Description
I have a StatCrunch practice to do. I don't know how to use StatCrunch and need someone to help me how to do these questions.
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Explanation & Answer
Hi Aryo92, here's the final answer! Sorry for the wait, before each answer is an in depth explanation! IT was a pleasure working with you!😁
StatCrunch
Question 1:
Explanation: You create a relative frequency distribution by dividing each frequency with the
frequency total. Remember this table is for the adults. We can represent in a table like so:
a)
Number of texts
Frequency
Relative frequency
None
173
173/1936 = 0.08
0-10
978
978/1936 = 0.5
11-20
249
249/1936 = 0.13
21-50
249
249/1938 = 0.13
51-100
134
134/1936 = 0.07
101+
153
153/1936 = 0.08
Total
1936
1
Please not that you can represent this data in the form of a histogram if asked.
Explanation: Let’s construct a second table for teens this time
b)
Number of texts
Frequency
Relative frequency
None
13
13/627 = 0.02
1-10
138
138/627 = 0.22
11-20
69
69/627 = 0.11
21-50
113
113/627 = 0.18
51-100
113
113/627 = 0.18
101+
181
181/627 = 0.3
Total
627
1
Explanation: Now we need to represent the data in a side by side bar graph. This means that
we will have two bars comparing teens and adults touching, but when they are in the same
range. Remember to give the graph a heading and to label the x and y-axis:
c)
Explanation: When comparing the texting habits you should take note of a few things. The
extremes, so None and 101+ and the majority in the middle.
d) There seem to be less teens that don’t text at all compared to adults, and there also are more
teens that text more than 101 messages compared to adults, but there are more adults that text
between 1-100 messages.
Question 2
Explanation: You should be fairly familiar with drawing tables now, This table will look as
follows:
a)
Response
Frequency
Relative Frequency
Never
125
125/4776 = 0.03
Rarely
324
324/4776 = 0.07
Sometimes
552
552/4776 = 0.11
Most of the time
1257
1257/4776 = 0.26
Always
2518
2518/4776 =0.52
Total
4776
1
Explanation: In order to get a relative frequency into a percentage you simply multiply it by 100.
b) 0.52 * 100 = 52% of respondents answered
Explanation: Here you do the same thing with both Never and Rarely relative frequencies.
c) Never: 0.03 * 100 = 3%
Rarely: 0.07 * 100 = 7%
Explanation: Here we use the values from the frequency column to draw up a bar graph.
Remember to label the graph with heading and label the x and y axis.
d)
Explanation: Here we draw the same graph, but using the values from the relative frequencies
column. Again don’t forget to label the graph as well as the x and y axis.
e)
Explanation:In order to construct a pie chart...