Questions on standard curve

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Reference no: EM13104716

1. A man is in the process of buying a new car. He has a choice of 3 engine makes, 7 body styles and 10 colors. How many different cars does he have to choose from?

2. True or False? If false, correct it. For a given situation, the longer your confidence interval is, the lower your confidence in it is (why?).

3. What area under the standard normal curve falls outside the Z values 2.5 and 2.5? (why?)

Reference no: EM13104716

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