Concept explainers
Section 1
To graph: The diagram which shows the effect of
Section 1
Explanation of Solution
Calculation: The confidence interval for the population mean
And,
Where,
Here,
And,
Therefore, the required confidence interval is
And,
Therefore, the required confidence interval is
And,
Therefore, the required confidence interval is
And,
Therefore, the required confidence interval is
Graph:
Section 2
To explain: The results.
Section 2
Answer to Problem 13E
Solution: The width of the confidence interval reduces due to hike in the sample size.
Explanation of Solution
The growth of the sample size leads to a fall in the confidence interval because the margin of error is directly proportional to the sample size which means that if the sample size increases the margin of error decreases. This leads to reduction in the width of the confidence interval.
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Chapter 6 Solutions
INTRO.TO PRACTICE STATISTICS-ACCESS
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillBig Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin Harcourt