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ivolga24 [154]
2 years ago
13

What is the slope of the graph shown below?

Mathematics
1 answer:
-BARSIC- [3]2 years ago
3 0
-2 this is because common sense if it’s going down it’s going to be a negative plus it goes down 2 y every 1 x
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In recent years more people have been working past the age of 65. In 2005, 27% of people aged 65–69 worked. A recent report from
Vinil7 [7]

Answer:

a) point estimate is 30%

b) null and alternative hypothesis would be

H_{0}: p=27%

H_{a}: p>27%

c) We reject the null hypothesis, percentage working people aged 65-69 had increased

Step-by-step explanation:

<em>a. </em>

Point estimate would be the proportion of the working people aged 65–69 to the sample size and equals \frac{180}{600}=0.3 ie 30%

<em>b.</em>

Let p be the proportion of people aged 65–69 who is working. OECD claims that percentage working had increased. Then null and alternative hypothesis would be

H_{0}: p=27%

H_{a}: p>27%

<em>c.</em>

z-score of the sample proportion assuming null hypothesis is:

\frac{p(s)-p}{\sqrt{\frac{p*(1-p)}{N} } } where

  • p(s) is the sample proportion of working people aged 65–69 (0.3)
  • p is the proportion assumed under null hypothesis. (0.27)
  • N is the sample size (600)

then z=\frac{0.3-0.27}{\sqrt{\frac{0.27*0.73}{600} } } = 1.655

Since one tailed p value of 1.655 = 0.048 < 0.05, sample proportion is significantly different than the proportion assumed in null hypothesis. Therefore we reject the null hypothesis.

3 0
3 years ago
Read 2 more answers
What is the value of x? Round to the nearest tenth. ​
ziro4ka [17]
It’s 60 I think hope this helps
3 0
3 years ago
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Write the sum of the numbers as the product of their GCF and another sum.<br><br> 48 + 14
Talja [164]
It looks like the first thing you have to find is their GCF, ya reckon ?

The factors of  56  are  1, 2, 4, 7, 8, 13, 28, and 56 .

The factors of  64  are  1, 2, 4, 8, 16, 32, and 64 .

The common factors are  1, 2, 4, and 8 .

The greatest one is  8 .

56/8 = 7
64/8 = 8

56  plus  64 = (8 times 7)  plus  (8 times 8)

<span>56  plus  64 =  </span><u>8 times (7 plus 8)</u><span>    <== that's the answer</span>

Check it out:

<span>56  plus  64 = </span><u>120</u>

<span>8 times (7 plus 8) = 8 times 15 = </span><u>120</u><span>  </span>
5 0
4 years ago
А) 6x = 7y<br> Can someone help
Rom4ik [11]

Answer:

36  x 2 - 49 y 2

Step-by-step explanation:

6  x (6x) +6 x ( - 7 y ) + 7 y (6x) +7 y ( - 7 y)

5 0
3 years ago
George invited 65 students in his school to volunteer at a charity race. 39 of the students signed up to volunteer. What percent
mr Goodwill [35]

Answer:

60%

Step-by-step explanation:

Divide the amount of people who showed up by the total invited...

39/65 = 0.6

To convert a decimal to a percent, multiply the decimal by 100%...

0.6(100%) = 60%

8 0
3 years ago
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