Question
In: Statistics and Probability
Find the P-value for the hypothesis test with the standardized test statistic z. Decide whether to...
- Find the P-value for the hypothesis test with the standardized test statistic z. Decide whether to reject H0 for the level of significance α.
Right-tailed test
z = 0.52
α = 0.06
- A manufacturer claims that the mean lifetime of its fluorescent bulbs is 1000 hours. A homeowner selects 40 bulbs and finds the mean lifetime to be 990 hours with a standard deviation of 80 hours. Test the manufacturer’s claim. Use α = 0.04 and use traditional approach.
Solutions
orchestra answered 1 year agoRelated Solutions
Find the P- value for the hypothesis test with the standardized test statistic z. Decide whether...
Find the P- value for the hypothesis test with the standardized
test statistic z. Decide whether to reject H0 for the level of
significance α. Two- tailed test z = 1.95 α = 0.05
Find the P-value for the hypothesis test with the standardized test statistic z. Decide whether to...
Find the P-value for the hypothesis test with the standardized
test statistic z. Decide whether to reject H0 for the level of
significance α. ( Marks 2)
Right-tailed test
z = 0.52
α = 0.06
Find the P-value for the indicated hypothesis test with the given standardized test statistic, z. Decide...
Find the P-value for the indicated hypothesis test with the
given standardized test statistic, z. Decide whether to reject
Upper H0
for the given level of significance
alphaα.
Two-tailed test with test statistic
zequals=−2.18
and
alphaαequals=0.04
P-valueequals=
p-value=___ (round to four decimal places if needed)
state your conclusion.
fail to reject or reject h0
#38
Find the P-value for the indicated hypothesis test with the given standardized test statistic, z. Decide...
Find the P-value for the indicated hypothesis test with the
given standardized test statistic, z. Decide whether to reject
Upper H 0H0
for the given level of significance
alphaα.
Two-tailed test with test statistic
z=- −2.15 0.08
test statistic
z= -2.15 and α=0.08
P-value=_____
(Round to four decimal places as needed.)
2)Find the critical value(s) and rejection region(s) for the
indicated t-test, level of significance
α,and sample size n. Left-tailed test,
α=0.10,
n=13
The critical value(s) is/are
Question No 4 Find the P-value for the hypothesis test with the standardized test statistic z....
Question No 4
Find the P-value for the hypothesis test with the standardized
test statistic z. Decide whether to reject H0 for the level of
significance α. (Marks 1.5)
Left -tailed test
z = -1.52
α = 0.04
A trucking firm suspects that the mean life of a certain tire
it uses is less than 35,000 miles. To check the claim, the firm
randomly selects and tests 18 of these tires and gets a mean
lifetime of 34,450 miles with...
1) Find the P-value for a left-tailed hypothesis test with a test statistic of z=-2.23. Decide...
1) Find the P-value for a left-tailed hypothesis test with a
test statistic of z=-2.23. Decide whether to reject the null
hypothesis (Ho) if the level of significance (alpha) equals
0.01
2) Find the P-value for a right-tailed hypothesis test with a
test statistic of z=1.82. Decide whether to reject the null
hypothesis (Ho) if the level of significance (alpha) equals
0.09
3) Find the P-value for a two-tailed hypothesis test with a test
statistic of z=2.14. Decide whether to...
Find the P - value for the test statistic z=−1.41 for the following null and alternative...
Find the P - value for the test statistic z=−1.41 for
the following null and alternative hypotheses:
H0: The population mean is 50.
Ha: The population mean is less than 50.
The P - value is
(b) Find the P - value for the test statistic z=−1.41 for
the following null and alternative hypotheses:
H0: The population mean is 50.
Ha: The population mean is not equal to 50.
The P - value is
11. Determine the p-value given the stated hypothesis and the test statistic value (Z) Ho:μ= 300...
11. Determine the p-value given the stated hypothesis and the
test statistic value (Z) Ho:μ= 300 H1: μ < 300; z = -2.13 Answer
to 4 decimal places.
12. Determine the p-value given the stated hypothesis and test
statistic value (Z). Ho: μ = 120 H1: μ ≠ 120; z = 1.92.
Answer to 4 decimal places.
13. Some people claim that the physical demand on dancers are
such that dancers tend to be shorter than the typical person.
Nationally,...
3. Find the rejection region (for the standardized test statistic) for each hypothesis test. Identify the...
3. Find the rejection region (for the standardized test
statistic) for each hypothesis test. Identify the test as
left-tailed, right-tailed, or two-tailed.
H0:μ=141H0:μ=141 vs. Ha:μ<141Ha:μ<141 @
α=0.20.α=0.20.
H0:μ=−54H0:μ=−54 vs. Ha:μ<−54Ha:μ<−54 @
α=0.05.α=0.05.
H0:μ=98.6H0:μ=98.6 vs. Ha:μ≠98.6Ha:μ≠98.6 @ α=0.05.α=0.05.
H0:μ=3.8H0:μ=3.8 vs. Ha:μ>3.8Ha:μ>3.8 @ α=0.001.
1. For the standardized test statistic approach to hypothesis testing, calculate the test statistic for testing...
1. For the standardized test statistic approach to hypothesis
testing, calculate the test statistic for testing the null
hypothesis that the population mean is less than or equal to
9.29, given a sample mean of
13.90, a sample size of 35, and a
population standard deviation of 3.92.
Round to two decimals.
2. Using the traditional hypothesis testing approach, calculate
the critical value for testing the null hypothesis that the
population mean is greater than or equal to 13,
given...
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