Answer:
The size of the sample = 1088.90
Step-by-step explanation:
Given that:
The confidence interval level = 0.95
The margin of error = 0.03
Suppose the proportion of the boys and the girls are p₁ and p₂ respectively.
The Standard error S.E of difference is:
Assume p₁ = p₂ = 0.5
The z-critical value at 95% C.I = 1.96
Margin of error = Z_{critical} × S.E
∴
n ≅ 1088.90
Answer:
For #1 the answer is City C
Step-by-step explanation:
To find the value of anything with a sales tax simply multiply the cost by the tax.
$30 * 2.9%
$30 * .029
$0.87
Now that we have the sales tax, add it to the original cost.
$30 + $0.87 = $30.87
You can do this for each of the sales tax problems. Then compare the answers.
Hello!
The answer would be C.
Hope this helps! ~Pooch ♥
Answer:
the amount of miles in 12km
Step-by-step explanation: