Answer:
a: sample mean: 130.2 pounds
This is not the population mean
Step-by-step explanation:
To find the mean weight of the sample, add up all the values and divide by the total number of values entered. In this case, 10, so we have...
mean: (136 + 99 + 118 + 129 + 125 + 170 + 130 + 128 + 120 + 147)/10 =
1302/10 = 130.2
This is not the population mean. It is the mean of the sample. We would have to know more information to make a conjecture about the population mean.
is continuous on [0, 1] and differentiable on (0, 1), so yes, the MVT is satisfied.
By the MVT, there is some
such that

The derivative is

so we get


Answer: 26.75
I give credit to the other guy
Sara is wrong because making 3 cakes instead of 1 would require 2 1/4 cups of sugar. The original 3/4 cups of sugar would be multiplied by 3 (3/1 x 3/4) which would be 9/4, or 2 1/4, cups.
I believe the answer would be 10.2