Review for Statistics Final Exam_SP2014_1

Review for Statistics Final Exam_SP2014_1 - Review for...

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Review for Statistics Final Exam, Spring 2014 Due Monday, April 21, 2014 1. A sample of 14 cans of Brand I diet soda gave the mean number of calories of 23 per can with a standard deviation of 3 calories. Another sample of 16 cans of Brand II diet soda gave the mean number of calories of 25 per can with a standard deviation of 4 calories. At the 1% significance level, can you conclude that the mean number of calories per can are different for these two brands of soda? Assume that samples of the two brands of soda are independently and randomly collected. Use 27 degrees of freedom. 2. The data for prices (in dollars) for two tickets, with online service charges, large popcorn, and two medium soft drinks at a sample of six theater chains are: 36.15 31.00 35.05 40.25 33.75 43.00 At the 5% level of significance, is there evidence that the mean price for two tickets, with online service charges, large popcorn, and two medium soft drinks, is different from $35?
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