9. Using the values that you found in numbers 1 and 2, perform the following hypothesis test. At a 10% significance level, test the claim that the women’s mean completion time is greater than ___________ (the men’s mean completion time).
Sample sizes:
male: 32
female: 35
There is enough evidence to support the claim that the women’s mean completion time is greater than the men’s mean completion time.
9. Using the values that you found in numbers 1 and 2, perform the following hypothesis...
1. Sample Mean: mens- 27.91 women - 31.57 2. Standard Deviation men- 0.664 women- 1.167 Sample Size mens- 32 womens- 35 Using the values that you found in numbers 1 and 2, perform the following hypothesis test. At a 10% significance level, test the claim that the women’s mean completion time is greater than ___________ (the men’s mean completion time). Ho: _________________ Ha: __________________ Label the claim. What type of test will you use? (Z-Test, T-test, or 1-ProZTest) ____________________ Where...
_ 9) In a sample of 10 randomly selected women, it was found that their mean height was 634 inches. From previous studies, it is assumed that the standard deviation, , 124 inches and that the population of height measurements is normally distributed a) Construct the confidence interval for the population mean height of women b) If the sample size was doubled to 20 women, what will be the effect on the confidence interval? 10) 10) The numbers of advertisements...
The mean exam score for 44 male high school students is 20.1 and the population standard deviation is 4.7. The mean exam score for 58 female high school students is 19.6 and the population standard deviation is 4.1. At a = 0.01, can you reject the claim that male and female high school students have equal exam scores? Complete parts (a) through (e). Click here to view page 1 of the standard normal distribution table. Click here to view page...
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...
The P-value for a hypothesis test is shown. Use the P-value to decide whether to reject H when the level of significance is (a) a= 0.01, (b) a 0.05, and (c) a0.10. P 0.0749 (a) Do you reject or fail to reject Ho at the 0.01 level of significance? O A. Reject H because the P-value, 0.0749, is greater than a=0.01 O B. Fail to reject Ho because the P-value, 0.0749, is less than a = 0.01 O C. Reject...
A company claims that the mean monthly residential electricity consumption in a certain region is more than 890 kilowatt-hours (kWh). You want to test this claim. You find that a random sample of 64 residential customers has a mean monthly consumption of 910 kWh. Assume the population standard deviation is 121 kWh. At a = 0.05, can you support the claim? Complete parts (a) through (e). (a) Identify Ho and Ha. Choose the correct answer below. O B. Ho u...
e / Study / A company claims that the mean monthly residential electricity consumption in a certain region is more than 870 kilowatt-hours (kWh). You want to test this claim You find that a random sample of 68 residential customers has a mean monthly consumption of 890 kWh. Assume the population standard deviation is 125 kWh Ala010 can you support the claim? Complete parts (a) through (e) jestio (a) Identify Ho and H. Choose the correct answer below w transcribe...
problem #1 problem #2 and 35 models of Make B. The mean braking distance for Make A is 43 feet. Assume the population standard deviation is 4.8 feet. The mean braking distance for Make Bis 45 foet. Assume the population standard deviation is 4,5 feet. Ato -0.10, can the engineer support the claim that the mean braking distances are different for the two makes of automobiles? Assume the samples are random and independent, and the populations are normally distributed. Complete...
Next Problem Problem List Previous Problem (4 points) An Office of Admission document claims that 55.2 % of UVA undergraduates are female. To test this claim, a random sample of 225 UVA undergraduates was selected. In this sample, 57.89% were female. Is there sufficient evidence to conclude that the document's claim is false? Carry out a hypothesis test at a 49% significance level. A. The value of the standardized test statistic: Note: For the next part, your answer should use...
statistics help 7) Determine the decision criterion for rejecting the null hypothesis in the given hypothesis test ie, describe the values of the test statistic that would result in rejection of the null hypothesis Suppose you wish to test the claim that the mean value of the differences d for a population of paired data, is greater than 0. Given a sample of n-15 and a significance level of a-001, what criterion would be used for rejecting the null hypothesis...