21. Based on your interval, is it plausible the drug has diabetes? (The drug would have no impact if p₁ = p2).

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Chapter1: Starting With Matlab
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Help with 21 please
17-21: Use the following scenario to answer the questions that follow.
A study was conducted examining the effectiveness of the drug teplizumab at delaying or
preventing Type I diabetes. Out of n₁ = 38 people who took the drug, P = 42% of them
developed diabetes. Out of n2 = 38 people who did not take the drug, p2 = 68% of them
developed diabetes. Estimate at 99% confidence the difference pi - P2.
17. Find the value of z or t, whichever is appropriate. Sketch the appropriate bell curve.
11일을
1 - 0,01
= 0.995
2
005
√ P₁L1-P₁) + P₂ (1-6)
ni
n₂2
P1-P21Z.SE
-аа
2-2.575
18. Calculate the standard error. Write the formula with the correct values inserted.
(1-P₁) + P₂ (1-P2
n₁
n
12
2
19. Calculate the margin of error. Write the formula with the correct values inserted.
2.575 x 1102 -0.28
20. Calculate the interval. Write the formula with the correct values inserted.
=
-0.54
(0.42-0.6%) - 0.29
(0.42 + 0.608) +0₂28 - 0₂02
0.42 (1-0.42) + 0 68 (1-68)
38
38
0.11007 SE-0.1102
.005
41-68 -
(-.541
*
21. Based on your interval, is it plausible the drug has no impact on developing
diabetes? (The drug would have no impact if p₁=p2).
-26 ±200
·02)
576
Transcribed Image Text:17-21: Use the following scenario to answer the questions that follow. A study was conducted examining the effectiveness of the drug teplizumab at delaying or preventing Type I diabetes. Out of n₁ = 38 people who took the drug, P = 42% of them developed diabetes. Out of n2 = 38 people who did not take the drug, p2 = 68% of them developed diabetes. Estimate at 99% confidence the difference pi - P2. 17. Find the value of z or t, whichever is appropriate. Sketch the appropriate bell curve. 11일을 1 - 0,01 = 0.995 2 005 √ P₁L1-P₁) + P₂ (1-6) ni n₂2 P1-P21Z.SE -аа 2-2.575 18. Calculate the standard error. Write the formula with the correct values inserted. (1-P₁) + P₂ (1-P2 n₁ n 12 2 19. Calculate the margin of error. Write the formula with the correct values inserted. 2.575 x 1102 -0.28 20. Calculate the interval. Write the formula with the correct values inserted. = -0.54 (0.42-0.6%) - 0.29 (0.42 + 0.608) +0₂28 - 0₂02 0.42 (1-0.42) + 0 68 (1-68) 38 38 0.11007 SE-0.1102 .005 41-68 - (-.541 * 21. Based on your interval, is it plausible the drug has no impact on developing diabetes? (The drug would have no impact if p₁=p2). -26 ±200 ·02) 576
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