B, the lowest because would you rather pay 12% daily or monthly
Answer:
a) 5.6 years
b) 0.4478
Step-by-step explanation:
We are given the following in the question:
Mean, μ = 5.6 years
Standard Deviation, σ = 1.9 years
Sample size, n = 18
We are given that the distribution of amounts of time is a bell shaped distribution that is a normal distribution.
a) Mean of each sample.
The best estimator of the sample mean is the population mean itself. Thus, we have:
Thus, the sample mean is 5.6 years.
b) Standard error
Formula:
Putting values, we have.
Thus, the standard error is 0.4478.
Answer:
c
Step-by-step explanation:
the question gives us c already (the pounds of beans roasted) we know the total should be 280.
we are also given a time period, or a set amount of time in which the beans are roasted at. the coffee shop roasts 280 pounds within 8 hours
because we are told that the <u>rate beans are being roasted at is constant,</u> we know that the amount of beans roasted per hour has to be the same.
so now knowing all of this we know we can evenly divide 280 pounds of coffee by our time limit of 8 hours (280/8) to get the pounds of coffee roasted (280/8 = 35) by each time unit, which in this case <u>t = the number of hours.</u>
so
280 pounds of coffee in total = 35 lbs roasted per hour.
c = 35t
Answer:
x=3
Step-by-step explanation:
12/4
3
