Winning team data were collected for teams in different sports, with the results given TI-83/84 PLUS in the table below. Use the TI-83/84 Plus results at a 0.05 level of significance to test the claim that home/visitor wins are independent of the sport. Test y = 4.404455946 P=0.2209725730 df - 3 Basketball Baseball Hockey Football Home team wins 117 53 53 70 Visiting team wins 75 43 42 } 33 V depend on the sport. the null hypothesis that home/visitor wins are independent of the sport. It appears that the home-field advantage

Winning team data were collected for teams in different sports, with the results given TI-83/84 PLUS in the table below. Use the TI-83/84 Plus results at a 0.05 level of significance to test the claim that home/visitor wins are independent of the sport. Test y = 4.404455946 P=0.2209725730 df - 3 Basketball Baseball Hockey Football Home team wins 117 53 53 70 Visiting team wins 75 43 42 } 33 V depend on the sport. the null hypothesis that home/visitor wins are independent of the sport. It appears that the home-field advantage

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 student surveyed a random sample of 301 students in her large college and collected the data in the table below, on the variables class year and favorite team sport. Perform a chi-square test to determine if the variables class year and favorite team sport are independent. Basketball Soccer Baseball/Softball Other Total Freshman 12 41 11 1 65 Sophomore 12 43 17 7 79 Junior 10 44 10 11 75 Senior 10 49 18 5 82 Total 44 177 56 24 301 What is the test statistic for the chi-squared test? (round to 3 dp) . The p-value for this test is . (If p-value <0.001, enter 0, otherwise report to 4 dp) Select the appropriate conclusion for this test at a significance level of α=0.05.A. Reject H0H0. We have significant evidence that class year and team sports are not independent.B. Fail to reject H0H0. We do not have significant evidence that class year and team sports are not independent.
Listed below are PSAT scores and SAT scores from prospective college applicants. The scores were reported by participants who responded to a request posted by the website talk.collegeconfidential.com. Does is appear the PSAT scores can predict SAT scores? On what do you base your answer? PSAT 183 207 167 207 197 142 193 176 SAT 2200 2040 1890 2380 2290 2070 2370 1980
Example 6.14 Convert the set of numbers 6, 7, 5, 10 and 12 into standard scores:
Research department of the Municipal hospital in Prampram collected the mass (kg) of patients :it visited the health facility on March, 2018. Below are the masses (kg) of 40 patients who visited •.r hospital for analysis: 55 70 57 73 55 59 64 72 60 48 58 54 69 51 63 78 75 64 65 57 71 78 76 62 49 66 62 76 61 63 63 76 52 76 71 61 53 56 67 71 a) Construct a frequency table for the data using class width of 5. b) Calculate the mean, median and the standard deviation of the mass of the distributior c) Construct the cumulative graph.
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The following frequency histogram presents the final grades of a random sample of 100 college students. What is the class width?
The types of raw materials used to construct stone tools found at an archaeological site are shown below. A random sample of 1486 stone tools were obtained from a current excavation site. Raw Material Regional Percent of Stone Tools Observed Number of Tools as Current excavation Site Basalt 61.3% 893 Obsidian 10.6% 165 Welded Tuff 11.4% 179 Pedernal chert 13.1% 198 Other 3.6% 51 (A) Find the value of the chi-square statistic for the sample. (Round the expected frequencies to at least three decimal places. Round the test statistic to three decimal places.)
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A SAT prep course claims to increase student scores by more than 60 points, on average. To test this claim, 9 students who have previously taken the SAT are randomly chosen to take the prep course. Their SAT scores before and after completing the prep course are listed in the following table. Test the claim at the 0.01 level of significance. SAT Scores 1170 1200 | 1040 | 1280 || 1450 1470 | 1500 Before Prep Course | 1010 980 After Prep Course 1100 | 1260 1190 | 1280 | 1170 | 1370 1440 1500 1520 280 | 20 80 | 130 90 Difference 90 10 30 20
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