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![P-value = 0.063 [using Excel function CHIDIST(11.954,6)] Decision rule : Reject HO if P-value < a Here P-value = 0.063 > 0.05](http://img.homeworklib.com/questions/e4b505e0-ee1a-11ea-8e77-2fdac9305b4f.png?x-oss-process=image/resize,w_560)
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A researcher interested in personal health habits asked a random sample of 2839 people how many...
A researcher interested in personal health habits asked a random sample of 3209 people how many...
A researcher interested in personal health habits asked a random sample of 3209 people how many times they usually worked out per week, and their level of educational attainment. 6+ High school Undergraduate degree Graduate degree 0 183 250 183 Weekly workouts 1-2 3-5 249 261 388 574 250 331 123 244 173 (a) Which hypotheses should they test? Ho: Number of weekly workouts is not related to educational attainment vs. Ha: Number of weekly workouts is related to educational...
A researcher interested in personal health habits asked a random sample of 3114 people how many...
A researcher interested in personal health habits asked a random sample of 3114 people how many times they usually worked out per week, and their level of educational attainment. 0 High school Undergraduate degree Graduate degree 196 268 147 Weekly workouts 1-2 3-5 221 315 367 493 207 346 6+ 187 266 101 (a) Which hypotheses should they test? Ho: Number of weekly workouts is not related to educational attainment vs. Ha: Number of weekly workouts is related to educational...
A random sample of size ny = 36 yields a variance of 6.2, and a random...
A random sample of size ny = 36 yields a variance of 6.2, and a random sample of size n2 = 37 yields a variance of 8.4. At a = 0.01, test the claim that the variance of Population 1 is less than the variance of Population 2. 1. The alternate hypothesis is Ha: si < 82 Οσι < σ2 oo <o Osi <s 2. This is a left tailed test with: dfn- and dfa - 3a. The STS (to...
A random sample of size ni = 30 yields a standard deviation of 8.5, and a...
A random sample of size ni = 30 yields a standard deviation of 8.5, and a random sample of size n2 = 31 yields a standard deviation of 6.6. At a = 0.01, test the claim that the standard deviation of Population 1 is not the standard deviation of Population 2. 1. The alternate hypothesis is Ha: Oo o 0917 02 Os s Osi #s2 2. This is a two tailed test with: dfn= and dfa - 3a. The STS...
The table below contains the results from random samples of two populations. Sample 1 38.1 35.3...
The table below contains the results from random samples of two populations. Sample 1 38.1 35.3 43.2 40.4 43.8 wa 34.9 39.7 ca 35.8 293 41.3 47.1 45.4 35 Sample 2 35.1 42.4 33.1 41.9 53.5 10 40.6 18 33.8 20 48.9 23 33.6 18.5 44.5 53.7 At a = 0.10, test the claim that the variance of Population 1 is not the same as the variance of Population 2. 1. The alternate hypothesis is Ha: 001702 81 #82 Oss...
Based on information from a previous study, r = 34 people out of a random sample...
Based on information from a previous study, r = 34 people out of a random sample of n = 101 adult Americans who did not attend college believe in extraterrestrials. However, out of a random sample of n2 = 101 adult Americans who did attend college, '2 = 47 claim that they believe in extraterrestrials. Does this indicate that the proportion of people who attended college and who believe in extraterrestrials is higher than the proportion who did not attend...
The table below is the frequency of wins for different postpositions in a horse race. A...
The table below is the frequency of wins for different postpositions in a horse race. A post position of 1 is closest to the inside, so that horse has the shortest distance to run (Because the number of horses varies from year to year, only the first 10 postpositions are included) Use a 0.05 significance level to test the claim that the Relhood of winning is the same for the different post positions. Based on the result, should better consider...
The table below contains the results from random samples of two populations. Sample 51.6 40.3 36.9...
The table below contains the results from random samples of two populations. Sample 51.6 40.3 36.9 34.7 34.7 40.2 40.2 43 32.6 Sample 2 32.3 35.8 37.7 40.8 40.5 45.1 34.2 29.3 43 45 365 30.5 28.2 44.7 29.4 29.4 43.7 44.7 41.5 33.5 At a = 0.10, test the claim that the standard deviation of Population 1 is less than the standard deviation of Population 2. 1. The alternate hypothesis is Ha: Os <s Οσι < σ2 OO <o...
Use the following information to complete steps (a) through (d) below. A random sample of ny...
Use the following information to complete steps (a) through (d) below. A random sample of ny = 135 individuals results in xy = 40 successes. An independent sample of n2 = 150 individuals results in x2 = 60 successes. Does this represent sufficient evidence to conclude that P, <P2 at the a = 0.10 level of significance? (a) What type of test should be used? A. A hypothesis test regarding the difference between two population proportions from independent samples. B....
