Question: Ages of 56 attendees of a Harry Potter movie are shown. (a) Form seven age classes (10 to 20, 20 to 30, etc.). Tabulate the frequency of attendees in each class. (b) Calculate expected frequencies for each class. (c) Perform a chi-square GOF test for a uniform distribution, using the 5 percent level of significance.

Harry

10 22 58 11 73 22 57

35 33 33 59 54 55 75

79 24 13 73 52 69 30

71 64 17 50 72 67 50

72 35 26 59 47 65 35

64 34 39 66 37 41 58

51 43 29 74 73 50 62

58 34 50 27 13 67 67

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