Parents complain that children read too few storybooks and watch too much televi

Question

Parents complain that children read too few storybooks and watch too much television nowadays. time spent children reveals the folowing information on average time spent watching TV and average reading OBSERVED VALUES Average time spent reading story books Average time spent watching Less than 1 TBetween Tand2T More than 2 90 30 305 Less than 2 hours 655 32 8 005 More than 2 hours Total 745 117 138 1000 A Chi-square Test of Independence Analysis is to be performed. Thus, the following hypotheses have been formulated. Ho: The variables "Average time spent reading story books' and Average time spent watching TV are independent (ie., there is no relationship between them) H, The variables "Average time spent reading story books and Average time spent watchingTV are dependent (i e., there is a relationship between them) You have been asked to perform this Chi-square Test of Independence Analysis. The following blank table has been setup for you to facilitate the calculation of the Expected Values. The blank cells have been labeled and are referenced in the subsequent questions for this Scenario. Average time spent reading story books EXPECTED VALUES Average time spent watching Less than 1 Between land 2 T More than 2 Total hour hours 305 Cell B Cell C Cell A Less than 2 hours 695 Cell F Cell E Cell D More than 2 hours 1000 138 745 Total Assume a 0 05 level of significance (a 0.05).

Explanation / Answer

Answer:

31-b

32-a

33-c

34-d

35-d

36-c

Chi-Square Test Observed Frequencies Column variable Row variable C1 C2 C3 Total R1 90 85 130 305 R2 655 32 8 695 Total 745 117 138 1000 Expected Frequencies Column variable Row variable C1 C2 C3 Total R1 227.23 35.69 42.09 305 R2 517.78 81.32 95.91 695 Total 745 117 138 1000

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