Question

(1 point) Consider the population of four juvenile condors. Their weights in pounds are : 3, 5, 7, 11

(a) Let x be the weight of a juvenile condor. Write the possible unique values for x: (NOTE: Separate each value in the list with a comma.)

b) Find the mean of the population:

(c) Let x be the average weight from a sample of two juvenile condors. List all possible outcomes for x¯ (If a value occurs twice, make sure to list it twice.) This is the sampling distribution for samples of size 2: (NOTE: Separate each value in the list with a comma.)

d) Find the mean of the sampling distribution:

Answer #1

Consider the population of four juvenile condors. Their weights
in pounds are : 2, 3, 6, 10 (a) Let x be the weight of a juvenile
condor. Write the possible unique values for x: (NOTE: Separate
each value in the list with a comma.) ANS = 2,3,6,10 (b) Find the
mean of the population: ANS = 5.25 (c) Let x¯ be the average weight
from a sample of two juvenile condors. List all possible outcomes
for x¯. (If a value...

13) Weights of population of men has the mean of 170
pounds and the standard deviation of 27 pounds. Suppose 81 men from
this population are randomly selected for a certain study
The distribution of the sample mean weight is
a)exactly normal, mean 170 lb, standard deviation 27lb
b) approximately Normal, mean 170 lb, standard deviation 0.3
lb
c)approximately Normal, mean 170 lb, standard deviation
3 lb
d)approximately Normal, mean equal to the observed value of the
sample mean, standard deviation 27...

the San Andres Mountains gave the following weights
(pounds):
68
106
133
130
60
64
Assume that the population of x values has an
approximately normal distribution.
(a) Use a calculator with mean and sample standard deviation
keys to find the sample mean weight x and sample standard
deviation s. (Round your answers to one decimal
place.)
x =
lb
s =
lb
(b) Find a 75% confidence interval for the population average
weight ? of all adult mountain lions...

The assets (in billions of dollars) of the four wealthiest
people in a particular country are 43 comma 26 comma 17 comma 1343,
26, 17, 13. Assume that samples of size nequals=2 are randomly
selected with replacement from this population of four values.
a. After identifying the 16 different possible samples and
finding the mean of each sample, construct a table representing
the sampling distribution of the sample mean. In the table, values
of the sample mean that are the...

Suppose you roll two twenty-five-sided dice. Let X1, X2 the
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a random sample of size 2 from a uniform distribution on
integers.
a) What is population from which these random samples are drawn?
Find the mean (µ) and variance of this population (σ 2 )? Show your
calculations and results.
b) List all possible samples and calculate the value of the
sample mean ¯(X) and variance...

1) Three randomly selected households are surveyed. The numbers
of people in the households are 2, 7, and 12. Assume that samples
of size nequals2 are randomly selected with replacement from the
population of 2, 7, and 12. Construct a probability distribution
table that describes the sampling distribution of the proportion of
even numbers when samples of sizes nequals2 are randomly selected.
Does the mean of the sample proportions equal the proportion of
even numbers in the population? Do the...

The weights in pounds of discarded plastic from a sample of 62
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deviation of s = 1.065 . Using α = .05 , test the claim that the
mean weight of discarded plastic from the population of households
is greater than 1.8 lbs. Round all values to three decimal places
where necessary. State your null and alternative hypothesese. Use
\mu for μ . h 0 :...

The local bakery bakes more than a thousand 1-pound loaves of
bread daily, and the weights of these loaves varies. The mean
weight is 1.2 lb. and 2 oz., or 601 grams. Assume the standard
deviation of the weights is 25 grams and a sample of 46 loaves is
to be randomly selected.
(a) This sample of 46 has a mean value of x, which belongs to
a sampling distribution. Find the shape of this sampling
distribution.
skewed right
approximately...

The local bakery bakes more than a thousand 1-pound loaves of
bread daily, and the weights of these loaves varies. The mean
weight is 1.1 lb. and 4 oz., or 612 grams. Assume the standard
deviation of the weights is 26 grams and a sample of 50 loaves is
to be randomly selected.
(a) This sample of 50 has a mean value of x, which
belongs to a sampling distribution. Find the shape of this sampling
distribution.
skewed right
approximately...

1-Let x be the mean of a sample selected from a population.
a. What is the mean of the sampling distribution of x equal
to?
b. What is the standard deviation of the sampling distribution
of x equal to? Assume n∕N ≤ .05.
2-How does the value of σx change as the sample size increases?
Explain.
3-According to the 2015 Physician Compensation Report by
Medscape (a subsidiary of WebMD), American orthopedists earned an
average of $421,000 in 2014. Suppose that...

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