Question
Age (X) Time (Y) 11 1851 12 984 12 841 14 1063 14 883 14 1044 15 985 18 902 19 1040 20 918 20
Age (X) Time (Y)
11 1851
12 984
12 841
14 1063
14 883
14 1044
15 985
18 902
19 1040
20 918
20 976
22 728
26 859
28 960
28 893
30 709
30 786
42 463
43 560
43 791
45 591
47 440
49 258
49 250
50 480
51 919
52 262
53 184
53 231
54 246
55 205
59 163
64 300
11)
Use Data > Data Analysis > Correlation to compute the correlation checking the Labels checkbox.
12)
Use the Excel function =CORREL to compute the correlation. If answers for #1 and 2 do not agree, there is an error.
The strength of the correlation motivates further examination.
13)
a) Insert Scatter (X, Y) plot linked to the data on this sheet with Age on the horizontal (X) axis.
14)
b) Add to your chart: the chart name, vertical axis label, and horizontal axis label.
15)
c) Complete the chart by adding Trendline and checking boxes
Read directly from the chart:
16)
a) Intercept =
17)
b) Slope =
18)
Perform Data > Data Analysis > Regression. Highlight the Y-intercept with yellow. Highlight the X variable in blue. Highlight the standard error in orange
PLEASE SHOW HOW TO COMPUTE ALL EXCEL FUNCTIONS THOROUGHLY AND EXPLANATION OF ANSWERS. THANK YOU!
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