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  3. second, the researcher wishes to use graphical des

Second, the researcher wishes to use graphical descriptive methods to present summaries of the data on...

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Statistics

Second, the researcher wishes to use graphical descriptivemethods to present summaries of the data on each of the twovariables: hours worked per week and income earned per year, asstored in HOURSWORKED63 worksheet.

(a) The number of observations (n) is 63 individuals. Theresearcher suggests using 7 class intervals to construct ahistogram for each variable. Explain how the researcher would havedecided on the number of class intervals (K) as 7.

Data of HOURSWORKED63 Excel spraedsheet is below:

Yearly Income ('000's)Hours Per Week
43.818
44.513
44.818
46.025.5
41.411.6
43.318
43.616
46.227
46.827.5
48.230.5
49.324.5
53.832.5
53.925
54.223.5
50.530.5
51.227.5
51.528
52.626
52.825.5
52.926.5
49.533
49.815
50.327.5
54.336
55.127
55.334.5
61.739
62.337
63.431.5
63.737
55.524.5
55.628
55.719
58.238.5
58.337.5
58.418.5
59.232
59.335
59.436
60.539
56.724.5
57.826
63.838
64.244.2
55.834.5
56.234.5
64.340
64.541.5
64.734.5
66.142.3
72.334.5
73.228
74.238
68.531.5
69.736
71.237.5
66.322
66.533.5
66.737
74.643.5
62.020
57.335
55.324

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