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aliina [53]
3 years ago
15

Which of the following would be a correct interpretation of a​ 99% confidence interval such as 4.1​5.6? Choose the correct answe

r below. A. We are​ 99% confident that the interval from 4.1 to 5.6 actually does contain the true value of . B. It means that​ 99% of sample means fall between 4.1 and 5.6. C. It means that​ 99% of all data values are between 4.1 and 5.6. D. There is a​ 99% chance that will fall between 4.1 and 5.6.
Mathematics
1 answer:
Alik [6]3 years ago
3 0

Answer:

A. We are​ 99% confident that the interval from 4.1 to 5.6 actually does contain the true value of population mean.

Step-by-step explanation:

x% confidence interval:

A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.

In this question:

99% confidence interval means that we are 99% sure that this interval contains the population mean.

Interval between 4.1 and 5.6.

So the correct answer is given by option A.

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A​ one-week study revealed that​ 60% of a warehouse​ store's customers are women and that​ 30% of women customers spend at least
qaws [65]

Answer: The probability of a randomly chosen customer to be a woman who spends at least $250 is 0.18 or 18%

Step-by-step explanation:

60% of the customers are women, and 30% of the women spend at least $250.

We want to find the probability for a randomly selected customer to be a woman that spends at least $250

first, the probability of a random customer to be a woman is 60% or 0.6 in decimal form.

And 30% of those 60% spend at least $250, so the probability the product of those two, this is:

P = 0.6*0.3 = 0.18

So the probability of a randomly chosen customer to be a woman who spends at least $250 is 0.18 or 18%

8 0
4 years ago
Plz help due tonight
Monica [59]

Answer:

My memory might be a bit cloudy, but I think it's A) AB and C) BC, because of the little lines they each have, which indicate some type of order or something.

I'm sorry if this doesn't explain too much, I tried friend.

5 0
3 years ago
Can someone pls show how to do this is with explanation
Lisa [10]

Answer:

60⁰

Step-by-step explanation:

Angle sum of a triangle=180⁰

x + x + x = 180^{0}

3x =  {180}^{0}

x =  \frac{180}{3}

x =  {60}^{0}

This is an equilateral triangle as all the angles are equal.

4 0
3 years ago
For every 2 hours that Robert spends studying for a math test he spends 3 hours working on English. If he spends 21 hours one mo
Tatiana [17]

Answer:

31.5 hours

Step-by-step explanation:

2 hours for every 3 hours English so 21 divided by 2 =10.5 so 3 times 10.5 = 31.5 hours

5 0
3 years ago
GIVING BRAINLIEST HELP
sergiy2304 [10]

Answer:

C)  -4(4p-5w+3)

Step-by-step explanation:

Your question is incomplete.

Even Tho A) -2(8p-10w+6) and C)  -4(4p-5w+3) Both equal to -16p+20w-12.

We are finding a equivalent to -16p+20w-12 and GCF. Therefore the answer is C) -4(4p-5w+3)

4 0
3 years ago
Read 2 more answers
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