4. A machine produces nails whose lengths are normally distributed with mean u cm and standard deviation o cm. A sample of of 50 nails is selected and the length of each nail, x cm, is measured. The sample data is summarised as follows: Σ-3)-5, Σ-3,-425 Write a 98% confidence interval for µ.
4. A machine produces nails whose lengths are normally distributed with mean u cm and standard deviation o cm. A sample of of 50 nails is selected and the length of each nail, x cm, is measured. The sample data is summarised as follows: Σ-3)-5, Σ-3,-425 Write a 98% confidence interval for µ.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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