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May 4th, 2014, 11:09 PM  #1 
Newbie Joined: May 2014 From: texas Posts: 1 Thanks: 0  Need to check my answers
Could anyone give me the answers to this practice test so i can check mine? Ive uploaded a screenshot since all of the parts of the questions couldnt be copied. 1. Let = 65, = 5, and n = 25; compute P(64 x 67). 2. Let p = :48 and n = 500; compute P(^p :5). 3. Let ^p = 722 4013; compute a 90 percent condence interval for p. 4. Let x = 219, = 35; n = 100; compute a 90 percent condence interval for . 5. Let x = 43:18; s = 21:46; n = 411; compute a 90 percent condence interval for . 6. In a sample of size n = 1000, the number of successes is 730. One has the following hypothesis test of the value hypothesized for the population proportion: H0 : p = :5 Ha : p > :5 7. Given data 3.8 5.89 4.92 3.88 2.65 5.57 6.39 3.24 together with x = 4:54 and s = 1:34, test the following hypothesis of : H0 : = 3:57 Ha : > 3:57 at a signicance level of = :05. Decide whether to reject or fail to reject this hypothesis at a signicance level of = :05. 

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