Wedding Costs by Experience StatCrunch did a survey asking respondents how much they thought should be spent on a wedding and whether or not they had already had a wedding. The following table shows Minitab descriptive statistics for wedding costs. Compare the means and the standard deviations for those who had a wedding and those who had not. Which group thought more should be spent on a wedding? Which group had more variation in its responses? Descriptive Statistics: Amount Statistics
Wedding Costs by Experience StatCrunch did a survey asking respondents how much they thought should be spent on a wedding and whether or not they had already had a wedding. The following table shows Minitab descriptive statistics for wedding costs. Compare the means and the standard deviations for those who had a wedding and those who had not. Which group thought more should be spent on a wedding? Which group had more variation in its responses? Descriptive Statistics: Amount Statistics
Wedding Costs by Experience StatCrunch did a survey asking respondents how much they thought should be spent on a wedding and whether or not they had already had a wedding. The following table shows Minitab descriptive statistics for wedding costs. Compare the means and the standard deviations for those who had a wedding and those who had not. Which group thought more should be spent on a wedding? Which group had more variation in its responses?
Descriptive Statistics: Amount
Statistics
Statistics that help describe, summarize, and present information extracted from data. Descriptive statistics include concepts related to measures of central tendency, measures of variability, measures of frequency, shape of distribution, and some data visualization techniques/tools such as pivot tables, charts, and graphs.
65% of all violent felons in the prison system are repeat offenders. If 43 violent felons are randomly selected, find the probability that
a. Exactly 28 of them are repeat offenders.
b. At most 28 of them are repeat offenders. c. At least 28 of them are repeat offenders. d. Between 22 and 26 (including 22 and 26) of them are repeat offenders.
08:34
◄ Classroom
07:59
Probs. 5-32/33
D
ا.
89
5-34. Determine the horizontal and vertical components
of reaction at the pin A and the normal force at the smooth
peg B on the member.
A
0,4 m
0.4 m
Prob. 5-34
F=600 N
fr
th
ar
0.
163586
5-37. The wooden plank resting between the buildings
deflects slightly when it supports the 50-kg boy. This
deflection causes a triangular distribution of load at its ends.
having maximum intensities of w, and wg. Determine w
and wg. each measured in N/m. when the boy is standing
3 m from one end as shown. Neglect the mass of the plank.
0.45 m
3 m
Examine the Variables: Carefully review and note the names of all variables in the dataset. Examples of these variables include:
Mileage (mpg)
Number of Cylinders (cyl)
Displacement (disp)
Horsepower (hp)
Research: Google to understand these variables.
Statistical Analysis: Select mpg variable, and perform the following statistical tests. Once you are done with these tests using mpg variable, repeat the same with hp
Mean
Median
First Quartile (Q1)
Second Quartile (Q2)
Third Quartile (Q3)
Fourth Quartile (Q4)
10th Percentile
70th Percentile
Skewness
Kurtosis
Document Your Results:
In RStudio: Before running each statistical test, provide a heading in the format shown at the bottom. “# Mean of mileage – Your name’s command”
In Microsoft Word: Once you've completed all tests, take a screenshot of your results in RStudio and paste it into a Microsoft Word document. Make sure that snapshots are very clear. You will need multiple snapshots. Also transfer these results to the…
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