Step-by-step explanation:
Should be Emily, Morgan, Kali, Rosa
24 because it’s 50 %of them
Answer:
Step-by-step explanation:
Hello!
You have two populations of interest and want to compare them. If you define the study variables as:
X₁: average hourly wages of an employee of the Downtown store.
n₁= 25
X[bar]₁= $9
S₁= $2
X₂: average hourly wages of an employee of the North Mall store.
n₂= 20
X[bar]₂= $8
S₂= $1
Both samples taken are independent, assuming that both populations are normal and that their population variances are equal I'll use the Student's-t statistic with a pooled sample variance to calculate the Confidence interval:
95% CI for μ₁ - μ₂
(X[bar]₁-X[bar]₂) ± 


Sa= 1.64

(9-8)±2.017*
[0.007636;1.9923]
I hope it helps!
Answer:
$44,998.85
Step-by-step explanation:
Price of the car = $42,055
Tax = 7%
Total cost = Price of the car + amount of tax
= 42,055 + 7% of 42,055
= 42,055 + 7/100 * 42,055
= 42,055 + 0.07 * 42,055
= 42,055 + 2,943.85
= 44,998.85
Total cost = $44,998.85