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3 years ago

12

A survey of 800 college seniors resulted in the following crosstabulation regarding their undergraduate major and their plan of

going to graduate school. Compute the row percentages.
A. Yes = 35% and No = 65% Business = 25%, Engineering = 30%, and Others = 45%
B. Yes = 48% and No = 52% Business = 31.5%, Engineering = 36.5%, and Others = 32%

1 answer:

Ira Lisetskai [31]3 years ago

8 0

Incomplete question. Attached is an image of the table.

Step-by-step explanation:

A.

Yes = 35% = $\frac{280}{800} * 100 =$ <u> 35%.</u> and No = 65% = $\frac{520}{800} * 100 =$ <u>65%</u>

Business = 25% = $\frac{70}{280} * 100 =$ <u>25%.</u>

Engineering = 30% = $\frac{84}{280} * 100 =$ <u>30%.</u> and Others = 45% = $\frac{126}{280} * 100 =$ 45%.

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Step-by-step explanation:

Given

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This is calculated as:

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$P_{25} = 25 * \frac{9}{100}$

$P_{25} = \frac{25 * 9}{100}$

$P_{25} = \frac{225}{100}$

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This is then calculated as:

$P_{25} = 2nd\ item + 0.25(3rd\ item-2nd\ item)$

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Solving (c): The 65th percentile

This is calculated as:

$P_{65} = 65 * \frac{N +1}{100}$

$P_{65} = 65 * \frac{8 +1}{100}$

$P_{65} = 65 * \frac{9}{100}$

$P_{65} = \frac{65 * 9}{100}$

$P_{65} = \frac{585}{100}$

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$P_{75} = 75 * \frac{N +1}{100}$

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$P_{75} = 75 * \frac{9}{100}$

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$P_{75} = \frac{675}{100}$

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