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Amiraneli [1.4K]
3 years ago
8

Sue and Javier are working on a statistics project to estimate the proportion of students at their school who have a pet dog. Su

e selects a random sample of 81 students from the 2,400 students at their school, and Javier selects a separate random sample of 64 students. They will both construct a 90 percent confidence interval from their estimates. Consider the situation in which the sample proportion from Sue’s sample is equal to the sample proportion from Javier’s sample. Which of the following statements correctly describes their intervals?
Mathematics
1 answer:
JulsSmile [24]3 years ago
5 0

Answer:

E) The width of Sue's interval will be narrower than Javiers

Step-by-step explanation:

In confidence intervals, as sample size increases, the width of the confidence interval decreases.

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Which of the following statements best describes the graph of −5x + 2y = 1?
Nina [5.8K]

First, we determine that the given equation in this item is a linear equation. Thus, it should be a straight line. With this, we are left with the third and fourth choice. Then, we substitute the given data points to the equation and see if the points satisfy the given.

Choice 3:

<span>            (1,3)   :    (-5)(1) + (2)(3) = 1   TRUE</span>

<span>            (3,8)   :    (-5)(3) + 2(8) = 1      TRUE</span>

<span>            (-3,-7) :    (-5)(-3) + (2)(-7) = 1 TRUE</span>

 

Choice 4:

<span>            (4,-3)  :  (-5)(4) + (2)(-3) ≠ 1     FALSE</span>

<span>            (-1,2)   : (-5)(-1) + (2)(2) ≠ 1     FALSE</span>

<span>            (-4,5)   : (-5)(-4) + (2)(5) ≠ 1    FALSE</span>

 

<span>Thus, the answer is the third choice.</span>

5 0
3 years ago
Read 2 more answers
In circle p what is the measure of arc ab
S_A_V [24]
Remember the arc is equal to the central angle, so ab will equal angle APB. they told you angle APB is a right angle, how many degrees is this? that is what ab will be also:)
4 0
3 years ago
I just drew a blank can someone please help
PIT_PIT [208]

Answer:

≈ 542,029 copies

Step-by-step explanation:

37,400 copies represents a 6.9% of the total copies sold to date.

Therefore; Copies sold to date will be 100%

Thus;

Total number of copies sold = (37,400/6.9)× 100

                                               = 542,028.99 copies

                                               <u>≈ 542029 copies</u>

3 0
2 years ago
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Who wants to help me out? :)))
Free_Kalibri [48]

Answer:

is that a test or homework

Step-by-step explanation:

I'm a kid so I have no idea

6 0
2 years ago
43⋅(100/25)−50 HELP i need somebodys HELP not just anybodys HeeeeLP!!
Alina [70]

the answer is 122 because you times 43 x 4 - 50 =122

5 0
3 years ago
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