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: 13 12 13 9 5 12   What are the hypotheses for this​ test?   Let μd be the ____mean of the

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 152 200 229 241 173 213 230

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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: 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…

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…

Every year during home football games the Carroll College fans do push-up contests to see how many they can do. Suppose that a curious stats student in the stands kept track of the number of push-ups completed for several students of both genders. Males 31 31 24 18 30 16 28 13 26 23 Females 16 11 10 1 26 26 6 9 16 32 Consider the hypothesis that males in this contest can do more pushups than females. Use an  significance level to test the claim.  The test statistic is   Construct a 99% confidence interval for the mean of the differences between males and females.

I need help with question 7

A samll town installed a Blue streetlights, in part, to help reduce crime in particular areas. The city collected the number of property crimes along nine randomly selected streets in the month before and after the Blue light installation, and claims that crime has been reduced.The number of crime data is shown in the table. No before Blue Light After Blue Light 1 17 14 2 25 20 3 10 14 4 14 12 5 16 8 6 34 35 7 32 27 8 21 18 9 14 12 a. Specify the competing hypotheses to test the s,all town's claim.b. Calculate the value of the relevant test statistic and find the critical value at the 5% significance level.c. Does the evidence support the small town's claim at the 5% significance level?

Medical researchers followed 6272 Swedish men for 30 years to see if there was any association between the amount of fish in their diet and prostate cancer. (“Fatty Fish Consumption and Risk of Prostate Cancer,” Lancet, June 2001).  A summary of the data is given in the table below.  Fish Consumption No Prostate Cancers Prostate Cancers Never/Seldom 110 14 Small part of diet 2420 201 Moderate part of diet 2769 209 Large part of diet 507 42   A) If a patient is randomly selected, what is the probability that he/she had prostate cancer given that fish was never or seldom a part of the diet?  Round your answer to three decimal places and include the leading zero. B) If a patient is randomly selected, what is the probability that s/he ate fish as a large part of their diet given that they had prostate cancer.  Round your answer to two decimal places and include the leading zero.

Answer j and k