Question

To begin to better understand personal experiences of headache
pain a drug manufacturer has asked 18 adults to write the most
recent headache on a scale of 0 to 100 with zero corresponding to
no pain and 100 corresponding to the greatest pain that a person
has ever felt here are the 18 ratings first rating 14 next 16 next
16 next 16 next 18 next 23 next to 25 next 27 next 33 next 34 next
35 next 44 next 48 next 51 next 68 next 76 next 82 next 89

Questions:

A

which measure of central tendency do not exist for the data set
choose all that apply answers that could be mean median mode or
none of these measures?

B

Suppose that the measure 14 the smallest measurement in the data
sets were replaced by five which measures of central tendency would
be affected by the change choose all that apply possible answers
mean median mode or none of these measures?

C

Suppose that starting with original data set the smallest
measurements were removed which of the following of central
tendency would be changed from those of the original data set
choose all that apply possible answers mean median mode or none of
these measures?

D

The relative values of the mean and medium for the original sets
are typical of the data that have a significant skewed to the right
what are the relative values of the mean and median for the
original set of data choose only one possible answers mean is
greater median is greater or cannot determine?

Answer #1

Flight 4581 travels daily from Pittsburgh to San Antonio. The
flight is due into San Antonio at 5:07 p.m. The following list
gives the Flight arrival time relative to p.m. (in minutes) for a
selection of days. (A negative number means that the flight arrived
early.)
-5,-4,-4,-3,-2,2,2,3,4,5,6,6,6,11,17,25,26,36
(a) For these data, which measures of central tendency take more
than one value? Choose all that apply.
Mean
Median
Mode
None of these measures
(b) Suppose that the measurement -5 (the smallest...

Guadalajara Tours' daily sightseeing trip has a capacity of
people. Each day, tour officials record the number of people making
the trip. The data for a selection of summer days are as follows. ,
, , , , , , , , , , , , , , , , , , , (a) For these data, which
measures of central tendency take more than one value? Choose all
that apply. Mean Median Mode None of these measures (b) Suppose...

A survey of retirees was taken. Among other things, the retirees
were asked to report the age at which they retired. Here are those
22 ages (in years).
38,42,44,47,53,54,58,59,61,62,63,67,67,68,68,69,69,72,73,74,74,76
(a) Which measures of central tendency do not exist for this
data set? Choose all that apply.
Mean
Median
Mode
None of these measures
(b) Suppose that the measurement 76 (the largest measurement in
the data set) were replaced by 83. Which measures of central
tendency would be affected by the...

Here are the numbers of calls received during
20
randomly chosen,
15
-minute time intervals at a customer support service.
1
,
4
,
6
,
6
,
8
,
9
,
11
,
11
,
11
,
12
,
13
,
13
,
14
,
14
,
17
,
17
,
18
,
18
,
21
,
23
(a) Which measures of central tendency do not exist for this
data set? Choose all that apply.
Mean
Median
Mode
None...

Which one of the following is always true?
Select one:
a. The coefficient of variation measures variability in a
positively skewed data set relative to the size of the median.
b. None of the suggested answers are correct
c. The coefficient of variation is a measure of relative
dispersion that expresses the standard deviation as a percentage of
the mean, for any data on a ratio scale and an interval scale.
d. The interquartile range is very unique in the...

QUESTION 1 [13 MARKS]
Write down only the letter corresponding to your choice next to
the question number.
1.1. A random variable that can assume only a finite number of
values is referred to as a
a) Infinite sequence
b) Finite sequence
c) Discrete random variable
d) Discrete probability function
e) All of the above
1.2 Which one of the following statements is incorrect?
a) A data set provides information about people, objects or
other entities.
b) If the possible...

Data
For Tasks 1-8, consider the following data:
7.2, 1.2, 1.8, 2.8, 18, -1.9, -0.1, -1.5, 13.0, 3.2, -1.1,
7.0, 0.5, 3.9, 2.1, 4.1, 6.5
In Tasks 1-8 you are asked to conduct some computations
regarding this data. The computation should be carried out
manually. All the steps that go into the computation should be
presented and explained. (You may use R in order to verify your
computation, but not as a substitute for conducting the manual
computations.)
A Random...

1. A city official claims that the proportion of all commuters
who are in favor of an expanded public transportation system is
50%. A newspaper conducts a survey to determine whether this
proportion is different from 50%. Out of 225 randomly chosen
commuters, the survey finds that 90 of them reply yes when asked if
they support an expanded public transportation system. Test the
official’s claim at α = 0.05.
2. A survey of 225 randomly chosen commuters are asked...

MATHEMATICS
1. The measure of location which is the most likely to
be
influenced by extreme values in the data set is the a. range
b.
median c. mode d. mean
2. If two events are independent, then a. they must be
mutually
exclusive b. the sum of their probabilities must be equal to one
c.
their intersection must be zero d. None of these alternatives
is
correct. any value between 0 to 1
3. Two events, A and B,...

What tools could AA leaders have used to increase their
awareness of internal and external issues?
???ALASKA AIRLINES: NAVIGATING CHANGE
In the autumn of 2007, Alaska Airlines executives adjourned at
the end of a long and stressful day in the
midst of a multi-day strategic planning session. Most headed
outside to relax, unwind and enjoy a bonfire
on the shore of Semiahmoo Spit, outside the meeting venue in
Blaine, a seaport town in northwest
Washington state.
Meanwhile, several members of...

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