This UUSUT Assume that a simple random sample has been selected from a normally distributed population...
This UUSUT Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Identify the null and alterative hypotheses, and where claim. A simple random sample of 25 tored 100 mm cigaretes is obtained, and the tar content of each gratis measured. The sample has a mean of 100 mg and a standard deviation of Use the meantar content of fired 100 mm cigarettes is less than 21.1 mg, which is the...
A researcher interested in personal health habits asked a random sample of 3209 people how many times they usually worked out per week, and their level of educational attainment. 6+ High school Undergraduate degree Graduate degree 0 183 250 183 Weekly workouts 1-2 3-5 249 261 388 574 250 331 123 244 173 (a) Which hypotheses should they test? Ho: Number of weekly workouts is not related to educational attainment vs. Ha: Number of weekly workouts is related to educational...
A researcher interested in personal health habits asked a random sample of 3114 people how many times they usually worked out per week, and their level of educational attainment. 0 High school Undergraduate degree Graduate degree 196 268 147 Weekly workouts 1-2 3-5 221 315 367 493 207 346 6+ 187 266 101 (a) Which hypotheses should they test? Ho: Number of weekly workouts is not related to educational attainment vs. Ha: Number of weekly workouts is related to educational...
A random sample of size ny = 36 yields a variance of 6.2, and a random sample of size n2 = 37 yields a variance of 8.4. At a = 0.01, test the claim that the variance of Population 1 is less than the variance of Population 2. 1. The alternate hypothesis is Ha: si < 82 Οσι < σ2 oo <o Osi <s 2. This is a left tailed test with: dfn- and dfa - 3a. The STS (to...
A random sample of size ni = 30 yields a standard deviation of 8.5, and a random sample of size n2 = 31 yields a standard deviation of 6.6. At a = 0.01, test the claim that the standard deviation of Population 1 is not the standard deviation of Population 2. 1. The alternate hypothesis is Ha: Oo o 0917 02 Os s Osi #s2 2. This is a two tailed test with: dfn= and dfa - 3a. The STS...
The table below contains the results from random samples of two populations. Sample 1 38.1 35.3 43.2 40.4 43.8 wa 34.9 39.7 ca 35.8 293 41.3 47.1 45.4 35 Sample 2 35.1 42.4 33.1 41.9 53.5 10 40.6 18 33.8 20 48.9 23 33.6 18.5 44.5 53.7 At a = 0.10, test the claim that the variance of Population 1 is not the same as the variance of Population 2. 1. The alternate hypothesis is Ha: 001702 81 #82 Oss...
Based on information from a previous study, r = 34 people out of a random sample of n = 101 adult Americans who did not attend college believe in extraterrestrials. However, out of a random sample of n2 = 101 adult Americans who did attend college, '2 = 47 claim that they believe in extraterrestrials. Does this indicate that the proportion of people who attended college and who believe in extraterrestrials is higher than the proportion who did not attend...
The table below is the frequency of wins for different postpositions in a horse race. A post position of 1 is closest to the inside, so that horse has the shortest distance to run (Because the number of horses varies from year to year, only the first 10 postpositions are included) Use a 0.05 significance level to test the claim that the Relhood of winning is the same for the different post positions. Based on the result, should better consider...
The table below contains the results from random samples of two populations. Sample 51.6 40.3 36.9 34.7 34.7 40.2 40.2 43 32.6 Sample 2 32.3 35.8 37.7 40.8 40.5 45.1 34.2 29.3 43 45 365 30.5 28.2 44.7 29.4 29.4 43.7 44.7 41.5 33.5 At a = 0.10, test the claim that the standard deviation of Population 1 is less than the standard deviation of Population 2. 1. The alternate hypothesis is Ha: Os <s Οσι < σ2 OO <o...
Use the following information to complete steps (a) through (d) below. A random sample of ny = 135 individuals results in xy = 40 successes. An independent sample of n2 = 150 individuals results in x2 = 60 successes. Does this represent sufficient evidence to conclude that P, <P2 at the a = 0.10 level of significance? (a) What type of test should be used? A. A hypothesis test regarding the difference between two population proportions from independent samples. B....
This UUSUT Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Identify the null and alterative hypotheses, and where claim. A simple random sample of 25 tored 100 mm cigaretes is obtained, and the tar content of each gratis measured. The sample has a mean of 100 mg and a standard deviation of Use the meantar content of fired 100 mm cigarettes is less than 21.1 mg, which is the...
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