You wish to estimate the average weight of a mouse. You obtain 10 mice, sampled uniformly at random and with replacement from the mouse population. Their weights are 21; 23; 27; 19; 17; 18; 20; 15; 17; 22 grams respectively. (a) What is the best estimate for the average weight of a mouse, from this data? (b) What is the standard error of this estimate? (c) How many mice would you need to reduce the standard error to 0.1?

a) 19.9

b) 1.1099

c) 1232

Step-by-step explanation:

We are given the following in the question:

21, 23, 27, 19, 17, 18, 20, 15, 17, 22

a) estimate for the average weight

b) standard error of this estimate

Sum of squares of differences = 110.9

Standard Error =

c) Sample size for a standard error of 0.1

Thus, the sample size must be approximately 1232 for a standard error of 0.1.

the answer to your question a or b but i am pretty sure it is b. i hope this : )

step-by-step explanation:

4

step-by-step explanation:

6 (donuts) divided by 3 is 2.

so 2/3 means 2 times 2, which is 4/6.

you get two and your friend gets four.