Question

NARRBEGIN: SA_76_78
The data shown below contains family incomes (in thousands of dollars) for a set of 50 families; sampled in 1980 and 1990. Assume that these families are good representatives of the entire United States.
198019901980199019801990
58 54 33 29 73 69
6 2 14 10 26 22
59 55 48 44 64 70
71 57 20 16 59 55
30 26 24 20 11 7
38 34 82 78 70 66
36 32 95 97 31 27
33 29 12 8 92 88
72 68 93 89115111
100 96100102 62 58
1 0 51 47 23 19
27 23 22 18 34 30
22 47 50 75 36 61
141166124149125150
72 97113138121146
165190118143 88113
79104 96121
NARREND
Find the mean, median, standard deviation, first and third quartiles, and the 95th percentile for family incomes in both years.

Answer

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