A publisher wants to estimate the mean length of time (in minutes) all adults spend reading newspapers. To determine this estimate, the publisher takes
a random sample of 15 people and obtains the following results. 11, 9, 8, 10,
10, 9, 7, 11, 11, 7, 6, 9, 10, 8, 10. From past studies, the publisher assumes o
is 1.5 minutes and that the population of times is normally distributed. The
90% confidence interval for uis
(Sample mean = 9.1)

its the second choice.

step-by-step explanation:

the elements in the range will be 7 less than the elements in the domain.

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.