HW8 - STAT 500 HW 8 1. Problem 5.80 f. False i. False 2....

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
STAT 500 HW 8 1. Problem 5.80 f. False i. False 2. Problem 5.81 a. False A Type II error is committed when we fail to reject the null hypothesis Ho, when Ho is actually false. b. True If we make a type II error, we have missed detecting an event or effect when there actually was one. c. False. The probability of making a type II error is equal to β. d. False If we increase the probability of making a type II error, we decrease the probability of making a type I error. 3. Problem 5.94 C, E and G are true. 4. Problem 5.96 a. Normally distributed, to population mean (μ) b. Narrowed or smaller c. Wider or larger d. Central limit theorem e. Type II error 5. Problem 5 from HW Ho = The drug has severe side effects Ha = The drug has no severe side effects 6. Problem 6 from HW Ho: π = 0.5
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Ha: π < 0.5 Left tailed test α = 0.05 15/40= 0.37 40*0.5 = 20 > 5 40*0.5 = 20 > 5 P- value Z = (0.37-0.5) / √((0.5*0.5) / 40) = -1.56 P(z<-1.56) = 0.0594 Then p-value = 0.0594 Since p-value > α, we fail to reject the null hypothesis at α = 0.05.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/20/2008 for the course STAT 500 taught by Professor Chow during the Fall '08 term at Penn State.

Page1 / 3

HW8 - STAT 500 HW 8 1. Problem 5.80 f. False i. False 2....

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online