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Tuesday, March 31, 2015

2'sDay HW

Tonight, please complete the 2 proportion z test and 2 proportion z interval worksheet provided in class! (titled Chapter 22 Quiz B). 

Tomorrow we'll wrap up our notes on chapter 22, then do some practice tomorrow and Thursday!

HomeworK: Chapter 22 Quiz B
In 2000, the United Nations claimed that there was a higher rate of illiteracy in men than in women from the country of Qatar. A humanitarian organization went to Qatar to conduct a random sample. The results showed that 45 out of 234 men and 42 out of 251 women were classified as illiterate on the same measurement test.

1.       Do the samples above provide evidence that the United Nations’ claim was correct—that there was a higher illiteracy rate in men than in women (in Qatar)? Test an appropriate hypothesis and state your conclusion.


2.       Show the appropriate mathematics and calculate a 95% confidence interval for the difference in proportions of illiteracy in men and women from Qatar. Then, interpret your interval.

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