Kennedy shares two oranges equally with two friends. How much does each friend get?

1 answer:

8 0

Kennedy shares two oranges equally with two friends.

2/2

2 ÷ 2 = 1

Each of the 2 friends will get 1 orange each!

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Find the sum of 5m + 3n + p, -5p + 3n, and 2n - m.

Nastasia [14]

5m + 3n + p
-5p + 3n
2n - m

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ehidna [41]

It can't be simplified because 1/3x and -5/7 aren't like terms and therefore you cannot do addition or subtraction with them.

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Vinil7 [7]

Answer:

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b) null and alternative hypothesis would be

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Step-by-step explanation:

a. 

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%

b.

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%

c.

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.

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kobusy [5.1K]

Answer:

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Step-by-step explanation:

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