Use the given degree of confidence and sample data to construct a confidence interval for the population mean

muμ.

assume that the population has a normal distribution.

thirty randomly selected students took the calculus final. if the sample mean was 95 and the standard deviation was 6.6, construct a 99% confidence interval for the mean score of all students.

a.

91.68less than
b.

92.03less than
c.

92.95less than
d.

91.69less than

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w

a. 32 degrees

step-by-step explanation:

here we have to use the rule.

m∠e = 1/2 (major arc - minor arc)

m∠e = 1/2 (212 - 148)

m∠e = 1/2 (64)

m∠e = 32 degrees

answer: a. 32 degrees

you