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2) The average hemoglobin reading for a sample of 20 teachers was 16 grams per 100 milliliters, with a sample standard deviation of 2 grams. Find the 99% confidence in- tervals of the true mean.

2) The average hemoglobin reading for a sample of 20 teachers was 16 grams per 100 milliliters, with a sample standard deviation of 2 grams. Find the 99% confidence in- tervals of the true mean.

Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.3: Least Squares Approximation
Problem 31EQ
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can you do question 1 and 2 ? Thank you 

1) For all the cases below: explain if you are justified in estimating the population pa- rameter, and if so, find the appropriate critical value. If not, explain why you are not justified in estimating the population parameter. a) CL-98%, n=10, o is unknown, population appears to be normally distributed b) CL-99%, n=20, p=0.2 c) CL-99%, n=25, o = 4.2, population appears to be very skewed d) CL=90%, n=50, s = 2.5, population appears to be very skewed e) CL-80%, n=90, x=9 2) The average hemoglobin reading for a sample of 20 teachers was 16 grams per 100 milliliters, with a sample standard deviation of 2 grams. Find the 99% confidence in- tervals of the true mean.
Transcribed Image Text:1) For all the cases below: explain if you are justified in estimating the population pa- rameter, and if so, find the appropriate critical value. If not, explain why you are not justified in estimating the population parameter. a) CL-98%, n=10, o is unknown, population appears to be normally distributed b) CL-99%, n=20, p=0.2 c) CL-99%, n=25, o = 4.2, population appears to be very skewed d) CL=90%, n=50, s = 2.5, population appears to be very skewed e) CL-80%, n=90, x=9 2) The average hemoglobin reading for a sample of 20 teachers was 16 grams per 100 milliliters, with a sample standard deviation of 2 grams. Find the 99% confidence in- tervals of the true mean.
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