Researchers collected data on the numbers of hospital admissions resulting from motor vehicle crashes, and results are given below for Fridays on the 6th of a monthand Fridays on the following 13th of the same month. Use a 0.05 significance level to test the claim that when the 13th day of a month falls on a Friday, the numbers ofhospital admissions from motor vehicle crashes are not affected.Friday the 6th:Friday the 13th:101212151315116.11coleWhat are the hypotheses for this test?Let g be theline Ho: Pdmean of the differencesin the numbers of hospital admissions resulting from motor vehicle crashes for the population of all pairs of data.%3DH Pa 0Find the value of the test statistic.(Round to three decimal places as needed.)t3=Find the value of the test statistic.(Round to three decimal places as needed.)Identity the critical value(s). Select the correct choice below and fill the answer box within your choice.(Round to three decimal places as neered.)A. The critical values are t+OB. The critical value is t=Press Continue to see more,

The null and the alternative hypotheses are, H0: µd=0 H1: µd≠0 The mean of the differences is,…

Answered: Researchers collected data on the…

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 study showed that about 21% of adults go to bed after midnight. This was found using a sample of 800 adults where 168 responded they usually go to bed after midnight. Which of the following is an example of a relative frequency? O 800 O 21% 168 O None of these.
A local park district is planning to build a recreation center. The park district conducted a poll to find out the types of physical activities the local population would be interested in. The poll was based on telephone responses from 1013 randomly selected adults. The table shows the percentages of people who expressed interest in various activities. Is it reasonable to conclude that 62% expressed interest in either biking or aerobics? A. Yes, because the percentages can always be added in relative frequency tables. B. No, because the poll is not based on a large-enough number of individuals. C. Yes, because these categories do not overlap. D. No, because these categories overlap. E. No, because the percentages in relative frequencies tables can never be added.
You may need to use the appropriate technology to answer this question. Five typists were selected to test two types of computer keyboards. The following table shows the number of words per minute for each typist using each keyboard. Typists Keyboard A 59 60 62 so 51 68 67 60 63 62 Consider the types of keyboards as treatments and the typists as blocks, test to see if there is any difference in the mean words/minute of the two types of keyboards. Let a- 0.os. State the null and alternative hypotheses. O Moi HTypist i #rypst 2"typist 3"Prypist 4ryoists H At least two of the typists have a different population mean ords/minute. OHo Hkeyboard 1* Pkeyboard 2 H Mevboard 1 eyboard 2 Ho HKeyboard 1" Pkeyboard 2 HMkeyboard 1 Peyboard 2 O Ho "Tyist i- Hrypist 2rypist " rypist 4iypist 5 H PTypist 1* HTypet 2 Prypint a* PTysiat 4* "typist s OHa At leest two of the typists have a different population mean words/minute. H Hryput iPryon a "Typst a "typst" Hrvpist S Find the value of the test…
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Perform the hypothesis test that there is a relationship between gender and major 4) at 5% level of significance using the information from the sample below. Math Major English Major Total Male 42 72 114 30 72 09 132 06 204 Female Total
A. P value= b. Is the p-value >,< a c. Accept, reject, or hypothesis
Researchers collected data on the numbers of hospital admissions resulting from motor vehicle crashes, and results are given below for Fridays on the 6th of a month and Fridays on the following 13th of the same month. Use a 0.05 significance level to test the claim that when the 13th day of a month falls on a Friday, the numbers of hospital admissions from motor vehicle crashes are not affected. Friday the 6th: 9 6 10 10 3 5 Friday the 13th: 14 13 13 9 5 12 What are the hypotheses for this test? Let μd be the ▼ mean of the differences difference between the means in the numbers of hospital admissions resulting from motor vehicle crashes for the population of all pairs of data. H0: μd ▼ less than< less than or equals≤ equals= greater than or equals≥ greater than> not equals≠ 0 H1: μd ▼ greater than> equals= not equals≠ greater than or equals≥ less than< less than or equals≤ 0 Find the value…
A 2012 study of freely forming groups in bars all over Europe examined the natural behavior of groups. The researchers recorded the group size (number of individuals in the group) of all 501 groups in the study that were naturally laughing. The findings were displayed in the figure below. 300 Number of groups 250 200 O 52 O 2.7 0 2 150 3.5 4 100 50 0 254 2 Enter your answer here The median laughter group size in this study is 168 3 The mean laughter group size in this study is O 100.2 Enter your answer here 52 4 5 Laughter group size 21 6 6 Can we conclude from these findings that, in European bars in 2012, smaller groups were more likely than larger groups to be naturally laughing? Explain your statistical reasoning in one sentence.
Researchers collected data on the numbers of hospital admissions resulting from motor vehicle crashes, and results are given below for Fridays on the 6th of a month and Fridays on the following 13th of the same month. Use a 0.05 significance level to test the claim that when the 13th day of a month falls on a Friday, the numbers of hospital admissions from motor vehicle crashes are not affected. Friday the 6th: Friday the 13th: 9. 7 11 11 4 5 0 13 13 13 10 6 12 What are the hypotheses for this test? Let Ha be the in the numbers of hospital admissions resulting from motor vehicle crashes for the population of all pairs of data. Ho: Hd H1: Hd Find the value of the test statistic. t = (Round to three decimal places as needed.) Identify the critical value(s). Select the correct choice below and fill the answer box within your choice. (Round to three decimal places as needed.) O A. The critical values are t= ± O B. The critical value is t = State the result of the test. Choose the correct…
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Multiple Comparisons Dependent Variable: RAPEMYTH Tukey HSD Mean Difference (- J) 95% Confidence Interval () MOST WOMEN FIND ME UNATTRACTIVE (J) MOST WOMEN FIND ME UNATTRACTIVE Agree somewhat Std. Error Sig. Lower Bound Upper Bound Agree strongly 2.69258 .56229 .000 1.2458 4.1393 Disagree somewhat 3.10941" .53686 .000 1.7281 4.4907 Disagree strongly 3.85225 .52543 .000 2.5003 5.2042 Agree somewhat Agree strongly -2.69258 .56229 .000 -4.1393 -1.2458 Disagree somewhat .41684 .32901 .584 -.4297 1.2634 Disagree strongly 1.15967" .31001 .001 .3620 1.9573 Disagree somewhat Agree strongly -3.10941 .53686 .000 -4.4907 -1.7281 Agree somewhat -.41684 .32901 .584 -1.2634 .4297 Disagree strongly .74283 .26107 .023 .0711 1.4146 Disagree strongly -3.85225 -1.15967 -74283 Agree strongly .52543 .000 -5.2042 -2.5003 Agree somewhat 31001 .001 -1.9573 -.3620 Disagree somewhat *. The mean difference is significant at the 0.05 level. .26107 .023 -1.4146 -.0711 RAPEMYTH Tukey HSD*. Subset for alpha = 0.05…
Each of the digits in a raffle is thought to have the same chance of occurrence. The table shows the frequency of each digit for consecutive drawings in a California lottery. Perform the chi-square test to see if you reject the hypothesis at the 0.05 significance level that the digits are from a uniform population. Digit Frequency Digit Frequency 0 43 5 46 1 41 6 39 2 45 7 40 3 41 8 39 4 47 9 29 a. State the decision rule. Use 0.05 significance level. (Round your answer to 3 decimal places.) H0: The digits are uniformly distributed.H1: The digits are not uniformly distributed. b. Compute the value of chi-square. (Round your answer to 3 decimal places.) c. What is your decision regarding H0?

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