Question
In: Statistics and Probability
The average number of times Americans dine out in a week fell from 4.0 in 2008...
The average number of times Americans dine out in a week fell from 4.0 in 2008 to 3.8 in 2012. The number of times a sample of 20 families dined out last year provides the following data.
Table 4
|
60 |
10 |
50 |
30 |
70 |
3 |
50 |
30 |
10 |
30 |
|
40 |
10 |
20 |
40 |
10 |
40 |
50 |
60 |
30 |
500 |
Compute the mean and median.
- Compute the first and third quartiles.
- Compute the range and interquartile range.
- Compute the variance and standard deviation.
- The skewness measure for these data is 0.34. Comment on the shape of this distribution. is it the shape you would expect? Why or why not?
- Do the data contain outliers?
Solutions
orchestra answered 2 years agoRelated Solutions
The average number of times Americans dine out in a week fell from 4.0 in 2008...
The average number of times Americans dine out in a week fell
from 4.0 in 2008 to 3.8 in 2012 (Zagat.com, April 1, 2012). The
number of times a sample of 20 families dines out last week
provides the following data.
6
1
5
3
7
3
0
3
1
3
4
1
2
4
1
0
5
6
3
1
a) The skewness measure for these
data is 0.34. Comment on the shape of the distribution. Is it the...
The average number of times Americans dine out in a week fell from 4.0 in 2008...
The average number of times Americans dine out in a week fell
from 4.0 in 2008 to 3.8 in 2012. The number of times a sample of 20
families dined out last year provides the following data.
Table 4
60
10
50
30
70
3
50
30
10
30
40
10
20
40
10
40
50
60
30
500
Compute the mean and median.
Compute the first and third quartiles.
Compute the range and interquartile range.
Compute the variance and...
The average number of times Americans dine out in a week fell from 4.0 in 2008...
The average number of times Americans dine out in a week fell
from 4.0 in 2008 to 3.8 in 2012 (Zagat.com, April 1, 2012). The
number of times a sample of 20 families dined out last week
provides the following data: 6 1 5 3 7 3 0 3 1 3 1 2 4 1 0 5 6 3 1
4
Complete the following in Excel:
a. Compute the mean and median.
b. Compute the first and third quartiles.
c....
The average number of times Americans dine out in a week fell from in 2008 to in 2012....
The average number of times Americans dine out in a week fell
from in 2008 to in 2012. The number of times
a sample of families dined out last week provides the
following data.
7
2
6
4
8
4
1
4
2
4
5
2
3
5
2
0
6
7
4
2
a. Compute the mean and median.
Mean (to 2 decimals)
Median (to 1 decimal)
b. Compute the first and third quartiles. Round
the answers to 2 decimal places, if...
Between 2008 and 2013 the United States fell from 5th to 10th place in the Heritage...
Between 2008 and 2013 the United States fell from
5th to 10th place in the Heritage
Foundation’s World Ranking of Countries with the Most Economic
Freedom. In 2017, Hong Kong, Singapore and New Zealand respectively
hold the top 3 spots for being economically free and the
U.S. ranks 17th. Briefly explain why
the U.S. has continued to decline in its respective world
ranking.
Professor Venkat is on a mission to find out the average number of students absent from...
Professor Venkat is on a mission to find out the average number
of students absent from his lectures. For this, he analyzed 14
random attendance sheets from his previous semesters and found out
that on average, the number of absentees was 38 with a standard
deviation of 12. Let's assume that the data follows a Gaussian
distribution. Construct a 99% confidence interval for the true mean
of the dataset.
The average number of minutes Americans commute to work is 27.7 minutes. The average commute time...
The average number of minutes Americans commute to work is 27.7
minutes. The average commute time in minutes for 48 cities are as
follows.
Albuquerque
23.6
Jacksonville
26.5
Phoenix
28.6
Atlanta
28.6
Kansas City
23.7
Pittsburgh
25.3
Austin
24.9
Las Vegas
28.7
Portland
26.7
Baltimore
32.4
Little Rock
20.4
Providence
23.9
Boston
32.0
Los Angeles
32.5
Richmond
23.7
Charlotte
26.1
Louisville
21.7
Sacramento
26.1
Chicago
38.4
Memphis
24.1
Salt Lake
City
20.5
Cincinnati
25.2
Miami
31.0
San Antonio
26.4
Cleveland...
You are rolling a fair dice 100 times. Let N be the number of times out...
You are rolling a fair dice 100 times.
Let N be the number of times out of 100, when you roll an odd
number. What is the most suitable distribution for N? Type one of
the following (Poisson, binomial,
normal,geometric) .
Determine the probability that the number of times N out of
100, when you roll an odd number is 60 or more P ( N ≥ 60 )
= (use R and round to the third decimal place).
Which distribution is...
Fred fell from the garage roof when cleaning out the gutters after a storm. At the...
Fred fell from the garage roof when cleaning out the
gutters after a storm. At the hospital doctors concluded that he
had an Left T12 hemi-section.
What pathway that would carry proprioceptive information and
which side of the Fred's body would be effected. ?
Would Fred have voluntary movement of his lower limbs? consider
both left and right sides?
Would Fred still have a knee jerk reflex?
Would Fred be able to perceive the reflex?
Describe the types of sensory...
The number of times a machine broke down each week was observed over a period of...
The number of times a machine broke down each week was observed
over a period of 100 weeks and recorded as shown in the table
below. Complete parts a and b below.
Number of
Breakdowns
0
1
2
3
4
5 or More
Number of
weeks
9
22
32
26
6
5
a. Using alphaequals?0.10, perform a? chi-square test to determine
if the population distribution of breakdowns follows the Poisson
probability distribution.
What is the null? hypothesis, Upper H 0??...
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