Question

#10 The following are the interval times (minutes) between eruptions of a geyser. Detemine the five number summary and construct a box plot from the data below. 81 83 85 86 87 90 91 93 94 94 98 98 99 101 101 103 The 5-number summary is _____

Answer #1

Given the

The following are the interval times? (minutes) between
eruptions of a geyser. Detemine the five number summary and
construct a box plot from the data below.
83?84??85???87??89??90??91??92??94??97???97??98???99???104??106?109
The number 5 summary is?

Listed below are time intervals (min) between eruptions of a
geyser. The "recent" times are within the past few years, and
the "past" times are from 1995. Does it appear that the variation
of the times between eruptions has changed? Use a 0.05
significance level. Assume that the two populations are normally
distributed.
77
86
90
91
91
93
76
96
57
62
101
87
62
89
90
92
69
84
92
95
84
86
81
96

Listed below are time intervals (min) between eruptions of a
geyser. Assume that the "recent" times are within the past few
years, the "past" times are from around 20 years ago, and that
the two samples are independent simple random samples selected from
normally distributed populations. Do not assume that the population
standard deviations are equal. Does it appear that the mean time
interval has changed? Is the conclusion affected by whether the
significance level is 0.10 or 0.01? Recent...

Suppose a geyser has a mean time between eruptions of 86 minutes
Let the interval of time between the eruptions be normally
distributed with standard deviation 26 minutes
.
(a) What is the probability that a randomly selected time
interval between eruptions is longer than 99 minutes?
(b) What is the probability that a random sample of 9 time
intervals between eruptions has a mean longer than 99 minutes?

steps on STATCRUNCH
Listed below are time intervals (min) between eruptions of a
geyser. Assume that the "recent" times are within the past few
years, the "past" times are from around 20 years ago, and that
the two samples are independent simple random samples selected from
normally distributed populations. Do not assume that the population
standard deviations are equal. Does it appear that the mean time
interval has changed? Is the conclusion affected by whether the
significance level is 0.10...

Suppose a geyser has a mean time between eruptions of 86
minutes. Let the interval of time between the eruptions be normally
distributed with standard deviation 19 minutes. Complete parts (a)
through (e) below.
(a) What is the probability that a randomly selected time
interval between eruptions is longer than 94 minutes?
(b) What is the probability that a random sample of 9 time
intervals between eruptions has a mean longer than 94 minutes?
(c) What is the probability that...

The following data are the lengths of time (in minutes) between
eruptions for a sample of eruptions of the Old Faithful geyser in
Yellowstone National Park. 83 76 86 82 87
a. Calculate the mean, variance, and standard deviation for the
data. Be sure to follow the rounding conventions and include the
correct units!
X = _____ s2 = _____ s = _____
b. Based on the mean and standard deviation, would 90 minutes be
considered significantly high? Justify your...

have a java application need to create an application which is
able to do some analysis on temperature data stored in a data file.
You will be given the “temperatures.dat” data file which contains
the data you must analyze. The analysis you’ll need to do is:
Total number of data points
Find coldest temperature
Find warmest temperature
Find average temperature
Find the frequency of each temperature
Find the most frequent temperature
Find the least frequent temperature
All classes must be...

Suppose a geyser has a mean time between eruptions of 85
minutes. Let the interval of time between the eruptions be normally
distributed with standard deviation 23 minutes.
What is the probability that a random sample of 9 time intervals
between eruptions has a mean longer than 96 minutes?
The probability that the mean of a random sample of 9 time
intervals is more than 96 minutes is approximately _______.
(Round to four decimal places as needed.)

Suppose a geyser has a mean time between eruptions of 85
minutes. Let the interval of time between the eruptions be normally
distributed with standard deviation 23 minutes.
What is the probability that a random sample of 18 time
intervals between eruptions has a mean longer than 96 minutes?
The probability that the mean of a random sample of 18 time
intervals is more than 96 minutes is approximately_______. (Round
to four decimal places as needed.)

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