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Home/ Questions/4) Given that z is a standard normal random variable, find z for each situation (using...
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James Portman
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James Portman
Asked: April 13, 20222022-04-13T09:33:33+00:00 2022-04-13T09:33:33+00:00In: Statistics-And-Probability

4) Given that z is a standard normal random variable, find z for each situation (using…

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4) Given that z is a standard normal random variable, find z for
each situation (using excel):

The area to the left of z is .9750.

The area between 0 and z is .4750.

The area to the left of z is .7291.

The area to the right of z is .1314.

The area to the left of z is .6700.

The area to the right of z is .3300.

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  1. Alexander Evans
    2022-04-13T09:33:36+00:00Added an answer on April 13, 2022 at 9:33 am

    Excel has a function called NORMSINV (x), which returns the inverse distribution of the normal cumulative distribution.

    1.

    =NORMSINV(0.9750)

    1.959964

    2.

    =NORMSINV(0.475+0.5)

    1.959964

    3.

    =NORMSINV(0.7291)

    0.610093

    4.

    =NORMSINV(1-0.1314)

    1.119798

    5.

    =NORMSINV(0.6700)

    0.439913

    6.

    =NORMSINV(1-0.3300)

    0.439913

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  2. Mary Anderson
    2022-04-13T12:52:12+00:00Added an answer on April 13, 2022 at 12:52 pm


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