Question

Consider a sample with data values of 26, 25, 20, 15, 32, 34, 29, and 25. Compute the range, interquartile range, variance, and standard deviation (to a maximum of 2 decimals, if decimals are necessary).

Range | |

Interquartile range | |

Variance | |

Standard deviation |

Answer #1

By using R- software:

Answer:

Range: min=15, max=34

Inter Quartile Range: Q3-Q1= 29.75-23.75 = 6

Variance=38.21( round of 2 decimal)

Standard deviation=6.18( round of 2 decimal)

Consider a sample with
data values of 27, 24, 21, 19, 32, 36, 29, and 24. Compute the
range, interquartile range, variance, and standard deviation (to a
maximum of 2 decimals, if decimals are necessary).
Range
Interquartile range
Variance
Standard deviation

Consider a sample with data values of 26, 24, 20, 18, 32, 35,
29, and 24. Compute the 20th, 25th, 65th and75th percentiles (to 2
decimal, if decimals are necessary).

Consider a sample with data values of 27, 25, 20, 15, 30, 34,
28, and 25. Compute the 18th, 23rd, 66th, and 76th percentiles. If
needed, round your answers to two decimal digits.

Consider a sample with data values of 26 , 25 ,19 ,15 ,31 ,36 ,
28 , and 25 . Provide the five-number summary for the data.
Five-Number Summary Smallest value
First quartile (to 2 decimals)
Median (to 2 decimals)
Third quartile (to 2 decimals)
Largest value

Consider a sample with data values of 27, 25, 23, 16, 30, 33,
28, and 25. Compute the 20th ,25th ,65th ,75th percentiles (to 2
decimal, if decimals are necessary).
20th percentile
25th percentile
65th percentile
75th percentile
Consider a sample with data values of 26, 25, 23, 15, 30, 36,
29, and 25. Compute the range, interquartile range, variance, and
standard deviation (Round to 2 decimals, if necessary).
Range
Interquartile range
Variance
Standard deviation
Consider a sample with a...

Consider the following set of data: 15, 20, 21, 20, 36, 15, 25,
15.
a. What is the variance?
b. What is the interquartile range?

Consider a sample with data values of 27, 25, 20, 15, 31, 36,
28, and 25. Provide the five-number summary for the data.
Five-Number Summary
Smallest value
First quartile (to 2 decimals)
Median (to 2 decimals)
Third quartile (to 2 decimals)
Largest value

39 29 20 33 28
25 23 34 37 39
26 34 33 42 32
42 45 24 32 41
48 36 16 13 40
A survey of 25 randomly selected customers found the ages shown
(in years). The mean is 32.44 years and the standard deviation is
8.97 years. a) Construct a 99% confidence interval for the mean
age of all customers, assuming that the assumptions and conditions
for the confidence interval have been met. b) How large is...

Consider the following data set.
14
27
13
14
15
14
11
13
21
11
25
26
29
a)
Determine the quartiles for this data.
b)
Determine the interquartile range for this data.
a)
The first quartile is
nothing,
the second quartile is
nothing,
and the third quartile is
nothing.
(Type integers or decimals.)
b)
The interquartile range is
nothing.
(Type an integer or a decimal.)

Given the sample data. x: 21 17 15 32 25
(a) Find the range.
(b) Verify that Σx = 110 and Σx2 = 2,604. Σx = Σx2 = (
c) Use the results of part (b) and appropriate computation
formulas to compute the sample variance s2 and sample standard
deviation s. (Round your answers to two decimal places.)
s2 =
s =
(d) Use the defining formulas to compute the sample variance s2
and sample standard deviation s. (Round your...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 16 minutes ago

asked 26 minutes ago

asked 33 minutes ago

asked 38 minutes ago

asked 49 minutes ago

asked 51 minutes ago

asked 58 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago