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Brums [2.3K]
3 years ago
9

Free.... f..... r.... e.... e... FREE POINTS! (and brainliest ofc) 50 + 50 means..... 100!!! (pops up as 50 for you guys, sorry!

)
Mathematics
2 answers:
alexandr1967 [171]3 years ago
6 0

Answer:

:)

Step-by-step explanation:

Marysya12 [62]3 years ago
4 0

Answer:

you're a g love you so much bro

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A research company desires to know the mean consumption of meat per week among people over age 40. A sample of 610 people over a
Papessa [141]

Answer: (3.0,\ 3.2)

Step-by-step explanation:

Confidence interval for population mean is given by :-

\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}  (1)

, where \overline{x} = Sample mean

z_{\alpha/2}= Critical z-value

\sigma = Population standard deviation.

n= Sample size.

As per given , we have

n= 610

\sigma=1.1

\overline{x}=3.1

Significance level for 85% confidence : \alpha=1-0.85=0.15

By z-table critical two tailed z-value : z_{\alpha/2}=z_{0.075}=1.44

Put all values in (1) , we get

3.1\pm 1.44\dfrac{1.1}{\sqrt{610}}

3.1\pm 1.44\dfrac{1.1}{24.698}

3.1\pm 0.064

=(3.1-0.064,\ 3.1+0.064)=(3.036,\ 3.164)\approx(3.0,\ 3.2)

Hence, the 85% confidence interval for the mean consumption of meat among people over age 40.  = (3.0,\ 3.2)

5 0
3 years ago
HELP PLS<br> Classify the triangle by its angles &amp; sides if ∠A = 85 &amp;
omeli [17]
The angle of the triangle would be 72
3 0
2 years ago
If you pay $3.36 in tax, what was the original price at an 8% sales tax
yanalaym [24]

Answer:

  • $42

Step-by-step explanation:

<u>Given</u>

  • 8% = $3.36
  • 100% = x

<u>Cross multiply and solve for x:</u>

  • x = $3.36*100/8 = $42
4 0
2 years ago
Is 80 to 20 a 75% decrease
gtnhenbr [62]

Answer:

yes it is a 75% decrease

Step-by-step explanation:

since 80-20=60

60/80=6/8=3/4

3/4=75%

8 0
3 years ago
Read 2 more answers
Twice the sum of x and 5
SIZIF [17.4K]
I believe it would be x+5^2
3 0
3 years ago
Read 2 more answers
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