Bonferroni (I) VAR00002 (J) VAR00002 Mean Difference (I-J) Std. Error Sig. 95% Confidence Interval Lower Bound Upper Bound 1.00 2.00 3.5432 1.8905 .217 -1.295 8.381 3.00 3.8582 1.7777 .118 -.691 8.407 2.00 1.00 -3.5432 1.8905 .217 -8.381 1.295 3.00 .3150 1.9299 1.000 -4.624 5.254 3.00 1.00 -3.8582 1.7777 .118 -8.407 .691 2.00 -.3150 1.9299 1.000 -5.254 4.624 Which of the pair-wise comparisons is the most significant prior to correction?
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|
Bonferroni |
||||||
|
(I) VAR00002 |
(J) VAR00002 |
Mean Difference (I-J) |
Std. Error |
Sig. |
95% Confidence Interval |
|
|
Lower Bound |
Upper Bound |
|||||
|
1.00 |
2.00 |
3.5432 |
1.8905 |
.217 |
-1.295 |
8.381 |
|
3.00 |
3.8582 |
1.7777 |
.118 |
-.691 |
8.407 |
|
|
2.00 |
1.00 |
-3.5432 |
1.8905 |
.217 |
-8.381 |
1.295 |
|
3.00 |
.3150 |
1.9299 |
1.000 |
-4.624 |
5.254 |
|
|
3.00 |
1.00 |
-3.8582 |
1.7777 |
.118 |
-8.407 |
.691 |
|
2.00 |
-.3150 |
1.9299 |
1.000 |
-5.254 |
4.624 |
- Which of the pair-wise comparisons is the most significant prior to correction?
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- Data on the numbers of hospital admissions resulting from motor vehicle crashes are given below for Fridays on the 6th of a month and Fridays on the following 13th of the same month. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Construct a 95% confidence interval estimate of the mean of the population of differences between hospital admissions. Use the confidence interval 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 12 12 5 3 7 Friday the 13th 15 11 12 13 13Data on the numbers of hospital admissions resulting from motor vehicle crashes are given below for Fridays on the 6th of a month and Fridays on the following 13th of the same month. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Construct a 95% confidence interval estimate of the mean of the population of differences between hospital admissions. Use the confidence interval 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. 3 4 11 Friday the 6th Friday the 13th 10 14 14 12 13 In this example, µ, is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the number of hospital admissions on Friday the 6th minus the number of hospital admissions on Friday the 13th. Find the 95% confidence interval. (Round to two decimal places as…Data on the numbers of hospital admissions resulting from motor vehicle crashes are given below for Fridays on the 6th of a month and Fridays on the following 13th of the same month. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Construct a 95% confidence interval estimate of the mean of the population of differences between hospital admissions. Use the confidence interval 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 4 12 10 10 10 14 10 11 13 In this example, H. is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the number of hospital admissions on Friday the 6th minus the number of hospital admissions on Friday the 13th. Find the 95% confidence interval. (Round to two decimal places as…
- Data on the numbers of hospital admissions resulting from motor vehicle crashes are given below for Fridays on the 6th of a month and Fridays on the following 13th of the same month. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Construct a 95% confidence interval estimate of the mean of the population of differences between hospital admissions. Use the confidence interval 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. In this example, mu Subscript d is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the number of hospital admissions on Friday the 6th minus the number of hospital admissions on Friday the 13th. Find the 95% confidence interval. _____< mu Subscript d < ______ (Round to two decimal…A particular fruit's weights are normally distributed, with a mean of 492 grams and a standard deviation of 14 grams. If you pick one fruit at random, what is the probability that it will weigh between 479 grams and 511 gramsNone
- 5. Dr. Zinn and Dr. Zorders arranged to offer Z-Math, their innovative method for teaching students the multiplication table (1 x 1... 10 x 10), to fourth graders at Sepulveda Street School. The principal is willing to try the Z-Math method, but she is also curious about how effective multiplication flashcards with a math coach might be. Which is the best method for teaching multiplication: (1) the usual teaching method, (2) Z-Math, or (3) flashcards with a math coach? Descriptives Score 95% Confidence Interval for Std. Mean Mean Devlation Std. Error Lower Bound Upper Bound Minimum Maximum 73.13 N. 1.289 78.40 61 87 30 75.77 30 80.97 30 80.63 90 79.12 7.060 Math as usual Z-Math Flashcards Total 8.830 1.612 77.67 84.26 62 99 83.96 80.91 98 99 8.900 1.625 77.31 49 8.554 .902 77.33 49 ANOVA Score Sum of Squares 508.356 Sig. 029 IP Mean Square 254.178 69.003 3.684 Between groups Within groups 6003.300 87 Total 6511.656 89 2.Independent random sampling from two noma y distributed populations gives the results below. Find a 99% confidence interval estimate of the difference between the means of the two populations, , = 61 X- 380 n- 39 X= 347 02= 28 The confidence interval is (Ht -2) < (Round to four decimal places as needed)O O The necessary value for Za/2 was determined to be 1.960. Recall the given information. Sample 1 Sample 2 n₂ = 300 P₂ = 0.41 Substitute these values to first find the lower bound for the confidence interval, rounding the result to four decimal places. P₁-P2-²a/2 P₂(1-P₂) 7₂ n₁ = 400 P₁ = 0.56 lower bound = = 0.56 0.41 - 1.960 upper bound = P₁(1-P₁) n1 P₁-P₂ + ²a/2V = 0.56 0.41 + = Substitute these values to find the upper bound for the confidence interval, rounding the result to four decimal places. P₁(1-P₁) + P₂(1-P₂) n₁ 7₂ )√ + +1.960 0.56(1 0.56) 0.41(10.41) 300 ✓ 400 0.56(1 0.56) 400 + DELL + 0.41(10.41) 300 Therefore, a 95% confidence interval for the difference in the population proportions (rounding to four decimal places) is from a lower to an upper bound of bound of Si 74°F Sunny ^ C 40)
- Assume that all grade-point averages are to be standardized on a scale between 0 and 4. How many grade-point averages must be obtained so that the sample mean is within 0.007 of the population mean? Assume that a 99% confidence level is desired. If using the range rule of thumb, standard deviation can be estimated as range/4=4-0/4=1. Does this sample size seem practical? The required sample size is ______?Data on the numbers of hospital admissions resulting from motor vehicle crashes are given below for Fridays on the 6th of a month and Fridays on the following 13th of the same month. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Construct a 95% confidence interval estimate of the mean of the population of differences between hospital admissions. Use the confidence interval 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 4 2 3 7 Friday the 13th 10 15 13 15 15 In this example, Ha is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the number of hospital admissions on Friday the 6th minus the number of hospital admissions on Friday the 13th. Find the 95% confidence interval. - 12.28Data on the numbers of hospital admissions resulting from motor vehicle crashes are given below for Fridays on the 6th of a month and Fridays on the following 13th of the same month. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Construct a 95% confidence interval estimate of the mean of the population of differences between hospital admissions. Use the confidence interval 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 7 12 4 Friday the 13th 10 13 15 14 13 In this example, µa is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the number of hospital admissions on Friday the 6th minus the number of hospital admissions on Friday the 13th. Find the 95% confidence interval. |SEE MORE QUESTIONSRecommended textbooks for youMATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons Inc
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