In a large school, a sample of 50 boys and 60 girls complete a 100m race. The
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In a large school, a sample of 50 boys and 60 girls complete a 100m race. The estimators of the data are given.
Find the 95% confidence interval for the difference in times between the boys and girls to complete the 100 m race.
Transcribed Image Text:
Sample size Mean time taken (s) Variance (s) Boys 50 13.7 2.56 Girls 60 14.9 3.43
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Related Book For
Cambridge International AS & A Level Further Mathematics Coursebook
ISBN: 9781108403375
1st Edition
Authors: Lee Mckelvey, Martin Crozier
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