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Category > Business & Finance Posted 06 Jun 2017 My Price 3.00

A sample of seven concrete blocks had their crushing strength measured in MPa

A sample of seven concrete blocks had their crushing strength measured in MPa. The results were

1367.6

1411.5

1318.7

1193.6

1406.2

1425.7

1572.4

 

 

 

Ten thousand bootstrap samples were generated from these data, and the bootstrap sample means were arranged in order. Refer to the smallest mean as Y1, the second smallest as Y2, and so on, with the largest being Y10,000. Assume that Y50 = 1283.4, Y51 = 1283.4, Y100 = 1291.5, Y101 = 1291.5, Y250 = 1305.5,

Y251 = 1305.5, Y500 = 1318.5, Y501 = 1318.5, Y9500 = 1449.7, Y9501 = 1449.7, Y9750 = 1462.1, Y9751 = 1462.1, Y9900 = 1476.2, Y9901 = 1476.2, Y9950 = 1483.8, and Y9951 = 1483.8.

a. Compute a 95% bootstrap confidence interval for the mean compressive strength, using method 1 as described on page 386.

b. Compute a 95% bootstrap confidence interval for the mean compressive strength, using method 2 as described on page 386.

c. Compute a 99% bootstrap confidence interval for the mean compressive strength, using method 1 as described on page 386.

d. Compute a 99% bootstrap confidence interval for the mean compressive strength, using method 2 as described on page 386.

 

 

Answers

Alpha Geek
(8)
Status NEW Posted 06 Jun 2017 05:06 PM My Price 3.00

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