For part (a), you're looking to find
such that
You have
and
Setting these equal, you get
For part (b), you have
and you want to find
such that
You have
and
Setting them equal gives
Answer:
The turkey has to be put in the oven at 7:10 AM.
Step-by-step explanation:
We have:
<u>Turkey stuffed with 16 pounds </u>
Since the time of cooking is 15 minutes per pound with an addition of 5 minutes per pound when the turkey is stuffed, hence we have:
Therefore, the total time of cooking is 320 minutes or 5 hours plus 20 minutes.
If they plan to eat at 1:00 PM with 30 minutes for cooling and carving, then:
Hence, the turkey has to be put in the oven at 7:10 AM.
I hope it helps you!
Answer:
Yes, to construct a confidence interval, it is necessary to check whether the population is approximately normal or not.
Step-by-step explanation:
The information about distribution of population is important in order to find out the sampling distribution. When we want to construct confidence interval, the accuracy of results depend on three conditions.
1. The data needs to be randomly selected.
2. The sampling distribution needs to be normally distributed
3. The observations must be independent.
So one of the conditions is to ensure that the population is normally distributed.
We know from the central limit theorem, the sampling distribution is approximately normal as long as the expected number of successes and failures are equal or greater than 10
np ≥ 10
n(1 - p) ≥ 10
When the population follows normal distribution then a small number of samples will be adequate, on the other hand, if the population is skewed then we need a greater sample size to ensure normal sampling distribution.
Therefore, it is necessary to check whether the population is approximately normal before constructing a confidence interval.
Answer:
g(x) = 0.8x gal/dollar
Step-by-step explanation:
This is a direct relation, each gallon costs 1.25, 20 gal. costs 25.00, etc.
so
f(x) = 1.25x where x = number of gal. f(x) is the cost
The inverse relation is the reciprocal,
for each $1.00, we can buy 1/1.25 = 0.8 gal.
or
g(x) = 0.8x where x = amount, g(x) is number of gallons