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Quiz: Chapter 7 Review Quiz Submit Quiz This Question: 1 pt 20 of 23 (10 complete) This Quiz: 23 ...
You receive a brochure from a large university. The brochure indicates that the mean class size for full-time faculty is fewer than 32 students. You want to test this claim. You randomly select 18 classes taught by full-time faculty and determine the class sze of each. The results are shown in the table below. At α 0.01, can you support the university's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. 32 32 31 36 29...
This Question: 1 pt 2 of 2 This Quiz: 2 pts possibl Question Help The test statistic of z 2.22 is obtained when testing the claim that p > 02. a. Identify the hypothesis test as being two-tailed, left-tailed, or right-tailed b. Find the P-value. c. Using a significance level of a-0.05, should we reject Ho or should we fail to reject Ho Click here to view page 1 of the standard normal distribution table. Click here to view page...
This Question: 1 pt 4 of 19 (1 complete) The test statistic of 2.21 is obtained when testing the daim that p>0.7 a. Identify the hypothesis test as being two-tailed, left-tailed, or right-tailed b. Find the P-value. c. Using a significance level of x=0.10, should we reject He or should we fail to reject Ha? Click here to view page 1 of the standard normal distribution table Click here to view page 2 of the standard normal distribution table. a....
question #7 Assume a significance level of a = 0.05 and use the given information to complete parts (a) and (b) below. Original claim: The proportion of male golfers is less than 0.8. The hypothesis test results in a P-value of 0.15. a. State a conclusion about the null hypothesis. (Reject He or fail to reject Ho) Choose the correct answer below. O A. Fail to reject He because the P-value is greater than a OB. Reject H, because the...
The P-value for a hypothesis test is shown. Use the P-value to decide whether to reject He when the level of significance is (a) a = 0.01, (b) a = 0.05, and (C) a = 0.10. P = 0.0695 (a) Do you reject or fail to reject He at the 0.01 level of significance? O A. Fail to reject H, because the P-value, 0.0695, is greater than a = 0.01. O B. Fail to reject H, because the P-value, 0.0695,...
A-D This Question: 1 pt 8 of 10 (8 complete) This QUIZ: 10 pts possible A simple random sample of size n= 15 is drawn from a population that is normally distributed. The sample mean is found to be x = 27.4 and the sample standard deviation is found to be s = 6.3. Determine if the population mean is different from 24 at the a=0.01 level of significance. Complete parts (a) through (d) below. (a) Determine the nul and...
You receive a brochure from a large university. The brochure indicates that the mean class size for full-time faculty is fewer than 33 students. You want to test this claim. You randomly select 18 classes taught by full-time faculty and determine the class size of each. The results are shown in the table below. At α-0.05 can you support the university's claim? Complete parts a through d below Assume the population is normally distributed. 38 30 31 26 34 32...
ssume a significance level of a=0.1 and use the given information to complete parts (a) and (b) below. Driginal claim: The mean pulse rate (in beats per minute) of a certain group of adult males is 74 bpm. The hypothesis test results in a P-value of 0.0044. a. State a conclusion about the null hypothesis. (Reject Ho or fail to reject Ho) Choose the correct answer below. O A. Fail to reject Ho because the P-value is less than or...
3, Hypothesis testing for the mean (gis known) Find the P-value for a two-tailed hypothesis test with a standardized test statistic of z 1.64. Decide whether to reject Ho when the level of significance is α a. 0.10. b. Find the P-value for a right-tailed hypothesis test with a standardized test statistic of z 1.64. Decide whether to reject Ho when the level of significance is a0.10. Homeowners claim that the mean speed of automobiles traveling on their street is...
Assume a significance level of a 0.05 and use the given information to complete parts (a) and (b) below. Original claim: Less than 41% of adults would erase all of their personal information online if they could. The hypothesis test results in a P-value of 0.2037 a. State a conclusion about the null hypothesis. (Reject Ho or fail to reject Ho.) Choose the correct answer below OA. Fail to reject Ho because the P-value is less than or equal to...