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 a hospital admissions from motor vehicle crashes are not affected. Friday the 6th: Friday the 13th: 10 10 13 11 13 9 11 What are the hypotheses for this test?
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- Does your doctor know? A survey8 of articles from the New England Journal of Medicine (NEJM) classi-fied them according to the principal statistics methods used. The articles recorded were all noneditorial articlesappearing during the indicated years. Let’s just look atwhether these articles used statistics at all.Has there been a change in the use of Statistics?a) What kind of test would be appropriate?b) State the null and alternative hypotheses. Publication Year1978–79 1989 2004–05 TotalNo stats 90 14 40 144Stats 242 101 271 614Total 332 115 311 758Researchers 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 =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…
- 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…Randomly selected birth records were obtained, and categorized as listed in the table to the right. Use a 0.01 significance level to test the reasonable claim that births occur with equal frequency on the different days of the week. How might the apparent lower frequencies on Saturday and Sunday be explained? Tues Day Wed Thurs Fri Sun 42 Mon 56 Sat 38 59 Number of Births 59 62 60 Determine the null and alternative hypotheses. Ho H₁ Calculate the test statistic, ² x² = (Round to three decimal places as needed.) Calculate the P-value. P-value = (Round to four decimal places as needed.) What is the conclusion for this hypothesis test? OA. Fail to reject Ho. There is insufficient evidence to warrant rejection of the claim that births occur with equal frequency on the different days of the week. B. Reject Ho. There is insufficient evidence to warrant rejection of the claim that births occur with equal frequency on the different days of the week. OC. Fail to reject Ho There is sufficient…
- Randomly selected birth records were obtained, and categorized as listed in the table to the right. Use a 0.01 significance level to test the reasonable claim that births occur with equal frequency on the different days of the week. How might the apparent lower frequencies on Saturday and Sunday be explained? Day Sun Mon Tues Wed Thurs Fri Sat Number of Births 42 64 63 62 55 63 42 Calculate the test statistic, χ2. Calculate the P-value. What is the conclusion for this hypothesis test?Randomly selected birth records were obtained, and categorized as listed in the table to the right. Use a 0.01 significance level to test the reasonable claim that births occur with equal frequency on the different days of the week. How might the apparent lower frequencies on Saturday and Sunday be explained? Day Sun Mon Tues Wed Thurs Fri Sat Number of Births 46 63 58 59 63 63 36 Determine the null and alternative hypotheses. Ho H, Calculate the test statistic, y2. x = (Round to three decimal places as needed.) Calculate the P-value. P-value = (Round to four decimal places as needed.) What is the conclusion for this hypothesis test? O A. Reject Ho. There is sufficient evidence to warrant rejection of the claim that births occur with equal frequency on the different days of the week. O B. Fail to reject Ho. There is sufficient evidence to warrant rejection of the claim that births occur with equal frequency on the different days of the week OC. Reject Ho- There is insufficient evidence…Use the three-read strategy to understand the following exercise from a statistics textbook, and then proceed to complete the exercise. A popular urban legend is that more babies than usual are born during certain phases of the lunar cycle, especially near the full moon. Suppose that a certain paper classified births according to the lunar cycle. Data for a sample of randomly selected births, consistent with summary quantities in the paper, are given in the accompanying table. Lunar Phase Numberof Days Numberof Births New Moon 24 7,670 Waxing Crescent 152 48,442 First Quarter 24 7,589 Waxing Gibbous 149 47,814 Full Moon 24 7,711 Waning Gibbous 150 47,595 Last Quarter 24 7,733 Waning Crescent 152 48,240 Calculate the value of the Χ2 goodness-of-fit test statistic that could be used to determine if the distribution of number of births in each lunar phase is what would be expected based on the number of days in each phase. Use the value of the test statistic to…
- A beer store wanted to test the difference on drinking habits if a younger group of 21-30 years old (n=8) to an older group of 50 to 60 years old (n=10). The store took a survey of beers per year each person had in both groups and found the following data: 21-30 group 50-60 group 50 35 17 64 25 39 88 75 53 61 62 89 36 45 29 35 29 78 State the hypotheses of the study.b. Find the critical t value for this study at an alpha level at α=.05.c. Compute the independent t testd. If significant, perform a percentage of variance test.e. State the results in APA format (numbers and words) and don’t forget to include all parts in the sentence and the direction of the results.K 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. e this 4 Friday the 6th: Friday the 13th: 7 Z View an example What are the hypotheses for this test? Let u be the Hoi Hy zo Họ: Hy đọ 2 2 W S x H 10 14 command 2 3 mean of the differences Find the value of the test statistic. t=2.771 (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.) OA. The critical values are t= 1. OB. The critical value is t= 6 12 Get more help - 80 E D с 35 4 11 13 R F 11 10 % 5 V 4 in the numbers of hospital admissions resulting…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 154 204 223 241 176 209 240 Determine the null and alternative hypotheses. Но H1: Calculate the test statistic, y?. x2 = (Round to three decimal places as needed.) Calculate the P-value. P-value =| |(Round to four decimal places as needed.) Click to select vour answer(s)