Parents complain that children read too few storybooks and watch too much television nowadays. A survey of 1,000 children reveals the following information on average time spent watching TV and average time spent reading storybooks.     If the null hypothesis of no connection between time spent watching TV and time spent reading story books is true, how many children watching less than 2 hours of TV and reading no more than 2 hours of story books on average can we expect?        227.23     35.69     262.91     969.75

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter7: Applying Fractions
Section7.2: Proportions
Problem 9P
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  1.  Parents complain that children read too few storybooks and watch too much television nowadays. A survey of 1,000 children reveals the following information on average time spent watching TV and average time spent reading storybooks.

     

     

    If the null hypothesis of no connection between time spent watching TV and time spent reading story books is true, how many children watching less than 2 hours of TV and reading no more than 2 hours of story books on average can we expect? 

     

       

    227.23

       

    35.69

       

    262.91

       

    969.75

Average time spent reading story books
Average time
spent watching
TV
Less than 1 hour
Between land 2
More than 2 hours
hours
Less than 2 hours
90
85
130
More than 2 hours
655
32
8
Transcribed Image Text:Average time spent reading story books Average time spent watching TV Less than 1 hour Between land 2 More than 2 hours hours Less than 2 hours 90 85 130 More than 2 hours 655 32 8
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