Answer:
Step-by-step explanation:
We are given the claim.
Claim: The mean weight of male aerobics instructors in a certain city is more than 182 lbs.
Population mean = 182 lbs
The null hypothesis will state that the sample mean is less than or equal to the population mean 182 lbs.
The alternate hypothesis will state that mean weight of male aerobics instructors in a certain city is more than 182 lbs.
We design the null and the alternate hypothesis
Answer:
$8.229
Step-by-step explanation:
do whats in the paranthese first: 1 + 0.055 = 1.055
when a number is next to another number you multiply: 7.80(1.055) which is 7.80 x 1.055 = 8.229
Answer:
$25.85
Step-by-step explanation:
5.5% of $470 = 5.5% * $470 = 0.055 * $470 = $25.85
Direct variation mean x =ky so y = x/k
(2,14) mean y = kx so 14 = k*2 so 14 = 7*2 so 14 = 14
(4,28) mean y = kx so 28 = k*4 so 28 = 7*4 so 28 = 28
from these result that the 3rd choice is right sure