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scoray [572]
4 years ago
7

A recent study of the relationship between social activity and education for a sample of corporate executives showed the followi

ng results. Social Activity Education Above Average Average Below Average College 30 20 10 High School 20 40 90 Grade School 10 50 130 The appropriate test statistic for the analysis is a(n) ______.a. F-statistic.b. t-statistic.c. Chi-square statistic.d. z-statistic.
Mathematics
1 answer:
jekas [21]4 years ago
7 0

Answer:

Chisquare statistic

Step-by-step explanation:

The most appropriate test to use here is the Chisquare test as it isemployed when testing the relationship between two variables. Both the T statistic and z statistics are the used for testing difference in means. However, in the analysis above, we are given two variables with each having its own levels. Hence, the Chisquare test is the most appropriate in this kind of situation a it measures if a difference exists between the two variables. It tests if they are related or independent of on one another

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Which best explains why these two figures are similar or not similar?
slamgirl [31]

Hey there! :)

Answer:

These two figures are similar because 5/3 equals 15/9.

Step-by-step explanation:

These figures are similar to each other, which means the side-lengths are proportional. Therefore:

\frac{5}{9} = \frac{15}{9}

Side-lengths 15 and 9 are proportional to 5 and 3 because the two fractions are equivalent; the larger rectangle is just 3 times larger.

5 0
4 years ago
Mike and Beatrice purchase a house for $200,000. If the equation V = 200,000(1.03)x represents the value of the house after x ye
notsponge [240]
X=((log(225000/200000)/log(1.03))
X=log(225,000÷200,000)÷log(1.03)
X=3.98 years
6 0
4 years ago
Read 2 more answers
Can anybody help me out on this? Thanks.
Ksenya-84 [330]

Answer:

x = 3

Step-by-step explanation:

Given

y = -2x^2 + 12x +7

Required

The x coordinate of the vertex

Using the general form:

y = ax^2 +bx +c

The x coordinate is:

x = -\frac{b}{2a}

In y = -2x^2 + 12x +7

a = -2

b = 12

c = 7

So, we have:

x = -\frac{b}{2a}

x = -\frac{12}{2*-2}

x = -\frac{12}{-4}

x = \frac{12}{4}

x = 3

8 0
3 years ago
{-5 + y = -4<br> {4x - 4y = 16
Xelga [282]
Your answer should be (5, 1). But im not sure what your asking so I may be wrong.
8 0
4 years ago
If blank ×70=210 what is the value of blank
LenKa [72]
Assume blank is x. So then we have 70 * x=210
or 70x=210. Divide both sides by 70

70x=210
x=30

The value of the blank is 3

P.S. I think I made this too complicated. Just divide both sides by 70 and you will get the answer
4 0
3 years ago
Read 2 more answers
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