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GalinKa [24]
2 years ago
14

May someone possibly help me please

Mathematics
1 answer:
nekit [7.7K]2 years ago
5 0

Answer:

24____________________

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Of those women who are diagnosed to have early-stage breast cancer, one-third eventually die of the disease. Suppose a screening
Finger [1]

Answer:

A) Alternative hypothesis; Ha: p_o > ⅔

B) Null hypothesis;

H0: p_o = ⅔

C) There is sufficient evidence to support the claim that the community screening programme was effective

D) p-value = 0

Its less than the significance value and so we will reject the null hypothesis and conclude that the community screening programme was effective

Step-by-step explanation:

A) We are told that ⅓ of those diagnosed eventually die of the disease. Thus, ⅔ is the fraction that will survive the disease.

Thus, the null hypothesis is;

H0: p_o = ⅔

We are told that a screening programme was started to increase the survival rate. Thus,the alternative hypothesis is;

Ha: p_o > ⅔

B) null hypothesis is;

H0: p_o = ⅔

C) 164 out of the 200 women selected survived the disease.

Thus sample proportion is;

p^ = 164/200

p^ = 0.82

For the z-score value, we will use the formula;

z = (p^ - p_o)/√((p_o(1 - p_o)/n)

Now, p_o = ⅔ = 0.67

Thus;

z = (0.82 - 0.67)/√((0.67(1 - 0.67)/200)

z = 4.51

From online p-value from z-score calculator, we have p-value ≈ 0

This is less than the significant level of 0.05 and therefore we will reject the null hypothesis and conclude that the community screening program was effective.

D) p-value ≈ 0

Reject the null hypothesis

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2 years ago
Barney and Joan sold birdhouses at a yard sale. They sold the large birdhouses for $12.00 each and the small birdhouses for $8.7
LekaFEV [45]

the answer is 26 large and 61 small

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3 years ago
Help Please - Overdue - Volume -
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Ok use a calculator and do 11 x 11 x 4 then 7 x 7 x 4 and add the products
7 0
2 years ago
Need help please thx you
erma4kov [3.2K]
$72.

20% of 60 is 12

$12 + $60 = $72
6 0
3 years ago
Think About the Process The length of a rectangle is twice the width. The area of the rectangle
natima [27]

Answer:

length of each square= \sqrt{43} ≈ 6.6

the length of the rectangle = 2\sqrt{43} ≈ 13.1

width of the rectangle ≈ \sqrt{43} ≈ 6.6

Step-by-step explanation:

8 0
2 years ago
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