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3 years ago

PLEASE HELP HELP HELP ME ASAPPP PLEASE

Mathematics

2 answers:

azamat3 years ago

8 0

Answer:

4d+7 = 5d-3

4d-5d = -7-3

-d = -10

d = 10

slavikrds [6]3 years ago

7 0

I don’t wanna copy the other dude haha but he/she is correct.

4d + 7 = 5d - 3

4d - 5d = -7-3

-d = -10

d = 10

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Step-by-step explanation:

The confidence interval for proportion is given by :-

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Given : The proportion of men have red/green color blindness = $p_1=\dfrac{89}{950}\approx0.094$

The proportion of women have red/green color blindness = $p_2=\dfrac{6}{2050}\approx0.003$

Significance level : $\alpha=1-0.99=0.01$

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Now, the 99% confidence interval for the difference between the color blindness rates of men and women will be:-

$(0.094-0.003)\pm (2.576)\sqrt{\dfrac{0.094(1-0.094)}{950}+\dfrac{0.003(1-0.003)}{2050}}\approx0.091\pm 0.025\\\\=(0.09-0.025,0.09+0.025)=(0.066,\ 0.116)$

Hence, the 99% confidence interval for the difference between the color blindness rates of men and women= (0.066,0.116)

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