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2 years ago

7.5583 x 10^4 - 7.2301 x 10^4

Mathematics

1 answer:

Allisa [31]2 years ago

4 0

3237 is your answer.

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(1 pt) In a study of red/green color blindness, 950 men and 2050 women are randomly selected and tested. Among the men, 89 have

Ivahew [28]

Answer: (0.066,0.116)

Step-by-step explanation:

The confidence interval for proportion is given by :-

$p_1-p_2\pm z_{\alpha/2}\sqrt{\dfrac{p_1(1-p_1)}{n_1}+\dfrac{p_2(1-p_2)}{n_2}}$

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 : $\alpha=1-0.99=0.01$

Critical value : $z_{\alpha/2}=z_{0.005}=\pm2.576$

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)

4 0

3 years ago

Which is true? 3+2=4+1 1+2=3+3 0+3=3+1

julsineya [31]

3 + 2 = 4 + 1 is true

1 +2 = 3 + 3 and 0 + 3 = 3+1 is not true

7 0

3 years ago

malia has a recipe for a cake that requires her to use 8 tablespoons of flour but can only find a teaspoon measure in her kitche

Kipish [7]

Answer:

24 Teaspoons

Step-by-step explanation:

If 1 Tablespoon equals 3 Teaspoons, then we can make the equation 3(8)=24.

We can factor out the 1 Tablespoon for 8 and multiply to reach our answer.

1 = 3

8 = ?

8 x 3 = 24

24/1 = 24

? = 24

Thanks,

Greg

4 0

2 years ago

Read 2 more answers

The distance from Earth to the moon is about 4*10 fifth power kilometers. The distance from Earth to Mars is about 5*10 the seve

uysha [10]

Answer: distance from earth to moon is 4x10^5= 4,000,000

The distance from Earth to Mars is about 5x10^7= 50,000,000.

Step-by-step explanation:

8 0

3 years ago

In 2009, Jennifer made $11.50 an hour, and in 2010, she made $12.75 an hour. What is the percent of change in Jennifer’s pay per

PolarNik [594]

Answer:

10.87%

Step-by-step explanation:

Change in pay:

12.75 - 11.50 = 1.25

Percent of change:

1.25/11.50*100% = 10.87% (rounded)

3 0

2 years ago

Read 2 more answers