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: 10 5 11 11 4 6   Friday the​ 13th: 14 11 14 10 6 13

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

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 study was conducted to determine the proportion of people who dream in black and white instead of color. Among 318 people over the age of 55, 77 dream in black and white, and among 298 people under the age of 25, 16 dream in black and white. Use a 0.05 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below. H4: P1 P2 H: P1 #P2 O D. Ho: P1 SP2 H1: P1#P2 O E. Ho: P1 P2 H1: P1 = P2 O F. Ho: P1 =P2 H1: P1 #P2 Identify the test statistic. z= 6.52 (Round to two decimal places as needed.) Identify the P-value. P-value = 0.000 (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? The P-value is less than the significance level of a = 0.05, so reject the null hypothesis. There is sufficient evidence to support the claim that the proportion of people over 55 who dream in black and white is greater than the proportion…

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…

A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 320 people over the age of​ 55, 72 dream in black and​ white, and among 313 people under the age of​ 25, 15 dream in black and white. Use a 0.01 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts​ (a) through​ (c) below.   a. Test the claim using a hypothesis test.   Consider the first sample to be the sample of people over the age of 55 and the second sample to be the sample of people under the age of 25. What are the null and alternative hypotheses for the hypothesis​ test?     A. H0​: p1=p2 H1​: p1≠p2   B. H0​: p1=p2 H1​: p1>p2   C. H0​: p1≥p2 H1​: p1≠p2   D. H0​: p1≠p2 H1​: p1=p2   E. H0​: p1≤p2 H1​: p1≠p2   F. H0​: p1=p2 H1​:p1<p2         Identify the test statistic.   z=_____ ​(Round to…

A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 294 people over the age of 55, 63 dream in black and white, and among 300 people under the age of 25, 19 dream in black and white. Use a 0.05 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of people over the age of 55 and the second sample to be the sample of people under the age of 25. What are the null and alternative hypotheses for the hypothesis test? A. Ho: P₁ = P2 H₁: P₁ P2 D. Ho: P₁ P2 H₁: P₁ P2 OB. Ho: P1 P2 H₁: P₁ P2 O E. Ho: P1 H₁: P₁ P2 P2 O C. Ho: P₁ P2 H₁: P₁ = P2 OF. Ho: P₁ P2 H₁: P₁ P2