1. Which of the following would indicate that a dataset is not bell-shaped? Select one: a. There are no outliers. b. The

[answerhappygod]

1. Which of the following would indicate that a dataset is not
bell-shaped?
Select one:
a. There are no outliers.
b. The range is larger than the interquartile range.
2. To reflect the opinions of a population a survey needs to
Select one:
a. Ask everyone's opinion
b. Ask opinions from the first 100 people you meet
c. Ask the opinions of a representative group
d. Ask opinions from any small group
c. The range is equal to 5 standard deviations.
d. The mean is much smaller than the median.
3. If you have a data set that consists of the following three
values 1, 2, and 3, which of the following statements are true:
Select one:
a. The sample standard deviation equals the sample
average.
b. The sample standard deviation equals the sample
variance.
c. None of the above
d. The range of the data is 3.
4. Data Set 2: mean = 30, median = 25, standard deviation = 4.
For data set 2 the coefficient of variation is
Select one:
a. -3.75
b. +3.75
c. +13.3
d. +7.5
5.The level of measurement achieved by recording whether the
person reading this book likes or dislikes the layout of a scale 1
to 5 is
Select one:
a. nominal
b. ratio
c. interval
d. ordinal
6.
Which one of the following variables is not categorical?
Select one:
a. Age of a person.
b. Choice on a test item: true or false.
c. Marital status of a person (single, married, divorced,
other)
d. Gender of a person: male or female.
7.
A smaller sample size can be used
Select one:
a. none of these
b. if more detailed analysis is to be undertaken
c. if greater accuracy if required
d. if the variability in the population is smaller
8.
Scoring models could be used for
Select one:
a. breakeven analysis
b. the evaluation of a saving scheme
c. a cash flow forecast
d. clarifying the choices between options that involve a
number of factors
9.
We need to be cautious when using data from the internet
because
Select one:
a. all of the above
b. sources may not be known
c. incompleteness
d. possible bias
10.
The question "Do you eat this food because it is good for you
and you like it?" is
Select one:
a. A leading question
b. A hypothetical question
c. Two questions as one
d. A question which contains jargon