A 30 randomly selected women living in a certain area was selected as part of a study on determining the hemoglobin levels of women of that area. The average level was found to be 9.5. In a very large earlier study the st. dev was reported to be 1.3. Assuming the standard deviation is unchanged and that the hemoglobin level is normally distributed, provide an expression for calculating a 95% confidence the interval for the mean hemoglobin level of women in the area under consideration Select one: a. A. 9.5 – 0. 95 < x' <9.5 + 0.95 b. 1.9 – 0. 95
A 30 randomly selected women living in a certain area was selected as part of a study on determining the hemoglobin levels of women of that area. The average level was found to be 9.5. In a very large earlier study the st. dev was reported to be 1.3. Assuming the standard deviation is unchanged and that the hemoglobin level is normally distributed, provide an expression for calculating a 95% confidence the interval for the mean hemoglobin level of women in the area under consideration Select one: a. A. 9.5 – 0. 95 < x' <9.5 + 0.95 b. 1.9 – 0. 95
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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A 30 randomly selected women living in a certain area was selected as part of a study on determining the hemoglobin levels of women of that area. The average level was found to be 9.5. In a very large earlier study the st. dev was reported to be 1.3.
Assuming the standard deviation is unchanged and that the hemoglobin level is
Select one:
a.
A. 9.5 – 0. 95 < x' <9.5 + 0.95
b.
1.9 – 0. 95 <x' <1.9 + 0.95
c. 9.03 < x' < 9.97
d.
A. 1.3 -0.47 < x' <1. 3 + 0.47
e. None of these
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