the average age ofelementary school, high school, and communitycollege teachers. Teachers are randomlyselected. Their ages are recorded below. Findthe test statistic F to test the claim that there isno difference in the average age of each group.Elementary Teachers High School Teachers Community College Teachers383636414742312328272.537522.9134.3123.189O 2.5170 45 45 139 3561 Preliminary data analyses indicate that it isreasonable to consider the assumptions forone-way ANOVA satisfied. Use Minitab toperform the required hypothesis test using thep-value approach.The data below represent the weight losses forpeople on three different exercise programs.Exercise A Exercise B Exercise C5.84.34.96.21.15.87.88.11.27.92.58.87.39.85.1At the 1% significance level, does it appear thata difference exists in the true mean weight lossproduced by the three exercise programs?Op = 0.264Fail to reject the claim of equal meansOP=0.0024Reject the claim of equal means

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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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The number of credits being taken by a sample of 13 full-time college students are listed below. Find the mean, median, and mode of the data, if possible. If any measure cannot be found or does not represent the center of the data, explain why. 88 11 11 8 9 77777 7 10 TMV UIG TIHVUG. VGIGLIUIG COITGGL GITVIGG VGIVW aiIU, II TIGL655aiy, mI MUIG QISWGI VUX LU Compitic yoUr GilviG. O A. The mode(s) is/are (Type an integer or decimal rounded to one decimal place as needed. Use a comma to separate answers as needed.) O B. The data set does not have a mode. Does (Do) the mode(s) represent the center of the data? O A. The mode(s) represent(s) the center. O B. The mode(s) does (do) not represent the center because it (one) is the largest data value. O C. The mode(s) does (do) not represent the center because it (one) is the smallest data value. O D. The mode(s) does (do) not represent the center because it (they) is (are) not a data value. O E. The data set does not have a mode.
Examples of population or sample? A. The types of cars driven by ur classmates B. The wt of five out of 33 tomatoes at the store C. A recent poll of 100 students in the US on studying habits
Here is a set of sample data. 43 75 64 40 50 11 91 99 44 82 39 25 35 86 60 2 27 83 45 65 1 93 88 10 Base on the data above, identify the 5 number summary
Here is a set of sample data. 76 77 55 35 58 6 25 37 38 85 45 54 98 78 84 31 93 15 88 52 83 7 90 71 60 66 14 17 Base on the data above, identify the 5 number summary
How is a sample related to a population? Choose the correct answer below. OA. A sample is a subset of a population. OB. A sample is a numerical measure that describes a sample characteristic. OC. A sample is the collection of all outcomes, responses, measurements, or counts.
A sample of prices for memory cards is given below: 244 194 172 184 288 210 244 234 Find the mode and the mean for this sample. If there is not mode, enter "NONE". Sample Mode Sample Mean
Chapter 13 A researcher wants to determine whether there is a difference in the mean age of community college prófessors, publiC university professors, and private university professors. Professors from each were randomly selected across America and their ages were recorded. The data is given below. Test whether there is a difference in the mean ages. Find the P-Value. Community College Public University Private University 23 38 45 28 36 45 27 41 39 37 47 61 52 42 36 25 31 35 O 0.3571 O 0.2357 O 0.1142 O 0.2289
Indicate the statistical test you would conduct. Respondents in a survey of 1,000 households were asked about their travel history. Specifically, they were asked how often they have been to Europe in the past five years (using a ratio scale). People were also classified by interest type (art-lovers, food-lovers, or sports-lovers). The question is whether interest type influences travel history. Two-sample t-test Paired sample t-test One-way ANOVA none of those QUESTION 6 What is the corresponing alternative hypothesis for the scenario in question #5? The three interest types do not differ with regard to the number of times they have been to Europe in the last five years. Interest type and travel to Europe are not related. The number of times people have been to Europe does not depend on interest type. The three interest types differ with regard to the number of times they have been to Europe in the last five years.
Is there an association between hair color and body type? The table below shows the results of a researcher's observations of randomly selected people. Frequencies of Hair Colors for Various Body Types Blonde Brunette Red Head 71 80 96 108 55 115 46 91 Short and Slender Short and Pudgy Tall and Slender Tall and Heavy What can be concluded at the o= 0.01 significance level? 53 74 69 63
Healthy men aged 21–35 were randomly assigned to one of two groups: half received 0.82 gram of alcohol per kilogram of body weight; half received a placebo. Participants were then given 30 minutes to read up to 34 pages of Tolstoy’s War and Peace (beginning at Chapter 1, with each page containing approximately 22 lines of text). Every two to four minutes, participants were prompted to indicate whether they were “zoning out.” The proportion of times participants indicated they were zoning out was recorded for each subject. The following table summarizes data on the proportion of episodes of zoning out. Group n S Alcohol 25 0.25 0.05 Placebo 25 0.12 0.03 Calculate a 95% confidence interval for the mean difference between Alcohol and placebo groups.
Usually, the F-test is used to test the differences between A. a sample and a population mean. B. two independent means. C. two dependent means. D. three or more means. A B D Answer

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