Mathematics, 28.05.2021 20:40 JBBunny

10. In preparation for constructing confidence interval for a population mean, it's important to plot the distribution of sample data. Below are stem plots describing samples from three different
populations. For which of the three samples would it be safe to construct a t-interval?
Sample X
Sample Y
Sample z
n = 20
n=19
n=11
0
1
2
3
4 1
5 356 779
60123 5568
7|123
85
2.
1 5
2 1
3
4 1
5 688
6 15 567
70255788
32
4 1
5356
6012
7| 12
85
(a) Sample X only
(b) Sample Y only
(c) Sample Z only
(d) Sample X and Z
(c) None of the plots.

Answers: 3

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10. In preparation for constructing confidence interval for a population mean, it's important to plo...