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Sever21 [200]
4 years ago
11

A particular state university system has six campuses. On each campus, a random sample of students will be selected, and each st

udent will be categorized with respect to political philosophy as liberal, moderate, or conservative. The null hypothesis of interest is that the proportion of students falling in these three categories is the same at all six campuses.
a. On how many degrees of freedom will the resulting X2 test be based?
b. How does your answer in Part (a) change if there are seven campuses rather than six?
c. How does your answer in Part (a) change if there are four rather than three categories for political philosophy?
Mathematics
1 answer:
Ahat [919]4 years ago
6 0
A The first one or C
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Natali5045456 [20]

This is a combination problem. Order does not matter and the books are all different. You would write this as 21C5 or \tbinom{21}{5}. Combinations are not fractions.

The answer is \frac{21 * 20 * 19 * 18 * 17}{1 * 2 * 3 * 4 * 5}

which = 20349 different ways these books can be chosen.


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3 years ago
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Calculate √62 correct to 1 decimal place.
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Craig bought 8 folders and notebooks for school folders costs 50 cents and notebooks costs a $50 Craig spent a total of $6 how m
stellarik [79]

The number of folders and notebooks in the equation is given by 3 and 5 respectively.

<h3>How to find number of folders and notebooks?</h3>

let

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The equation:

x + y = 8

0.50x + 1.0y = 6

From (1)

x = 8 - y

Substitute x = 8 - y into (2)

0.50(8 - y) + 1.0y = 6

4 - 0.50y + 1.0y = 6

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SOMEONE, PLEASE HELP FAST!!! FOR BRAINLIEST!!!!
Pani-rosa [81]

Answer:

Volume of rectangular prism:

V1 = base x height = 4 x 6 x 12 = 288 ft3

Volume of triangular prism:

V2 = base x height = 4 x (6/2) x 6 =  72 ft3

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Hope this helps!

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Expand and simplify 2(5x + 3) - 2(2x - 3)
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Answer: It is 6x+12

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3 years ago
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