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3 years ago

Help me out! (URGENT) I need help with numbers 1-6 please

Mathematics

1 answer:

Alex Ar [27]3 years ago

4 0

Answer:

Step-by-step explanation:

1. Blank= 5

2. Blank= 10 (I believe)

3. Blank= 8

4. Blank= 13 (I believe)

5. Blank= 12

6. Blank= 7

Hope it helps!

OwO

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What is the difference between intersecting and perpendicular lines? Can two lines exist that are not intersecting or parallel?

sertanlavr [38]

Intersecting lines are lines that meet at some point while perpendicular lines are intersecting lines that makes a right angle at the point of intersection.

Two line can either be intersecting or perpendicular. It is not possible to have two line that is neither intersecting or parallel.

7 0

3 years ago

Based upon a smaller sample of only 170 st. paulites, what is the probability that the sample proportion will be within of the p

Pepsi [2]

Given that in 2008 the Better Business Bureau settled 75% of complaints they received (USA Today, March 2, 2009). Suppose you have been hired by the Better Business Bureau to investigate the complaints they received this year involving new car dealers. You plan to select a sample of new car dealer complaints to estimate the proportion of complaints the Better Business Bureau is able to settle. Assume the population proportion of complaints settled for new car dealers is .75, the same as the overall proportion of complaints settled in 2008.

Part a) :

Suppose you select a sample of 450 complaints involving new car dealers. Show the sampling distribution of (to 4 decimals).

Population proportion = 0.75
sample size. n = 450
$Standard\ error=\sqrt{\frac{p(1-p)}{n}} \\ \\ =\sqrt{\frac{(0.75)(0.25)}{450}} = 0.0204$

Therefore, the sampling distribution has a proportion of 0.75 and a standard error of 0.0204.

Part b) :

Based upon a sample of 450 complaints, what is the probability that the sample proportion will be within .04 of the population proportion (to 4 decimals)?

The probability that the sample proportion will be within 0.04 of the population proportion is given by:

$P(p\ \textless \ 0.75\pm0.04)=2P\left(z\ \textless \ \frac{0.04}{0.0204} \right)-1 \\ \\ 2P(z\ \textless \ 1.961)-1=2(0.97505)-1=1.9501-1 \\ \\ =\bold{0.9501}$

Therefore, the probability that the sample proportion will be within .04 of the population proportion is 0.9501.

Part C:

Suppose you select a sample of 200 complaints involving new car dealers. Show the sampling distribution of (to 4 decimals).

Population proportion = 0.75
sample size. n = 200
$Standard\ error=\sqrt{\frac{p(1-p)}{n}} \\ \\ =\sqrt{\frac{(0.75)(0.25)}{200}} = 0.0306$

Therefore, the sampling distribution has a proportion of 0.75 and a standard error of 0.0306.

Part D):

Based upon the smaller sample of only 200 complaints, what is the probability that the sample proportion will be within .04 of the population proportion (to 4 decimals)?


The probability that the sample proportion will be within 0.04 of the population proportion is given by:

$P(p\
 \textless \ 0.75\pm0.04)=2P\left(z\ \textless \ \frac{0.04}{0.0306} 
\right)-1 \\ \\ 2P(z\ \textless \ 1.306)-1=2(0.90429)-1=1.80858-1 \\ \\
 =\bold{0.8086}$

Therefore, the probability that the sample proportion will be within .04 of the population proportion is 0.8086.

8 0

3 years ago

BRAINLIESTTTTTTT!!!!!

KatRina [158]

So I think I understand this so,
a) yes there is a correlation because the more workers they have the greater number of products they can produce
b) y=120x +80
c) The slope (80) indicates that it increases by 80 points or 80 products and the y intercept (120) indicates that at 0 employees there were 120 products being made.

5 0

3 years ago

Help me with this please

goldfiish [28.3K]

Answer:

Step-by-step explanation:

You need to use PEMDAS

No Parenthesis

4^2 is 16, since 4 * 4 = 16

Now the equation is 24 - 16 + 2*2

2 * 2 = 4

24 - 16 + 4

24 - 16 = 8

8 + 4 = 12

Hope this helps

6 0

3 years ago

Read 2 more answers

The cone in the diagram has the same height and base area as the prism. What is the ratio of the volume of the cone to the volum

Reika [66]

Answer:

$ratio=\frac{1}{3}$

Step-by-step explanation:

step 1

Find the volume of the cone

The volume of the cone is equal to

$V_c=\frac{1}{3}Bh$

where

B is the area of the circular base

h is the height of the cone

step 2

Find the volume of the prism

The volume of the cone is equal to

$V_p=Bh$

where

B is the area of the base of the prism

h is the height of the prism

step 3

Find the ratio of the volume of the cone to the volume oft the prism

$ratio=\frac{V_c}{V_p}$

substitute the values

$ratio=\frac{\frac{1}{3}Bh}{Bh}$

simplify

$ratio=\frac{1}{3}$

5 0

3 years ago