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2 years ago

12

What is the slope, m, and y-intercept for the line that is plotted on the grid below? On a coordinate plane, a line goes through

points (0, 4) and (negative 2, 0). m = One-half, (0, –2) m = One-half, (0, 4) m = 2, (0, –2) m = 2, (0, 4)

2 answers:

Snowcat [4.5K]2 years ago

9 0

Answer:

m = 2, (0, –2) Im 90% sure

Step-by-step explanation:

I just took the test :)

cricket20 [7]2 years ago

6 0

Answer:

m = 2, (0, –2) Im 90% sure

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The amount of time the husband and the wife spend on house work is measured for 15 women and their 15 husbands. For the wives th

dolphi86 [110]

Answer:

The value of the test statistic is z = -0.877.

Step-by-step explanation:

Testing the difference in mean time spent on housework between husbands and wives.

At the null hypothesis, we test if there is no difference, that is, the subtraction of the means is 0:

$H_0: \mu_H - \mu_W = 0$

At the alternate hypothesis, we test if there is a difference, that is, the subtraction of the means is different from 0.

$H_1: \mu_H - \mu_W \neq 0$

The test statistic is:

$z = \frac{X - \mu}{s}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, and s is the standard error.

0 is tested at the null hypothesis:

This means that $\mu = 0$

For the wives the mean was 7 hours/week and for the husbands the mean was 4.5 hours/week. The standard deviation of the differences in time spent on house work was 2.85.

This means that $X = 4.5 - 7 = -2.5, s = 2.85$

What is the value of the test statistic for testing the difference in mean time spent on housework between husbands and wives?

$z = \frac{X - \mu}{s}$

$z = \frac{-2.5 - 0}{2.85}$

$z = -0.877$

The value of the test statistic is z = -0.877.

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3 years ago

Which of the lines graphed has a slope of -2 and a y intercept of 3?

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It's out of D or A I can't really see

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2 years ago

In a study of author productivity, a large number of authors were classified according to the number of articles they had publis

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Answer:

Follows are the response to this question:

Step-by-step explanation:

It is the most important positive skewness of the data is the distribution.

Notes:

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2 years ago

The diameter of a circle is 6 inches. What is the circle's circumference?

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Answer:

brainiest? 37.68

Step-by-step explanation:

6 x 2 = 12

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3 years ago

Value of p,q and r if (2^p)*(3^q)*(7^r)=1176

koban [17]

Answer:

p=3 , q=1 , r=2

Step-by-step explanation:

1176=2*2*2*3*7*7

1176=(2^3)*(3^1)*(7^2)

given that 1176 = (2^p)*(3^q)*(7^r)

Comparing Equation 1 & 2

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2 years ago