Question

Given a 99% confidence level, a limit of acceptable error of +/- 2.0 mph, and an expected standard deviation of 4.5 mph, determine the minimum sample size. Round to the nearest whole number. Constant Corresponding to Level of Confidence for a Two-Tail Analysis Confidence Level (%) Constant Z 68.3 1.00 86.6 1.50 90.0 1.64 95.0 1.96 95.5 2.00 98.8 2.50 99.0 2.58 99.7 3.00

          Given a 99% confidence level, a limit of acceptable error of +/- 2.0 mph, and an expected standard deviation of 4.5 mph, determine the minimum sample size.
Round to the nearest whole number.
Constant Corresponding to Level of Confidence for a
Two-Tail Analysis
Confidence Level (%)
Constant Z
68.3
1.00
86.6
1.50
90.0
1.64
95.0
1.96
95.5
2.00
98.8
2.50
99.0
2.58
99.7
3.00

Given a 99% confidence level, a limit of acceptable error of +/- 2.0 mph, and an expected standard deviation of 4.5 mph, determine the minimum sample size.
Round to the nearest whole number.
Constant Corresponding to Level of Confidence for a
Two-Tail Analysis
Confidence Level (%)
Constant Z
68.3
1.00
86.6
1.50
90.0
1.64
95.0
1.96
95.5
2.00
98.8
2.50
99.0
2.58
99.7
3.00

Added by Olga C.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

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Solved by Expert Sri K

10/07/2022

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Given a 99% confidence level, a limit of acceptable error of +/- 2.0 mph, and an expected standard deviation of 4.5 mph, determine the minimum sample size. Round to the nearest whole number. Constant Corresponding to Level of Confidence for a Two-Tail Analysis Confidence Level (%) Constant Z 68.3 1.00 86.6 1.50 90.0 1.64 95.0 1.96 95.5 2.00 98.8 2.50 99.0 2.58 99.7 3.00