A company makes climbing rope, which is cut to lengths of 50m with a standard deviation of
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A company makes climbing rope, which is cut to lengths of 50m with a standard deviation of 1.5m. A sample of 150 pieces of rope is measured and the results are recorded.
Test, at the 5% significance level, whether the lengths of pieces of rope can be modelled as a normal distribution according to the parameters suggested.
Transcribed Image Text:
Length (m) I< 48 Frequency 48 < 49 49
Length (m) I< 48 Frequency 48 < 49 49
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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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