Question
In: Statistics and Probability
The following data represent the time, in minutes, that a patient has to wait during 12...
The following data represent the time, in minutes, that a patient has to wait during 12 visits to a doctor’s office before being seen by the doctor:
17 15 20 20 32 28 12 26 25 25 35 24
Use a test at the 0.05 level of significance to test the doctor’s claim that the median waiting time for her patients is not more than 20 minutes.
Perform the Wilcoxon Rank-Sum Test, and then explain why it is an invalid testing method in this case.
Solutions
orchestra answered 2 years agoRelated Solutions
The following data represent the time, in minutes, that a patient has to wait during 12...
The following data represent the time, in minutes, that a
patient has to wait during 12 visits to a doctor’s office before
being seen by the doctor:
17 15 20 20 32 28 12 26 25 25 35 24
Use a test at the 0.05 level of significance to test the
doctor’s claim that the median waiting time for her patients is not
more than 20 minutes.
Can you use the Wilcoxon Rank-Sum Test or a t-test? If yes,
perform...
The following data represent the wait time, in minutes, for customers calling Dell technical support. 14...
The following data represent the wait time, in minutes, for
customers calling Dell technical support.
14 21 37 24 19 12 16 69 13
The interquartile range is _________.
Multiple Choice
* 13.5 minutes
* 30.5 minutes
* 19 minutes
* 17 minutes
The following data represent the time (in minutes) recorded for a sample of 20 employees in...
The following data represent the time (in minutes) recorded for
a sample of 20 employees in order to get to work using public
transportation.
12 37 24 5
9 42 46 39
54 34
22 50 58 30
27 118 61 47
18 15
(A) Does the sample contain any extreme values? Justify your
answer with a suitable test. Comment on the results ...
The sample
Contains Extreme Values
IQR =
, Lower Limit =
, Upper Limit =
,...
The following data represent the flight time (in minutes) of a random sample of seven flights...
The following data represent the flight time (in minutes) of a
random sample of seven flights from one city to another city.282
268 258 264 255 261 267
Compute the range and sample standard deviation of
flight time.
The range of flight time is .
The sample standard deviation of flight time is .
(Type an integer or decimal rounded to one decimal place as
needed.)
The following data represent the commute time (in minutes) x and a score on a well-being...
The following data represent the commute time (in minutes) x
and a score on a well-being survey y. The equation of the
least-squares regression line is Modifying Above y with caret
equals negative 0.0512 x plus 70.2089 and the standard error of the
estimate is 0.2843. Complete parts (a) through (e) below.
x 25 35 45 55 70 92 125 y 69.0 68.7 67.6 67.2 66.5 65.9
63.7
(a) Predict the mean well-being index composite score of all
individuals...
The following data represent the flight time (in minutes) of a random sample of seven flights...
The following data represent the flight time (in minutes) of a
random sample of seven flights from one city to another city.
282,
268,
258,
264,
255,
261,
267
Compute the range and sample standard deviation of flight
time.
The range of flight time is_______minutes.
The following data represent the commute time (in minutes) x and a score on a well-being...
The following data represent the commute time (in minutes) x
and a score on a well-being survey y. The equation of the
least-squares regression line is ModifyingAbove y with caret equals
negative 0.0522 x plus 69.3800 and the standard error of the
estimate is 0.3295. Complete parts (a) through (e) below. x 10
20 30 40 55 77 110 y 69.0 68.3 67.9 67.1 66.1 65.9 63.5 (a)
Predict the mean well-being index composite score of all
individuals whose commute...
The amount of time (in minutes) that a party hat to wait to be seated in...
The amount of time (in minutes) that a party hat to wait to be
seated in a restaurant has an exponential distribution with a mean
15. Find the probability that it will take between 10 and 20
minutes to be seated for a table. If a party has already waited 10
minutes for a table, what is the probability it will be at least
another 5 minutes before they are seated? If the restaurant decides
to give a free drink...
The wait time (after a scheduled arrival time) in minutes for a train to arrive is...
The wait time (after a scheduled arrival time) in minutes for a
train to arrive is Uniformly distributed over the interval [0,12].
You observe the wait time for the next 95 trains to arrive. Assume
wait times are independent.
Part a) What is the approximate probability (to
2 decimal places) that the sum of the 95 wait times you observed is
between 536 and 637?
Part b) What is the approximate probability (to
2 decimal places) that the average of...
The amount of time, in minutes that a person must wait for a bus is uniformly...
The amount of time, in minutes that a person must wait for a bus
is uniformly distributed between 4 and 16.5 minutes, X~U(4,
16.5).
a.) Find the mean of this uniform distribution.
b.) Find the standard deviation of this uniform
distribution.
c.) If there are 16 people waiting for the bus and using the
central limit theorem, what is the probability that the average of
16 people waiting for the bus is less than 8 minutes?
Please type detailed work...
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