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5. Independent random samples were obtained from two Normally distributed populations. The study was conducted in order to test the null hypothesis Ho: "i -oi against the altemative Ha: "i >o; The following is a summary of the sample results: from Population Ifrom Population 2 Sample size Sample Mean Sample Standard Deviation 21 16 284.4 261.5 25.4 15.1 To test this hypothesis the value of the test statistic and the P-value are, respectively A3.41. greater than 0.1. B1.68, between 0.02 and 0.05. C)3.41, between 0.001 and 0.0025. D2.83, between .01 and .025. E)2.83, greater than 0.05.

5. Independent random samples were obtained from two Normally distributed populations. The study was conducted in order to test the null hypothesis Ho: "i -oi against the altemative Ha: "i >o; The following is a summary of the sample results: from Population Ifrom Population 2 Sample size Sample Mean Sample Standard Deviation 21 16 284.4 261.5 25.4 15.1 To test this hypothesis the value of the test statistic and the P-value are, respectively A3.41. greater than 0.1. B1.68, between 0.02 and 0.05. C)3.41, between 0.001 and 0.0025. D2.83, between .01 and .025. E)2.83, greater than 0.05.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Hi I know that you can’t answer every question is there anyway you can just answer question 5 please?
3:03 The scores on the Wechsler Intelligence Scale for Children (WISC) are thought to be Normally distributed with standard deviation = 10. A simple random sample of 25 children is taken, and each is given the WISC. The mean of the 25 scores is = 104.32. Based on these data, what is a 95% confidence interval for A104.32 0.78 B104.32 3. 29 o104.32 + 3.92 D104.32 + 19.60 2. If in the study of the lifetime of 60-watt light bulbs it was desired to have a margin of error no larger than 6 hours with 99% confidence, how many randomly selected 60-watt light bulbs should be tested to achieve this result? A13 B)97 C)165 D42 Not within +2 of any of the above. A test of significance was conducted in a study involving a random sample of 25 subjects. Based on the test result using the sample mean, I , it was determined that the P-value was equal to 0.028. Which of the following statements about this P-value is TRUE? AIn this situation there is no evidence against the null hypothesis. B)The P-value was calculated under the assumption that the null hypothesis was true. cThe probability of a value of the test statistic at least as extreme as that observed in this study, assuming the altemative hypothesis is true, is 0.028. DAll of the above are true statements. E) Only C is a true statement about the P.value. You wish to compare the prices of apartments in two neighboring towns. You take a simple random sample of 15 apartments in town A and calculate the average price of these apartments. You repeat this for 12 apartments in town B. Let represent the true average price of apartments in town A and the average price in town B. What would be the hypotheses for this problem? AH: 0=0, versus H: 0,< 0 B)H: 0 = 0, versus H: 0,> 0. H:0-0, versus H: 0#0 5. Independent random samples were obtained from two Normally distributed populations. The study was conducted in order to test the null hypothesis Ho: i =0i against the altemative Ha: o; >0; The following is a summary of the sample results: from Population Ifrom Population 2 Sample size Sample Mean Sample Standard Deviation 21 16 284.4 261.5 25.4 15.1 To test this hypothesis the value of the test statistic and the P-value are, respectively A)3.41. greater than 0.1. B)1.68, between 0.02 and 0.05. C)3.41, between 0.001 and 0.0025. D2.83, between .01 and .025. E) 2.83, greater than 0.05. Use the following to answer questions 6–8: 89 o00 000 Dashboard Calendar To Do Notifications Inbox
Transcribed Image Text:3:03 The scores on the Wechsler Intelligence Scale for Children (WISC) are thought to be Normally distributed with standard deviation = 10. A simple random sample of 25 children is taken, and each is given the WISC. The mean of the 25 scores is = 104.32. Based on these data, what is a 95% confidence interval for A104.32 0.78 B104.32 3. 29 o104.32 + 3.92 D104.32 + 19.60 2. If in the study of the lifetime of 60-watt light bulbs it was desired to have a margin of error no larger than 6 hours with 99% confidence, how many randomly selected 60-watt light bulbs should be tested to achieve this result? A13 B)97 C)165 D42 Not within +2 of any of the above. A test of significance was conducted in a study involving a random sample of 25 subjects. Based on the test result using the sample mean, I , it was determined that the P-value was equal to 0.028. Which of the following statements about this P-value is TRUE? AIn this situation there is no evidence against the null hypothesis. B)The P-value was calculated under the assumption that the null hypothesis was true. cThe probability of a value of the test statistic at least as extreme as that observed in this study, assuming the altemative hypothesis is true, is 0.028. DAll of the above are true statements. E) Only C is a true statement about the P.value. You wish to compare the prices of apartments in two neighboring towns. You take a simple random sample of 15 apartments in town A and calculate the average price of these apartments. You repeat this for 12 apartments in town B. Let represent the true average price of apartments in town A and the average price in town B. What would be the hypotheses for this problem? AH: 0=0, versus H: 0,< 0 B)H: 0 = 0, versus H: 0,> 0. H:0-0, versus H: 0#0 5. Independent random samples were obtained from two Normally distributed populations. The study was conducted in order to test the null hypothesis Ho: i =0i against the altemative Ha: o; >0; The following is a summary of the sample results: from Population Ifrom Population 2 Sample size Sample Mean Sample Standard Deviation 21 16 284.4 261.5 25.4 15.1 To test this hypothesis the value of the test statistic and the P-value are, respectively A)3.41. greater than 0.1. B)1.68, between 0.02 and 0.05. C)3.41, between 0.001 and 0.0025. D2.83, between .01 and .025. E) 2.83, greater than 0.05. Use the following to answer questions 6–8: 89 o00 000 Dashboard Calendar To Do Notifications Inbox
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