Researchers collected data on the numbers of hospital admissions resulting from motor vehicle crashes, and results aregiven below for Fridays on the 6th of a month and Fridays on the following 13th of the same month. Use a 0.05 significancelevel to test the claim that when the 13th day of a month falls on a Friday, the numbers of hospital admissions from motorvehicle crashes are not affected.Friday the 6th:Friday the 13th:1014713What are the hypotheses for this test?Let μd be thethe population of all pairs of data.Ho: Hd= 0H₁: Hd0mean of the differencesFind the value of the test statistic.11141110t= (Round to three decimal places as needed.)465013in the numbers of hospital admissions resulting from motor vehicle crashes for

Hypothesis is an assumption that is being tested.

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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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: 10 14 7 13 What are the hypotheses for this test? Let Hd be the mean of the differences Ho: Hd = 0 H₁: Hd 0 11 14 11 10 4 6 Find the value of the test statistic. t= -2.860 (Round to three decimal places as needed.) 50 13 in the numbers of hospital admissions resulting from motor vehicle crashes for the population of all pairs of data. 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.) OA. The critical values are t = t OB. The critical value is t =
A baseball team claims that the mean length of its games is 2.8 hours. State Ho and H, in words and in symbols. Then determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. Explain your reasoning. State the null hypothesis in words and in symbols. Choose the correct answer below. O A. The null hypothesis expressed in words is, "the mean length of a baseball team's games is 2.8 hours." The null hypothesis is expressed symbolically as, "Ho: u= 2.8." O B. The null hypothesis expressed in words is, "the mean length of a baseball team's games is at least 2.8 hours." The null hypothesis is expressed symbolically as, "Ho: u22.8." OC. The null hypothesis expressed in words is, "the mean length of a baseball team's games is at most 2.8 hours." The null hypothesis is expressed symbolically as, "Ho: uS2.8." O D. The null hypothesis expressed in words is, "the mean length of a baseball team's games is more than 2.8 hours." The null hypothesis is expressed…
a) Carefully define the null and alternative hypotheses of the ?2 test of the above table. b) Find the missing values ‘*’, ‘**’, ‘***’ ??, ??? c) What is the conclusion of this test? Give reasons for your answer.
18
An alternate hypothesis that includes < or > is called a ___________ test.
A police department released the numbers of calls for the different days of the week during the month of October, as shown in the table to the right. Use a 0.01 significance level to test the claim that the different days of the week have the same frequencies of police calls. What is the fundamental error with this analysis? Day Sun Mon Tues Wed Thurs Fri Sat Frequency 156 205 230 245 179 213 234 Determine the null and alternative hypotheses. Calculate the test statistic, χ2. Calculate the P-value. What is the conclusion for this hypothesis test? A. Fail to reject H0. There is insufficient evidence to warrant rejection of the claim that the different days of the week have the same frequencies of police calls. B. Fail to reject H0. There is sufficient evidence to warrant rejection of the claim that the different days of the week have the same frequencies of police calls. C. Reject H0. There is insufficient…
Is there an association between grade level and whether the student makes their bed in the morning? To investigate, the principal at a large high school selects a random sample of 84 students and classifies them as being in ninth, tenth, eleventh, or twelfth grade, and whether they make their bed. He would like to determine if there is convincing evidence of an association. Let a = 0.05. What are the hypotheses for this test? O Ho: There is no association between grade level and whether the student makes their bed in the morning. Hạ: There is an association between grade level and whether the student makes their bed in the morning. O Ho: There is an association between grade level and whether the student makes their bed in the morning. Hạ: There is no association between grade level and whether the student makes their bed in the morning. O Ho: There is a difference in the distribution of grade level and whether the student makes their bed in the morning. Hạ: There is no difference in…
A police department released the numbers of calls for the different days of the week during the month of October, as shown in the table to the right. Use a 0.01 significance level to test the claim that the different days of the week have the same frequencies of police calls. What is the fundamenta error with this analysis? Day Frequency Sun 154 Mon 205 Tues 230 Thurs 177 Fri 210 Sat 230 Wed 241 Determine the null and alternative hypotheses Calculate the test statistic. r=ORound to three decimal places as needed.) Calculate the P-value. Pvalue =O (Round to four decimal places as needed.)
The hypotheses, Null and Alternative, are basically statements about which of the following? * O both population and sample parameters sample statistics O population parameters O sample parameters
A police department released the numbers of calls for the different days of the week during the month of October, as shown in the table to the right. Use a 0.01 significance level to test the claim that the different days of the week have the same frequencies of police calls. What is the fundamental error with this analysis? Day Sun Mon Tues Wed Thurs Fri Sat Frequency 159 206 230 245 179 210 234 Determine the null and alternative hypotheses. H0: ▼ At least one day has a different frequency of calls than the other days. At least two days have a different frequency of calls than the other days. Police calls occur with the same frequency on the different days of the week. Police calls occur with all different frequencies on the different days of the week. H1: ▼ At least one day has a different frequency of calls than the other days. Police calls occur with the same frequency on the different days of the week.…

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