Answer:
x = 
Step-by-step explanation:
Isolate the term in x by subtracting a from both sides
12x = m - a ← divide both sides by 12
x = 
15%/100 = 3.51/23.40, 3.51 is your answer because multiple 100*.234 you get 23.40 and then multiply 15*.234 and get 3.51
Answer:
a) point estimate is 30%
b) null and alternative hypothesis would be
: p=27%
: 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
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
: p=27%
: p>27%
<em>c.</em>
z-score of the sample proportion assuming null hypothesis is:
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=
= 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.
Answer:
1. 3x-4.7
2. 4x-11
3. 7x-5
4.4x-10
5. 3x-1
6. 8x-10
Step-by-step explanation:
1. 1x-1.2+2x-3.5
2. 5x-7-x-4
3. 28x+11-21x-16
4. 6x-7-2x-3
5. 5x-2-2x+1
6. 14x+11-6x-21
Answer:
a
Step-by-step explanation:
5 times 8 =40