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r-ruslan [8.4K]
2 years ago
8

The scatter plot shows the heights ( in inches) and the shoe sizes of eight men. What is the height of the man whose shoe size i

s 12?
NO LINKS!!!​

Mathematics
1 answer:
Bas_tet [7]2 years ago
6 0

Answer: 72 inches

Step-by-step explanation:

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A city council is deciding whether or not to spend additional money to reduce the amount of traffic. The council decides that it
garri49 [273]

Answer:

t = 2.9272 > 1.708 at 25 degrees of freedom

null hypothesis is rejected

The council decides that it will increase the transportation budget if the amount of waiting time for drivers is not exceeds 18 minutes

Step-by-step explanation:

<u>Step (i):</u>-

A sample of 26 main roads results in a mean waiting time of 21.1 minutes with a sample standard deviation of 5.4 minutes.

Given sample size 'n' = 26

The mean of the sample 'x⁻ = 21.1 min

Standard deviation of the sample 'S' = 5.4 min

The Population mean 'μ' = 18min

<u>Step(ii)</u>:-

<u>Null hypothesis: H₀</u> :  The council decides that it will increase the transportation budget if the amount of waiting time for drivers exceeds 18 minutes.

'μ' > 18min

<u>Alternative hypothesis</u> :H₁:  

'μ' <18min

<u>Level of significance :</u> ∝=0.05

Degrees of freedom γ = n-1 = 26-1 =25

The test statistic

 t  = \frac{x^{-}-mean }{\frac{S}{\sqrt{n} } }

t  = \frac{21.1-18}{\frac{5.4}{\sqrt{26} } }

t = 2.9272

<u>Step(iii)</u>:-

The tabulated value t = 1.708 at 25 degrees of freedom

t = 2.9272 > 1.708 at 25 degrees of freedom

Null hypothesis is rejected at  5% significance level of significance

<u>Conclusion</u>:-  

The council decides that it will increase the transportation budget if the amount of waiting time for drivers is not exceeds 18 minutes

8 0
3 years ago
If one jar of coffee costs $y, what will be the cost of four jars of coffee​
Gnoma [55]
4 jars of coffee is going to cost 4 times $4
7 0
3 years ago
Read 2 more answers
A rectangular prism is 4.1 feet long, 4.3 feet wide and 14 feet high. what is the volume of the rectangular prism
Marizza181 [45]

Answer:

246.82 cubic feet.

Step-by-step explanation:

The volume of a rectangular prism is length*width*height. Solving, 4.1*4.3*14=246.82 cubic feet.

8 0
3 years ago
What is the least positive integer divisible by each of the first five composite numbers
Sonbull [250]

Answer:

the answer is 360. the first composite numbers are 4,6,8,9,10

and all the numbers above are divisible by 360

360÷4=90

360÷6=60

360÷8=45

360÷9=40

360÷10=36

6 0
3 years ago
I will upvote and give brainliest answer
zloy xaker [14]

Answer:

x=17

Step-by-step explanation

i just did the exact same question on a test and got it right .

6 0
3 years ago
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