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# Refer to the technology output given to the right that results from measured hemoglobin levels​ (g/dL) in

100

100 randomly selected adult females. The confidence level of 95

95​% was used.

a. Express the confidence interval in the format that uses the​ "less than" symbol. Assume that the original listed data use two decimal​ places, and round the confidence interval limits accordingly.

b. Identify the best point estimate of mu

μ and the margin of error.

c. In constructing the confidence interval estimate of mu

μ​, why is it not necessary to confirm that the sample data appear to be from a population with a normal​ distribution?

TInterval

left parenthesis 13.099 comma 13.687 right parenthesis

(13.099,13.687)

x overbar

xequals

=13.393

13.393

Sxequals

=1.481

1.481

nequals

=100

100

a. Express the confidence interval in the format that uses the​ "less than" symbol. Assume that the original listed data use two decimal​ places, and round the confidence interval limits accordingly.

nothing

​g/dLless than

<▼

less than

<

nothing

​g/dL

​(Round to three decimal places as​ needed.)

(A) 1 3 . 0 9 9 g / d L &lt; &lt; 1 3 . 6 8 7 g / d L (B) mean =... View the full answer

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