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juin [17]
3 years ago
13

The diagram below shows the percentages

Mathematics
1 answer:
oee [108]3 years ago
5 0
Important pont ! 80% = 0.8 when you change it in to decimal for calculation.
Total number of home fans = Total number of fans * Ratio in decimal of home fans
Total number of home fans = 64000* 0.8
The Answer is 51200 (D)
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In a representative sample of 1000 adult Americans, only 400 could name at least one justice who is currently serving on the U.S
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Answer:

1) z = -6.32

2) p-value = 0.001 × 10^(-2)

3) we will reject the null hypothesis and conclude that there is enough evidence to support the claim that fewer than half of adult Americans can name at least one justice currently serving on the Supreme Court

Step-by-step explanation:

We are told that In a representative sample of 1000 adult Americans, only 400 could name at least one justice.

Thus:

Sample proportion; p^ = 400/1000 = 0.4

Sample size: n = 1000

We want to find if there is convincing evidence to support the claim that fewer than half of adult Americans can name at least one justice.

Thus, the hypothesis is defined as;

Null hypothesis:H0: p ≥ 0.5

Alternative hypothesis: Ha < 0.5

Formula for the test statistic is;

z = (p^ - p)/√(p(1 - p)/n)

Plugging in the relevant values;

z = (0.4 - 0.5)/√(0.5(1 - 0.5)/1000)

z = -6.32

From online p-value from z-score calculator attached, using z = -6.32; significance level of 0.01; one tailed hypothesis;

We have:

p-value = 0.00001 = 0.001 × 10^(-2)

The p-value is less than the significance level and so we will reject the null hypothesis and conclude that there is enough evidence to support the claim that fewer than half of adult Americans can name at least one justice currently serving on the Supreme Court

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What is close to 3/4? is it 13/26, 11/32, 1/2, or 3/8​
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Answer:

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Step-by-step explanation:

13/26 is 1/2

3/8 is . 375

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I think the answer is 6
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Answer:

the 2nd one (60m minutes)

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