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Hunter-Best [27]
3 years ago
8

May you please help me?

Mathematics
2 answers:
IRISSAK [1]3 years ago
7 0

Answer:

.35 .49  .16

Step-by-step explanation:

13/37 18/37  6/37

Licemer1 [7]3 years ago
7 0
.35.49.16 is the correct answer
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A survey of 340 randomly chosen US adults found that 60% of the 150 men and 50% of the 190 women ran a five-kilometer race durin
Andrej [43]

Answer:

The p-value is less than the significance level, so we will reject the null hypothesis, and conclude that at 5% significance level, the proportion for women that ran 5 km is more than the proportion of male that ran the 5 km. Thus, women are more likely to run the 5 km race.

Step-by-step explanation:

We are given;

Number of males selected; n₁ = 150

Number of females selected; n₂ = 190

Proportion of the males; p₁ = 0.6

Proportion of females; p₂ = 0.5

Let's define the hypotheses;

Null hypothesis; H0: p₁ ≥ p₂

Alternative hypothesis; Ha: p₁ < p₂

Now, the z score formula for this is;

z = (p₁ - p₂)/√(p^(1 - p^))(1/n₁ + 1/n₂))

Where;

p^ = (p₁ + p₂)/2

p^ = (0.6 + 0.5)/2

p^ = 0.55

Thus;

z = (0.6 - 0.5)/√(0.55(1 - 0.55))((1/150) + (1/190))

z = 0.1/0.0543

z = 1.84

From online p-value from z-score calculator attached, using z = 1.84, significance level = 0.05, one tailed hypothesis, we have;

P-value = 0.033

The p-value is less than the significance level, so we will reject the null hypothesis, and conclude that at 5% significance level, the proportion for women that ran 5 km is more than the proportion of male that ran the 5 km. Thus, women are more likely to run the 5 km race.

Although if we check at 0.01 significance level, we will not have the same answer as the p-value will be greater.

3 0
3 years ago
Help ur bestie out plzzz (puppy eyes) and show me how u got the answer thx
Mama L [17]

I think the answer is D. But I am not sure if that's the right answer.

8 0
2 years ago
Xy = –16. What is the constant of variation for this relationship?
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Direct variation is y=kx and inverse variation is y=k/x, in this case:

y=-16/x

So this is an inverse variation with a constant of -16
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The two fractions are divisible by 2, can be broken down 
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A rectangular prism has a length of 312 in., a width of 5 in., and a height of 112 in.
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Multiply the dimensions to get 174,720 in^3
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