Answer:
1,539
Step-by-step explanation:
Using Simple Random Sampling in an infinite population (this is such a large population that we do not know the exact number) we have that the sample size should be the nearest integer to
where
<em>Z= the z-score corresponding to the confidence level, in this case 90%, so Z=1.645 (this means that the area under the Normal N(0,1) between [-1.645,1.645] is 90%=0.9)
</em>
<em>p= the proportion of young urban people (ages 21 to 35 years) who go to at least 3 concerts a year= 35% = 0.35
</em>
<em>q = 1-p = 0.65
</em>
<em>e = the error proportion = 2% = 0.02
</em>
Making the calculations
So, the sample size should be 1,539 young urban people (ages 21 to 35 years)
Answer:
Step-by-step explanation:
Total profit = $ 1,800,000
4x + 3x + 2x = $ 1,800,000
9x =$ 1,800,000
x = 1,800,000/9
x = $ 200,000
President's share= 4x = 4* 200,000 =$800,000
Vice president's share = 3x = 3 * 200,000 = $ 600,000
Financial officer's share = 2x = 2 * 200,000 = $ 400,000
4<√19<5
8<√77<9
so the quality numbers are 5,6,7,and 8
5+6+7+8=26
so the answer is 26