1.1 the drying time, in hours, of a certain brand of latex paint. The following measurements were recorded for 2.9 3.7 3.6 2.8 3.4 2.5 4.8 2.8 4.4 3.3 4.0 5.6 5.2 3.0 4.8 Assume that the measurements are a simple random sample. (a) What is the sample size for the above sample? (b) Calculate the sample mean for these data. (c) Calculate the sample median.

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1.1 The following measurements were recorded for
the drying time, in hours, of a certain brand of latex
paint.
3.4
2.8
2.5
4.8
2.9
3.6
3.3
5.6
5.2
3.7
2.8
4.4
4.0
3.0
4.8
Assume that the measurements are a simple random
sample.
(a) What is the sample size for the above sample?
(b) Calculate the sample mean for these data.
(c) Calculate the sample median.
(d) Plot the data by way of a dot plot.
(e) Compute the 20%
trimmed mean for the above
data set.
(f) Is the sample mean for these data more or less de-
scriptive as a center of location than the trimmed
mean?
Transcribed Image Text:1.1 The following measurements were recorded for the drying time, in hours, of a certain brand of latex paint. 3.4 2.8 2.5 4.8 2.9 3.6 3.3 5.6 5.2 3.7 2.8 4.4 4.0 3.0 4.8 Assume that the measurements are a simple random sample. (a) What is the sample size for the above sample? (b) Calculate the sample mean for these data. (c) Calculate the sample median. (d) Plot the data by way of a dot plot. (e) Compute the 20% trimmed mean for the above data set. (f) Is the sample mean for these data more or less de- scriptive as a center of location than the trimmed mean?
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