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Mazyrski [523]
3 years ago
9

In the section describing the survey methods, the report states, “For results based on the total sample of national adults, the

margin of sampling error is ±4 percentage points at the 95% confidence level.” Interpret the meaning of this statement in terms of the poll. Use any statistic given in the report as an example to explain your interpretation.
Mathematics
1 answer:
Yakvenalex [24]3 years ago
8 0

Answer:

The interpretation of that same problem is listed throughout the section below on explanation.

Step-by-step explanation:

<u>Interpretation:</u>

  • Researchers seem to be confident with 95% that the sample selection standard error seems to be + as well as - 4 percent respectively.
  • This same margin of sampling error would then decrease from either the mean or average value by four percentage points smaller or even larger, it describes the survey method.

So that the above is the right answer.

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Trevor plans on buying a car. Four banks offer the annual interest rates shown.
mote1985 [20]

Solution

In order to find  greatest to least number, we have to convert the given fractions into decimals.

3 \frac{1}{10} % = 3 + 1/10 = 3 + 0.10 = 3.10%

3 \frac{2}{5}% = 3 + 2/5 = 3 + 0.40 = 3.40%

3 \frac{1}{4} %= 3 + 0.25 = 3.25%

3 \frac{1}{3}% = 3 + 0.33 = 3.33%

Now we can easily, compare the numbers and write from greatest to least.

3.40%, 3.33%, 3.25%, 3.10%

Greatest to least  = 3 2/5%, 3 1/3%3, 3 1/4%,  1/10%,

Thank you :)

8 0
3 years ago
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Travis bought a pair of shoes that originally cost $74.99 the shoes were on sale for 20% off and sales tax was 7% approximately
DedPeter [7]

The answer is astro world, because he sent people to see Juice World instead:

Step-by-step explanation:

4 0
3 years ago
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my final balance after 48 months was 896.00 if i originally put 800.00 into the bank what was the interest rate
Tems11 [23]
48 - 896.00 = 884
884-800=84
so the interest rate was 84

7 0
3 years ago
I need help with number 5, find the area, thank you
ollegr [7]

Answer:

<em><u>96</u></em>

<em><u>Step-by-step explanation:</u></em>

<em><u>So for number  5 your going to multiply 8 and 12</u></em>

<em><u /></em>

<em><u>8 x 12 = 96</u></em>

<em><u>So the answer for 5 is </u></em>

<em><u>Answer: 96</u></em>

4 0
3 years ago
Which expression is equivalent to the following?
xeze [42]

Step-by-step explanation:

\sin^{4}x  \:  -  \cos^{4} x = (\sin^{2}x)^{2}  - (\cos^{2}x)^{2}

= (\sin^{2}x)^{2}  - (1 - \sin^{2}x)^{2}

= \sin^{4}x - (1 - 2\sin^{2}x + \sin^{4}x)

= 2\sin^{2}x - 1

=  - \cos2x

Note: I used the identity

{ \sin }^{2} x =  \frac{1}{2} (1 -  \cos \: 2x)

for the last step.

PS. I love proving trigonometric identities!

3 0
3 years ago
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