Microsoft Office Tutorials and References
In Depth Information
Fig. 3.12
Worksheet data for Chap. 3: practice problem #3
(a) Use Excel to the right of the table to ﬁnd the sample size, mean, standard
deviation, and standard error of the mean for these data. Label your
answers, and use two decimal places for the mean, standard deviation, and
standard error of the mean.
(b) Enter the null hypothesis and the research hypothesis for these data onto
your spreadsheet.
(c) Use Excel’s TINV function to ﬁnd the 95 % conﬁdence interval about the
mean for these data. Label your answers on your spreadsheet. Use two
decimal places for the lower limit and the upper limit of the conﬁdence interval.
(d) Enter the result of the test on your spreadsheet.
(e) Enter the conclusion of the test in plain English on your spreadsheet.
(f) Print your ﬁnal spreadsheet so that it ﬁts onto one page (if you need help
remembering how to do this, see the objectives at the end of Sect. 2.4 ) .
(g) Draw a picture of the conﬁdence interval, including the reference value,
onto your spreadsheet.
(h) Save the ﬁnal spreadsheet as: acorn10.
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