Thursday HW!

More hypothesis testing! Today we did some work discussing alpha levels and writing conclusions....tomorrow we'll wrap up our chapter 20 notes with Mr. Cawley and then we'll have a multiple choice take home quiz this weekend! Yay!

Tonight, please complete the following:

Page 471: 21, 23, 25

Make sure you do all 4 steps of the hypothesis test!
1. Hypotheses
2. Conditions
3. Math
4. Conclusion

For your conclusions, use the following writing template:
Since the p-value of  (p-value) is lower/higher than the (alpha level) % significance level, we will reject/fail to reject the null hypothesis. There is/is not significant evidence to conclude (describe the alternative hypothesis in words, in context) based on the given sample. 

Here's an example based on the "explosives" problem in our homework (quiz C):
Since the p-value of 0.126 is higher than the 20% significance/alpha level, we will fail to reject the null hypothesis. There is not evidence to suggest that the device is effective in detecting explosives, based on this sample.