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20 May, 22:38

In a sample of 35 high school seniors, 14 of them are attending college in the fall. Find the 95% confidence interval for the true proportion of high school seniors that will attend college in the fall from the population.

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  1. 20 May, 23:11
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    Between 23.77% and 56.23%

    Step-by-step explanation:

    On your TI-84

    Press STAT

    Use right arrow to scroll over to highlight TESTS

    Use down arrow to scroll down to A:1-PropZInt ...

    Press ENTER

    Make the screen read

    x:14

    n:35

    C-Level:0.95

    Calculate

    highlight Calculate

    Press ENTER

    See this:

    (.2377,.5623)

    p (hat) =.4

    n=35

    The confidence interval is 0.2377 < p < 0.5623

    Between 23.77% and 56.23%
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