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erik [133]
3 years ago
14

Please help will mark Brainly

Mathematics
1 answer:
Brilliant_brown [7]3 years ago
7 0

Answer:


Step-by-step explanation:

This is not a linear relationship, it doesn't have a set increase or uniform slope and it seems more like an exponential or quadratic curve to me when I graph it. As you can see you cant draw a straight line through the data points so it cannot be a linear relationship.

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A recent survey of 50 executives who were laid off during a recent recession revealed it took a mean of 26 weeks for them to fin
drek231 [11]

Answer:

The pvalue of 0.0113 < 0.05 means that there is sufficient evidence to conclude that the mean time to find another position is less than 28 weeks at the 5% level of significance

Step-by-step explanation:

The null hypothesis is:

H_{0} = 28

The alternate hypotesis is:

H_{1} < 28

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

A recent survey of 50 executives who were laid off during a recent recession revealed it took a mean of 26 weeks for them to find another position.

This means that n = 50, X = 26

Assume the population standard deviation is 6.2 weeks.

This means that \sigma = 6.2

Does the data provide sufficient evidence to conclude that the mean time to find another position is less than 28 weeks at the 5% level of significance

We have to find the pvalue of Z, looking at the z-table, when \mu = 28. It if is lower than 0.05, it provides evidence.

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{26 - 28}{\frac{6.2}{\sqrt{50}}}

z = -2.28

z = -2.28 has a pvalue of 0.0113 < 0.05.

The pvalue of 0.0113 < 0.05 means that there is sufficient evidence to conclude that the mean time to find another position is less than 28 weeks at the 5% level of significance

5 0
2 years ago
(5x – 3)<br> a<br> 1170<br> -b<br> please help
ArbitrLikvidat [17]

Answer: x= 114/5

Step-by-step explanation:

Opposite angles in between parallel lines are equal. Just solve for x. (5x-3)=117  

6 0
2 years ago
What is 175 times 7 equal
Romashka [77]

Answer:

1225

Step-by-step explanation:

plug it into a calculator

8 0
3 years ago
Read 2 more answers
What is 83/9 as a mixed number
vodka [1.7K]
9) 83 (9
   -81
   ___
      2

Mixed fraction formula: Quotient Reminder/Dividend
                                      Q = 9  R=2  D=9

So, 83/9 in mixed fraction is 9 2/9

HOPE THIS HELPS!!!!
3 0
3 years ago
Mary can paint a house by herself in 12 hours. john can paint a house by himself in 16 hours. how long would it take them to pai
QveST [7]
1/12+1/16=1/n
4/48+3/48=1/n
7/48=1/n
48=7n
n=48/7 hours to paint the house if they worked together
☺☺☺☺
5 0
3 years ago
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