Question
In: Statistics and Probability
3. Take the mean and standard deviation of data set A calculated in problem 1 and...
3. Take the mean and standard deviation of data set A
calculated in problem 1 and assume that they are population
parameters (μ and σ) known for the variable fish length in a
population of rainbow trouts in the Coldwater River. Imagine that
data set B is a sample obtained from a different population in Red
River (Chapter 6 problem!).
a) Conduct a hypothesis test to see if the mean fish length in the
Red River population is different from the population in Coldwater
River.
b) Conduct a hypothesis test to see if the variance in fish length
is different in the Red River population compared to the variance
in the Coldwater population.
please explain to me how to do this step by step.
thank you!
Solutions
orchestra answered 2 years agoRelated Solutions
3. Take the mean and standard deviation of data set A calculated in problem 1 and...
3. Take the mean and standard deviation of data
set A calculated in problem 1 and assume that they are population
parameters (μ and σ) known for the variable fish length in a
population of rainbow trouts in the Coldwater River. Imagine that
data set B is a sample obtained from a different
population in Red River (Chapter 6 problem!).
Conduct a hypothesis test to see if the mean fish length in the
Red River population is different from the...
3. Take the mean and standard deviation of data set A calculated in problem 1 and...
3. Take the mean and standard deviation of data set A calculated
in problem 1 and assume that they are population parameters (μ and
σ) known for the variable fish length in a population of rainbow
trouts in the Coldwater River. Imagine that data set B is a sample
obtained from a different population in Red River (Chapter 6
problem!). a) Conduct a hypothesis test to see if the mean fish
length in the Red River population is different from...
Take the mean and standard deviation of data set A calculated in problem 1 and assume...
Take the mean and standard deviation of data set A calculated in
problem 1 and assume that they are population parameters (μ and σ)
known for the variable fish length in a population of rainbow
trouts in the Coldwater River. Imagine that data set B is a
sample obtained from a different population in Red
River (Chapter 6 problem!).
Conduct a hypothesis test to see if the mean fish length in the
Red River population is different from the population...
Suppose you calculated the mean, median, mode, and sample standard deviation of a data set. The...
Suppose you calculated the mean, median, mode, and sample
standard deviation of a data set. The results are shown below.
Mean: 44
Median: 31
Mode: 46
Sample Standard Deviation: 2
If each number in the data set was decreased by 4 units, what would
be the new values of these statistics?
Fill in your results below.
New Mean:
New Median:
New Mode:
New Sample Standard Deviation:
the mean of the data set: 37634.3 the standard deviation of the data set: 10967.85287 the...
the mean of the data set: 37634.3
the standard deviation of the data set:
10967.85287
the sample size of the data set: 50
Using the numbers above calculate the following
Show your step-by-step work for each
question:
Determine the 90% confidence interval, assuming that sigma is
unknown, list each in proper (lower bound, upper bound) notation.
Make a confidence statement.
Determine the 95% confidence interval, assuming that sigma is
unknown, list each in proper (lower bound, upper bound) notation.
Make...
Find the mean, median, mode, and standard deviation of the following set of data: 2, 3,...
Find the mean, median, mode, and standard deviation of the
following set of data: 2, 3, 3, 4, 5, 6, 9
Mean_____________________ Median____________________
Mode_____________________ Standard Deviation__________
You roll two fair dice, a green one and a red one. Find the
probability of getting a sum of 6 or a sum of 4.
___________________
You draw two cards from a standard deck of 52 cards without
replacing the first one before drawing the second. Find the
probability of drawing an ace...
A set of data is normally distributed with a mean of 37 and a standard deviation...
A set of data is normally distributed with a mean of 37 and a
standard deviation of 1.5. If you randomly select a data point and
it is 37.75, which of the following would describe that data
point?
Unusually large (Statistically significant)
Unusually small (Statistically significant)
Not unusual (Not statistically significant)
Not enough information
Find the standard deviation for a set of data that has a mean of 100 and...
Find the standard deviation for a set of data that has a mean of
100 and 95% of the data falls between 70 and 130.
** Please show me the procedure, thanks!!!
The standard deviation for a set of stock returns can be calculated as the: A. positive...
The standard deviation for a set of stock returns can be
calculated as the:
A. positive square root of the average return
B. average squared difference between the actual and the average
return
C. positive square root of the variance
D. variance squared
A statistical practitioner determined that the mean and standard deviation of a data set which is...
A statistical practitioner determined that the mean and
standard deviation of a data set which is symmetrical and normal
(bell-shaped) were 120 and 10, respectively. What can you say about
the proportions of observations that lie between each of the
following intervals?
a. 90 and 150
b. 100 and 140
c. 110 and 150
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