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kiruha [24]
3 years ago
8

According to the Pew report, 14.6% of newly married couples in 2008 reported that their spouse was of another race or ethnicity

(CNNLiving, June 7, 2010). In a similar survey in 1980, only 6.8% of newlywed couples reported marrying outside their race or ethnicity. Suppose both of these surveys were conducted on 120 newly married couples. Use Table 1.
a.
Specify the competing hypotheses to test the claim that there is an increase in the proportion of people who marry outside their race or ethnicity.

H0: p1 − p2 ≤ 0; HA: p1 − p2 > 0
H0: p1 − p2 = 0; HA: p1 − p2 ≠ 0
H0: p1 − p2 ≥ 0; HA: p1 − p2 < 0
Mathematics
1 answer:
sweet [91]3 years ago
3 0
Shisiekkd. Wklwlwl kalwow wish is owl am dh Wii’s all wish wishfully usnan2839 7 hessian
You might be interested in
Determine the equation of the line with slope 3/4 passing through the point 4,0
Vitek1552 [10]

Answer:

y = \frac{3}{4}x - 3

Step-by-step explanation:

If it has a slope of 3/4, then it will look like this:

y = \frac{3}{4}x + b

If it passes through (4, 0), than y = 0 when x = 4

y = \frac{3}{4}(4) + b

y = 3 + b

b = -3

Therefore, the equation is y = \frac{3}{4}x - 3.

8 0
2 years ago
What is the value of -12- (-35)?
maksim [4K]

Answer:

-12-(-35)

=-12+35

=23

5 0
3 years ago
Read 2 more answers
What is the domain and range for the following function and its inverse?
Basile [38]

Answer:

"f(x)  

domain: all real numbers, range: all real numbers  

f–1(x)  

domain: all real numbers, range: all real numbers"

Step-by-step explanation:

We can use the fact that the domain of a function and the range of its inverse are equal.

Also, the range of the function and the domain of its inverse are equal as well.

<em>Looking at the function f(x/ = -x + 5, we see that this is a line with a negative slope of 1 and a y-intercept of +5. </em>

As we know from the graph of lines, there is no restricting values in x and y. So for the original function,  domain is the set of all real numbers and the range is the set of all real numbers.

For the inverse, the range is set of all real numbers and domain is also the set of all real numbers.

First answer choice is right.

4 0
3 years ago
Is 272 oz greater than 20 lb
Karolina [17]
We know that 1 lb = 16 oz
So lets convert the 20 lb to oz and then compare the two quantities in consistent units.
If 1 lb = 16 oz then 20 lb are equal to 20*16 oz, that is
20 lb = 20*16 oz = 320 oz
therefore,
320 oz are greater than 272 oz, or,
20 lb are greater that 272 oz
3 0
3 years ago
Two cables support a 800​-lb ​weight, as shown. Find the tension in each cable.
jeka94

Answer:

  • 892 lb (right)
  • 653 lb (left)

Step-by-step explanation:

The weight is in equilibrium, so the net force on it is zero. If R and L represent the tensions in the Right and Left cables, respectively ...

  Rcos(45°) +Lcos(75°) = 800

  Rsin(45°) -Lsin(75°) = 0

Solving these equations by Cramer's Rule, we get ...

  R = 800sin(75°)/(cos(75°)sin(45°) +cos(45°)sin(75°))

     = 800sin(75°)/sin(120°) ≈ 892 . . . pounds

  L = 800sin(45°)/sin(120°) ≈ 653 . . . pounds

The tension in the right cable is about 892 pounds; about 653 pounds in the left cable.

_____

This suggests a really simple generic solution. For angle α on the right and β on the left and weight w, the tensions (right, left) are ...

  (right, left) = w/sin(α+β)×(sin(β), sin(α))

5 0
3 years ago
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