Question

Consider the following hypotheses:

*H*_{0}: *μ* = 1,800

*H*_{A}: *μ* ≠ 1,800

The population is normally distributed with a population standard
deviation of 440. Compute the value of the test statistic and the
resulting *p*-value for each of the following sample
results. For each sample, determine if you can "reject/do not
reject" the null hypothesis at the 10% significance level.
**(You may find it useful to reference the appropriate
table:** z table **or** t
table**)** **(Negative values should be
indicated by a minus sign. Round intermediate calculations to at
least 4 decimal places. Round "test statistic" values to 2 decimal
places and " p-value" to 4 decimal
places.)**

Test statistic | p-value |
|||

a. | x−x− = 1,850; n = 110 |
(Click to select) Reject H0 Do not reject H0 | ||

b. | x−x− = 1,850; n = 280 |
(Click to select) Reject H0 Do not reject H0 | ||

c. | x−x− = 1,650; n = 32 |
(Click to select) Reject H0 Do not reject H0 | ||

d. | x−x− = 1,700; n = 32 |
(Click to select) Reject H0 Do not reject H0 | ||

Answer #1

Consider the following hypotheses:
H0: μ = 9,100
HA: μ ≠ 9,100
The population is normally distributed with a population standard
deviation of 700. Compute the value of the test statistic and the
resulting p-value for each of the following sample
results. For each sample, determine if you can "reject/do not
reject" the null hypothesis at the 10% significance level.
(You may find it useful to reference the appropriate
table: z table or t
table) (Negative values should be
indicated...

Consider the following hypotheses:
H0: μ = 6,200
HA: μ ≠ 6,200
The population is normally distributed with a population standard
deviation of 700. Compute the value of the test statistic and the
resulting p-value for each of the following sample
results. For each sample, determine if you can "reject/do not
reject" the null hypothesis at the 10% significance level.
(You may find it useful to reference the appropriate
table: z table or t
table) (Negative values should be
indicated...

Consider the following hypotheses: H0: μ = 450 HA: μ ≠ 450 The
population is normally distributed with a population standard
deviation of 78. (You may find it useful to reference the
appropriate table: z table or t table) a-1. Calculate the value of
the test statistic with x− = 464 and n = 45. (Round intermediate
calculations to at least 4 decimal places and final answer to 2
decimal places.) a-2. What is the conclusion at the 10%
significance...

Consider the following hypotheses:
H0: μ = 23
HA: μ ≠ 23
The population is normally distributed. A sample produces the
following observations: (You may find it useful to
reference the appropriate table: z table
or t table)
26
25
23
27
27
21
24
a. Find the mean and the standard deviation.
(Round your answers to 2 decimal
places.)
Mean
Standard Deviation
b. Calculate the value of the test statistic.
(Round intermediate calculations to at least 4 decimal...

Consider the following hypotheses: H0: μ = 32 HA: μ ≠ 32 The
population is normally distributed. A sample produces the following
observations: (You may find it useful to reference the appropriate
table: z table or t table) 31 32 33 37 37 31 37 Click here for the
Excel Data File a. Find the mean and the standard deviation. (Round
your answers to 2 decimal places.) b. Calculate the value of the
test statistic. (Round intermediate calculations to at...

Consider the following hypotheses:
H0: μ = 110
HA: μ ≠ 110
The population is normally distributed with a population
standard deviation of 63. Use Table 1.
a.
Use a 1% level of significance to determine the critical
value(s) of the test. (Round your answer to 2 decimal
places.)
Critical value(s)
±
b-1.
Calculate the value of the test statistic with x−x− = 133 and
n = 80. (Round your answer to 2 decimal
places.)
...

1. Consider the following hypotheses:
H0: μ = 420
HA: μ ≠ 420
The population is normally distributed with a population standard
deviation of 72.
a-1. Calculate the value of the test statistic
with x−x− = 430 and n = 90. (Round intermediate
calculations to at least 4 decimal places and final answer to 2
decimal places.)
a-2. What is the conclusion at the 1% significance
level?
Reject H0 since the p-value is less
than the significance level....

9-12 Consider the following hypotheses:
H0: μ = 33
HA: μ ≠ 33
The population is normally distributed. A sample produces the
following observations: (You may find it useful to
reference the appropriate table: z table
or t table)
38
31
34
36
33
38
28
a. Find the mean and the standard deviation.
(Round your answers to 2 decimal
places.)
b. Calculate the value of the test statistic.
(Round intermediate calculations to at least 4 decimal
places and final...

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H0: μ ≥ 20
Ha: μ < 20
A sample of 50 provided a sample mean of 19.3. The population
standard deviation is 2.
(a)
Find the value of the test statistic. (Round your answer to two
decimal places.)
(b)
Find the p-value. (Round your answer to four decimal
places.)
p-value =
(c)
Using
α = 0.05,
state your conclusion.
Reject H0. There is sufficient evidence to
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There is...

Consider the following hypothesis test.
H0: μ ≤ 12
Ha: μ > 12
A sample of 25 provided a sample mean x = 14
and a sample standard deviation s = 4.65.
(a) Compute the value of the test statistic. (Round your answer
to three decimal places.)
(b) Use the t distribution table to compute a range for
the p-value.
a. p-value > 0.200
b. 0.100 < p-value <
0.200
c. 0.050 < p-value < 0.100
d. 0.025 < p-value...

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