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zzz [600]
3 years ago
15

Tony heard that housing expenses should

Mathematics
1 answer:
zzz [600]3 years ago
7 0

Multiply the month;y income by the percentage:

8300 x 0.28 = 2324

He can spend $2,324 a month.

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the graph shows the height of a pendant for a certain amount of time and days happy Monday everybody there may be a proportional
Alex Ar [27]

According to the given graph, the variables does not show a proportional relationship because they points do not form an straight line. Remember that the proportional relationship is represents by a straight line whcih passes through the origin.

<h2>Therefore, the hours and the height of snow do not show a proportional relationship.</h2>
4 0
1 year ago
The mean annual premium for automobile insurance in the United States is $1,499. Being from Pennsylvania, you believe automobile
timama [110]

Answer:

a) Then, t(s) is in the rejection region. We can not support that the mean annual premium in Pennsylvania is lower than the national mean annual premium

b) The point estimate of the difference is  59 $

Step-by-step explanation:

From sample we get:

sample size    n  =  25

annual mean   x  =  1440

standard deviation of the sample   s  =  150

mean for the mean annual premium    μ  = 1499

Hypothesis Test:

Null Hypothesis                      H₀           x  =   μ

Alternative Hypothesis          Hₐ           x  <   μ

Alternative Hypotesis indicates that the test is a one-tail test to the left

Let´s assume  confidence Interval 95 %    then  α  =  5 %   α = 0.05

As  n < 30 and we assume normality we will make a t-student test

degree of freedom    df  =  n  -  1    df  = 24

With df = 24  and  α = 0.05 and from t-student table we get t(c) =  - 1.711

To calculate t(s) we apply:

t(s)  =  (  x  -  μ ) / s/√n

t(s)  =  ( 1440  -  1499 ) * 5 / 150

t(s)  =  - 59/ 30

t(s)  =  - 1.96

Comparing t(s)  and t(c)  

|t(s)| > |t(c)|

Then, t(s) is in the rejection region. We can not support that the mean annual premium in Pennsylvania is lower than the national mean annual premium.

b) The point estimate for the difference is :   x  - μ  =  59 $

3 0
2 years ago
HELP!! ILL MARK BRAINLIEST
Sonja [21]

Answer:

a

Step-by-step explanation:

youre welcome

7 0
3 years ago
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The value of 32cos85° is
erma4kov [3.2K]
2.78 or 3 is the value
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You are studying for your final exam of the semester. up to this point,you recieved 3 exam scores of 76%,99%, and 86%. to reciev
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What you have to do is add up the amount of total grade scores. 76+99+86+x. You get 261+x. you have to get 99% or higher

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