Concept explainers
a.
Find the value of
a.
Answer to Problem 66E
The value of
Explanation of Solution
Calculation:
It is given that z is a random variable that follows standard
The area under the z curve is obtained as given below:
Use the Appendix- TABLE 2, Standard Normal Probabilities (Cumulative z Curve Areas) to obtain the required area.
- Locate the value 0.1 in row.
- Locate the value 0.00 in column.
- The intersecting value of the row and column is 0.5398.
The required value is obtained as given below:
Thus, the value of
b.
Find the value of
b.
Answer to Problem 66E
The value of
Explanation of Solution
Calculation:
The area under the z curve is obtained as given below:
Use the Appendix- TABLE 2, Standard Normal Probabilities (Cumulative z Curve Areas) to obtain the required area.
- Locate the value –0.1 in row.
- Locate the value 0.00 in column.
- The intersecting value of the row and column is 0.4602.
The required value is obtained as given below:
Thus, the value of
c.
Find the value of
c.
Answer to Problem 66E
The value of
Explanation of Solution
Calculation:
The area under the z curve is obtained as given below:
Use the Appendix- TABLE 2, Standard Normal Probabilities (Cumulative z Curve Areas) to obtain the required area.
- Locate the value 0.8 in row.
- Locate the value 0.05 in column.
- The intersecting value of the row and column is 0.8023.
- Locate the value 0.4 in row.
- Locate the value 0.00 in column.
- The intersecting value of the row and column is 0.6554.
The required value is obtained as given below:
Thus, the value of
d.
Find the value of
d.
Answer to Problem 66E
The value of
Explanation of Solution
Calculation:
The area under the z curve is obtained as given below:
Use the Appendix- TABLE 2, Standard Normal Probabilities (Cumulative z Curve Areas) to obtain the required area.
- Locate the value –0.8 in row.
- Locate the value 0.05 in column.
- The intersecting value of the row and column is 0.1977.
- Locate the value –0.4 in row.
- Locate the value 0.00 in column.
- The intersecting value of the row and column is 0.3446.
The required value is obtained as given below:
Thus, the value of
e.
Find the value of
e.
Answer to Problem 66E
The value of
Explanation of Solution
Calculation:
The area under the z curve is obtained as given below:
Use the Appendix- TABLE 2, Standard Normal Probabilities (Cumulative z Curve Areas) to obtain the required area.
- Locate the value 0.8 in row.
- Locate the value 0.05 in column.
- The intersecting value of the row and column is 0.8023.
- Locate the value –0.4 in row.
- Locate the value 0.00 in column.
- The intersecting value of the row and column is 0.3446.
The required value is obtained as given below:
Thus, the value of
f.
Find the value of
f.
Answer to Problem 66E
The value of
Explanation of Solution
Calculation:
The area under the z curve is obtained as given below:
Use the Appendix- TABLE 2, Standard Normal Probabilities (Cumulative z Curve Areas) to obtain the required area.
- Locate the value –1.2 in row.
- Locate the value 0.05 in column.
- The intersecting value of the row and column is 0.1056.
The required value is obtained as given below:
Thus, the value of
g.
Find the value of
g.
Answer to Problem 66E
The value of
Explanation of Solution
Calculation:
The area under the z curve is obtained as given below:
Use the Appendix- TABLE 2, Standard Normal Probabilities (Cumulative z Curve Areas) to obtain the required area.
- Locate the value –1.5 in row.
- Locate the value 0.00 in column.
- The intersecting value of the row and column is 0.0668.
- Locate the value 2.5 in row.
- Locate the value 0.00 in column.
- The intersecting value of the row and column is 0.9938.
The required value is obtained as given below:
Thus, the value of
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Chapter 7 Solutions
INTRO.TO STATS.+DATA ANALYS. W/WEBASSI
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