Question

In a vertical boxplot if the middle horizontal line is above the center of the box, the data is:

a) symmetric b) right skewed c) left skewed d) both right and left skewed

For any given dataset:

a) mean is always greater than the median b) mean is always smaller than the median

c) mean is equal to the median d) can’t tell

If the data is in the form of a frequency table, it is best described using a:

a) histogram b) pie-chart

c) stem and leaf plot d) boxplot

In rating the service provided by a restaurant server, the following responses are possible: excellent, above average, average, below average, and poor. The responses are coded from 1 to 5 with 5 being excellent. The level of measurement this scale represents is:

a) nominal b) ratio

c) interval d) ordinal

Answer #1

In a vertical boxplot, if the middle horizontal line is above the center of the box, the data is left-skewed

Answer:c) left-skewed

For any given dataset:

Here it is not possible to tell with the given information only

Answer:d) can’t tell

If the data is in the form of a frequency table, it is best described using a histogram

Answer:a) histogram

In rating the service provided by a restaurant server, the following responses are possible: excellent, above average, average, below average, and poor. The responses are coded from 1 to 5 with 5 being excellent. The level of measurement this scale represents is ordinal

Answer:d) ordinal

Please give thumbs up if you like the answer.

1 | 0,1,5,5,5,7
2|1,5,6,6,7,8
3| 0,0,2,2,3,4,8,8,9
4| 1,2,2,2,3,8
5|2,2,3,8,9
6|1,5,5
what is the mean - 37.42 36.61 34 38
what is the median - 37.42 36.61 34 38
what is the IQR - 38 42 35 or 24
is the data left or right skewed or relatively symmetric
what method of presenting data is this
stem leaf plot
inverted histogram
horizontal bar chart
histogram

The _________ is calculated by summing all data values and
dividing by how many there are.
The ______is a number that splits the data set in half.ere
are.
The mean is resistant. True or False
A number that is not affected much by extreme values, such as
the median, is ______.
Match the relationship that holds for most data sets between the
shape of the histogram and the values of the mean and median.
____
Skewed to the left
____...

1)
The interquartile range (IQR) is a measure of the ____________
of the middle ____________ percent of the data.
Choose the answers below that correctly fills in the blanks.
The interquartile range (IQR) is a measure of the▼center/spread
of the middle▼50 /25 /75 percent of the data.
2) How can you tell from a boxplot if the distribution is
skewed right?
Choose the correct answer below.
A. The median is to the left of the center of the box, and...

if the median is much closer than the mean, then the outliers in
the sample must be:
a. really low
b. somewhat low
c. close to the mean
d. close to the mode
e. high
critical values of one directional tests are
a. always lower than two directional tests
b. always the same as two directional tests
c. always higher than two directional tests
d. it depends on the test
e. it depends on the obtained value
if the mode...

Mean duration of employment is greater than median duration of
employment. This tells you that
a .the distribution of duration of employment is skewed to the
right
b. the distribution of duration of employment is skewed to the
left
c. the distribution of duration of employment is symmetric
d. none of these answers

Your data is 105, 91, 52, 86, 100, 96, 98, 109, 96, 97.5,
84.0
Is the data of scores qualitative or quantitative?
--------- Qualitative
Quantitative Neither
Is the data of scores discrete or continuous?
--------- Discrete
Continuous Neither
What is the level of measurement for this data?
--------- Nominal Ordinal
Interval Ratio
Which graph is a good choice for this data?
--------- Bar Graph Histogram
What is the rough shape of these data? Use comparison of mean
and median to...

The data represent the age of world leaders of their day of
inauguration. Find the five-number summary, and construct a boxplot
for the data. Comment on the shape of the distribution.
68, 43, 48, 61, 65, 65, 62, 53, 54, 52, 69,57, 44, 67, 67
Choose the correct description of the shape of the
distribution.
A.) The distribution is skewed to the right.
B.) The distribution is roughly symmetric.
C.) The distribution is skewed to the left.
D.) The shape...

1. Which of the following statements is correct in questionnaire
design?
a) The questionnaire and questions should be kept as short as
possible.
b) A mixture of dichotomous, multiple-choice, and open-ended
questions may be used.
c) Leading questions must be avoided.
d) All of the above are correct statements
e) None of these
2. In a histogram, the proportion of the total area, which must
be to the left of the median, is:
a) exactly 0.50
b) less than 0.50...

Consider the data set:
34,49,27,15,50,57,31,39,27,51,62,42,42,36.
a. Compute the sample mean, the sample variance, and the sample
standard deviation of this data set. [Note: Round your answers to
four decimal places.]
b. Construct the five-point summary for this data set (i.e. find
its maximum, minimum, median, and quartiles) and sketch the
boxplot.
c. Are there any possible outliers in this data set?
d. Construct a Stem-and-Leaf plot.

The durations (minutes) of 26 electric power outages in the
community of Sonando Heights over the past five years are shown
below. 34 48 25 66 24 9 58 10 52 4 16 47 40 100 32 18 13 49 22 4 17
25 89 28 14 19 Click here for the Excel Data File (a) Find the
mean, median, and mode. (Round your answers to 2 decimal places.)
Descriptive Statistics Data Mean Median Mode (b) Are the mean and...

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