Question
In: Statistics and Probability
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 between the two months?
June | 110 111 122 115 106 100 117 111 103 116
July | 120 115 118 124 115 98 113 101 105
Solutions
orchestra answered 2 years agoRelated Solutions
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...
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...
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...
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...
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. H0: H1: Find the critical value and determine what...
State the hypothesis and identify the claim.
H0:
H1:
Find the critical value and determine what error level to use.
For all the problems on this homework use an alpha level of .05
Determine if the test is right tailed, left tailed or
non-directional.
Compute the test Value It will be an ANOVA,
Make a decision to reject or fail to reject the null
hypothesis.
Summarize the results
Problem #2 You are a researcher who wants to know if there...
State the hypotheses, state the test statistic, state the P-value, make an decision, and state a...
State the hypotheses, state the test statistic, state
the P-value, make an decision, and state a conclusion.
A sample of five third graders took a reading test. They then
went on their winter break, and took the test again when they
returned. Following are the test scores for each of the students
before and after the winter break. Can you conclude that the mean
reading score was lower after the winter break? Use ? = 0.05.
Assume the populations are...
State the hypotheses, state the test statistic, state the P-value, make an decision, and state a...
State the hypotheses, state the test statistic, state
the P-value, make an decision, and state a conclusion.
A certain type of calculator battery has a mean lifetime of 150
hours and a standard deviation of of ? = 15 hours. A company has
developed a new battery and claims it has a longer mean life. A
random sample of 1000 batteries is tested, and their sample mean
life is ?̀…= 151.2 hours. Can you conclude that the new battery has...
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