Answer:
Step-by-step explanation:
10 divided by 12= 0.83
0.83 times 5= 4.16 or 26/625
Answer:
The required amount of mice is 11.82 gram.
Step-by-step explanation:
Given : Assuming that it is known from previous studies that σ = 4.5 grams. If we wish to be 95% confident that the mean weight of the sample will be within 3 grams of the population mean for all mice subjected to this protein diet.
To find : How many mice should be included in our sample?
Solution :
The formula used in the situation is

Where, z value at 95% confidence interval is z=1.96
gram is the mean of the population
gram is the standard deviation of the sample
Substituting the value, to find x sample mean





Therefore, The required amount of mice is 11.82 gram.
Answer:
The answer is B.3 because
3*11=33+22=$55
3*9=27+28=$55
28 divided by 8 is equal to 3.5, so one hotdog will cost $3.50