Refer to the technology output given to the right that results from measured hemoglobin levels (g/dl) in 100 randomly selected adult females. the tntrval confidence level of 90% was used. 13.032,13.418) x= 13.225 a. express the confidence interval in the format that uses the "less than" symbol. assume that the original listed data use two decimal places, andsx-1.164 round the confidence interval limits accordingly. b. identify the best point estimate of μ and the margin of error. c. in constructing the confidence interval estimate of μ, why is it not necessary to confirm that the sample data appear to be from a population with a normal distribution?

Step-by-step explanation:

a)

Confidence interval in less than symbol expressed as

Where is sample mean and   is margin of error.

b)

The given t interval is

That is and

Solve these two equation by adding together.

Solve this value of \bar{x} in equation and solve for

Best point estimate of

Best point estimate of margin of error = 0.193

c)

Since sample size = 100 which is sufficiently large (Greater than 30) , it is no need to confirm that

sample data appear to be form a population with normal distribution.

81 seats

step-by-step explanation:

if you multiply 0.65 times 125 then you get 81.5 seats. well since you can't have half of a seat you have to round down and get 81 seats in the no children zones. that leave 44 seats outside of the no children zone.

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