Golf Averages: A study of 35 golfers showed that their average score on a particular course was 92. The
standard deviation of the population is 5.
a. Find the best point estimate of the mean.
b. Find the 95% confidence interval of the mean score
for all golfers.
c. Find the 95% confidence interval of the mean score
if a sample of 60 golfers is used instead of a sample
of 35.
d. Which interval is smaller? Explain why.

5

step-by-step explanation:

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

h * s * a

h = history teacher

s = science teacher

a =   art teacher.

i see no data table, but just multiply the number of history teachers, science teachers, and art teachers.

the answer is a. q=6,r=6√2

step-by-step explanation: