Question
In: Statistics and Probability
Perform the appropriate hypothesis test for the problem. State the hypotheses, identify the claim, compute the...
Perform the appropriate hypothesis test for the problem. State the hypotheses, identify the claim, compute the test statistic and P-value, make a decision, and write the interpretation in terms of the claim. For consistency, use a significance level of 0.05 for the problem.
Two brands of components are installed in a random sample of machines and the total machine operation time (in minutes) until the component needs to be replaced is recorded. Can you conclude that Brand 1 has a better mean lifetime based on the data below?
| Brand 1 | 36,925 | 45,300 | 36,240 | 32,100 | 37,210 | 48,360 | 38,200 |
| Brand 2 | 34,318 | 42,280 | 35,500 | 31,950 | 38,015 | 47,800 | 33,215 |
Solutions
orchestra answered 1 year agoRelated Solutions
Perform the appropriate hypothesis test for the problem. State the hypotheses, identify the claim, compute the...
Perform the appropriate hypothesis test for the problem. State
the hypotheses, identify the claim, compute the test statistic and
P-value, make a decision, and write the interpretation in terms of
the claim. For consistency, use a significance level of 0.05 for
the problem.
Two brands of components are compared by installing one of each
brand randomly in the right and left sides of several randomly
selected machines and noting the total machine operation time (in
minutes) until the component needs...
state the hypotheses and identify the claim, find the critical value(s), compute the test value, make...
state the hypotheses and identify the claim, find the critical
value(s), compute the test value, make the decision, summarize the
results (make the appropriate statement of the results of the claim
included rejection or non-rejection of the null hypothesis). PLEASE
SOLVE WITHOUT P VALUE and show all work including bell graph.
A random sample of high temperatures in June and July is listed.
At = 0.05, can it be concluded that there is a difference in
variances in high temperature...
a.) state the hypotheses and identify the claim
a.) state the hypotheses and identify the claim
b.) Find the critical value
3.) Compute the test value
4.) Make the decision
5.) Summarize the results to this problem: HOSPITALS and CESAREAN DELIVERY RATES--The national Cesarean delivery rate for a recent year was 32.2% (number of live births performed by Cesearan section). A randomn sample of 100 birth records from three large hospitals showed the following results for the type of birth. Test for homogeneity of proportion using a=0.10. HOSPITAL...
State the hypothesis and identify the claim. Find the critical value(s). Compute the test value. Make the decision.
For each problem, perform the following steps. Assume that all variables are normally or approximately normally distributed.
State the hypothesis and identify the claim.
Find the critical value(s).
Compute the test value.
Make the decision.
Summarize the results.
The heights (in feet) for a random sample of world famous cathedrals are listed below. In addition, the heights for a sample of the tallest buildings in the world are listed. Is there sufficient evidence at α = 0.05 to conclude...
Conduct a hypothesis test. Perform each of the following steps: a) state the hypothesis and identify...
Conduct a hypothesis test. Perform each of the following
steps:
a) state the hypothesis and identify the claim
b) Find the critical value(s)
c) Compute the test value
d) make the decision
e) Summarize the results
It has been found that the average time users spend online per
week is 18.3 hours. A random sample of 48 teenagers indicated that
their mean amount of Internet time per week was 19.5 hours with a
population standard deviation of 5.7. At the...
For each problem, follow these steps. State the hypotheses and identify the claim. Find the critical...
For each problem, follow these steps.
State the hypotheses and identify the claim.
Find the critical values(s).
Compute the test value.
Make the decision.
Summarize the results.
The reasons that workers in the 25-54 year old category were
displaced are listed below.
Plant closed/moved 44.8%
Insufficient work 25.2%
Position eliminated 30.0%
A random sample of 180 displaced workers (in this age category)
found that 40 lost their jobs due to their position being
eliminated, 53 due to insufficient work, and...
For each problem, follow these steps. State the hypotheses and identify the claim. Find the critical...
For each problem, follow these steps.
State the hypotheses and identify the claim.
Find the critical values(s).
Compute the test value.
Make the decision.
Summarize the results.
The number of grams of fat per serving for three different kinds
of pizza from several manufacturers is listed below. At the 0.01
level of significance, is there sufficient evidence that a
difference exists in mean fat content?
Cheese
Pepperoni
Supreme/Deluxe
18
20
16
11
17
27
19
15
17
20
18
17...
For each problem, follow these steps. State the hypotheses and identify the claim. Find the critical...
For each problem, follow these steps.
State the hypotheses and identify the claim.
Find the critical values(s).
Compute the test value.
Make the decision.
Summarize the results.
The average January high temperatures (in degrees Fahrenheit)
for selected tourist cities on different continents are listed
below. Is there sufficient evidence to conclude a difference in
mean temperatures for the three areas? Use the 0.05 level of
significance.
Europe
Central and South America
Asia
41
87
89
38
75
35
36
66...
Test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, and then state...
Test the given claim. Identify the null hypothesis,
alternative hypothesis, test statistic, P-value, and then state
the conclusion about the null hypothesis, as well as the final
conclusion that addresses the original claim. Among 2084 passenger
cars in a particular region, 241 had only rear license plates.
Among 349 commercial trucks, 53 had only rear license plates. A
reasonable hypothesis is that commercial trucks owners violate laws
requiring front license plates at a higher rate than owners of
passenger cars....
Test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, and then state...
Test the given claim. Identify the null hypothesis, alternative
hypothesis, test statistic, P-value, and then state the conclusion
about the null hypothesis, as well as the final conclusion that
addresses the original claim. Among
2173
passenger cars in a particular region,
235
had only rear license plates. Among
335335
commercial trucks,
5151
had only rear license plates. A reasonable hypothesis is that
commercial trucks owners violate laws requiring front license
plates at a higher rate than owners of passenger cars....
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