3 years ago

01

Mathematics

1 answer:

aev [14]3 years ago

4 0

The is The 103.8 Cause Of the math is correct

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A marketing research company desires to know the mean consumption of milk per week among males over age 32. A sample of 710 male

nydimaria [60]

Answer:

(4.5, 4.7)

Step-by-step explanation:

Hi!

Lets call X to the consumption of milk per week among males over age 32. X has a normal distribution with mean μ and standard deviation σ.

$X \sim N(\mu, \sigma)$

When you know the population standard deviation σ of X , and the sample mean is $\hat X$ , the variable q has distribution N(0,1):

$q = \frac{\hat X - \mu}{\sigma} \sim N(0,1)$

Then you have:

$P(-k < q$

This defines a C - level confidence interval. For each C the value of k is well known. In this case C = 0.98, then k = 2.326

Then the confidence interval is:

$(4.6 - 2.326*\frac{0.8}{\sqrt{710}}, 4.6 + 2.326*\frac{0.8}{\sqrt{710}})\\ (4.5, 4.7)$

5 0

4 years ago

Hell and thanks please

pantera1 [17]

Answer:

Step-by-step explanation:

3 0

3 years ago

You spin the spinner once. What is P(factor of 90)?

serg [7]

Answer:

Step-by-step explanation:

d5 7yvjn3f5crc6tv6tvt7gv7g

8 0

3 years ago

Someone help me.... if u guys geniussssss

Goshia [24]

Answer: For a) the Factor is (x+2) (x+1)

Step-by-step explanation: Because (x+2) multiplied by (x+1) gives you x2 + 3x +2.

I don't know your language so I don't know if that was the question or what the other questions were asking, but that's the best I can do

5 0

3 years ago

Factor completely: 2x2 + 6x − 80

Kruka [31]

Correct answer is C.

$2x^2+6x-80
\\2(x^2+3x-40)
\\2(x^2+8x-5x-40)
\\2(x(x+8)-5(x+8))
\\2(x+8)(x-5)$

3 0

3 years ago

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