The times spent, in minutes, by 30 girls and by 40 boys on an assignment are detailed

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The times spent, in minutes, by 30 girls and by 40 boys on an assignment are detailed in the following table.

a. For the boys and for the girls, calculate estimates of the mean and standard deviation.

b. It is required to make a comparison between the times spent by the two groups.

i. What do the means tell us about the times spent?

ii. Use the standard deviations to compare the times spent by the two groups.

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Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook

ISBN: 9781108407304

1st Edition

Authors: Dean Chalmers, Julian Gilbey

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Question Posted: Sep 13, 2021 01:55 AM

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The times spent, in minutes, by 30 girls and by 40 boys on an assignment are detailed

Question:

Time spent (min 20- 30- 40- 60-80 No. girls (f 14 7 3 No, boy ambric 15 11 7 7

Step by Step Answer:

a To calculate the estimates of mean and standard deviation for the girls and boys we first need to ...View the full answer

Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook

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