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Vesnalui [34]
3 years ago
11

What is the answer of this question

Mathematics
2 answers:
Anna71 [15]3 years ago
8 0
The correct answer is 1/7
bixtya [17]3 years ago
4 0
The answer i got is 1/7
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Where is the question
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How do I solve this STATS question?
k0ka [10]
We have the following data:

Margin of Error = E = 2.7 % = 0.027
Sample size = n = 900
Proportion of adults in favor = p = 60% = 0.6

We need to find the confidence level. For this first we need to find the z value.

The margin of error for a population proportion is given as:

E=z* \sqrt{ \frac{p(1-p)}{n} }

Using the values, we get:

0.027=z* \sqrt{ \frac{0.6*0.4}{900} } \\  \\ &#10;0.027=z*0.016 \\  \\ &#10;z= \frac{0.027}{0.01633}  \\  \\ &#10;z=1.65

As, seen from the z table, z=1.65 corresponds to the confidence level 90%. So, the answer to this question is option B
7 0
3 years ago
Hurryyyyyy!!! <br>which expression is equivalent to 7(1+3)? <br>a.1+21<br>b.7+21<br>c 7+3<br>d.7+4
n200080 [17]

Answer:

b. 7+21

Step-by-step explanation:

If you do 1+3=4 and then 4 times 7 that equals 28. When you do 7+21 that equals 28 too. So b is the answer

4 0
3 years ago
Assume two radar stations which are 39 miles apart are both tracking a plane. At a given moment, the angle between station 1 and
SpyIntel [72]

Answer:

37.3 miles

Step-by-step explanation:

180 - 59.83 - 55.54 = 64.63°

39/sin64.63 = X/sin59.83

X = 37.3157217 miles

6 0
3 years ago
A rectangular field is twelve times as long as it is wide. If the perimeter of the field is 1690 feet, what are the dimensions o
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The width of the field is 65 feet.

The length of the field is 780 feet.

6 0
3 years ago
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