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Alja [10]
3 years ago
14

Answer this please i am stuck

Mathematics
2 answers:
love history [14]3 years ago
4 0

Answer:

no one knows i think

Step-by-step explanation:

andriy [413]3 years ago
4 0

Answer:

junkijunki

Step-by-step explanation:

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Please solve the following question.
insens350 [35]

The confidence interval for the difference p1 - p2 of the population proportion is (0.063, 0.329)

<h3>How to determine the confidence interval?</h3>

The given parameters are:

n₁ = 93; n₂ = 80

p₁ = 0.814;  p₂ = 0.618

The critical value at 95% confidence interval is

z = ±1.96

So, we have:

CI = (p_1 - p_2) \pm z * \sqrt{\frac{p_1(1  - p_1}{n_1} + \frac{p_2(1 - p_2)}{n_2}}

Substitute known values in the above equation

CI = (0.814 - 0.618) \pm 1.96 * \sqrt{\frac{0.814 * (1  - 0.814)}{93} + \frac{0.618 * (1 - 0.618)}{80}}

Evaluate

CI = 0.196 \pm 1.96 * \sqrt{0.001628 + 0.00295095}

This gives

CI = 0.196 ± 0.133

Expand

CI = (0.196 - 0.133, 0.196 + 0.133)

Evaluate

CI = (0.063, 0.329)

Hence, the confidence interval is (0.063, 0.329)

Read more about confidence interval at:

brainly.com/question/15712887

#SPJ1

7 0
2 years ago
Please please urgently helpp❤️
svetoff [14.1K]
1. The car is 10km/h faster than the bus

Explanation:

50/2.5=20
50/5=10
20-10=10

2. m=-1.5

Explanation

5+7=12
-5-3=-8
12/-8=-1.5

3. f(-4)=-22

Explanation:

f(-4)=4(-4)-6


4. x=37

Explanation
44=2x-30
74=2x
x=37
5 0
3 years ago
Bill measures the circumference of a circular fish pond to be 28 ft. What is the diameter of the fish pond, rounded to the neare
zalisa [80]
It would be 9 ft. using the knowledge of \pi times the diameter (\pi equals aprox. 3.14) equal the circumference of a circle, and since we know the circumference, we need to divide that by \pi to get the diameter.

equation:  28/3.14=8.913 
                 rounding that would bring it to 9 ft.
7 0
4 years ago
Simplify the expression 13+(x+8)=?
ivolga24 [154]

Answer:

x +21

Step-by-step explanation:

13+(x+8)=

Combine like terms

x +13+8

x +21

3 0
3 years ago
PLEASE HELP AND SHOW WORK, ILL GIVE BRAINLIEST 98 PTS
pav-90 [236]

Answer:

the answer is C

Step-by-step explanation:

3 0
3 years ago
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