More Hypothesis Testing!

Tonight, please complete the following for homework (you know I'm checking):

Page 469: 9,10,17,19

For 9 and 10, your job is to identify any (and all) mistakes you can find in the work provided. For 17 and 19, you have to do a hypothesis test--that means all four steps! So, for 17 and 19...

1. Write your hypotheses
2. Check the conditions--determine if a one-proportion z-test is appropriate.
3. Use your calculator to find the z-score and p-value, and then make sure you show the work for the z-score and provide a shaded picture.
4. Use an alpha level of .05. Use this alpha level to determine if you "reject the null hypothesis" (if pvalue is less than alpha), or if you "fail to reject the null hypothesis" (if pvalue is greater than alpha). 

Enjoy!

Also, you can find the answers to 2 and 16 (from last night's homework) below: