Question
In: Statistics and Probability
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 a longer life? Use ? = 0.01.
Solutions
Theory
of hypothesis testing is below. 
orchestra answered 1 year agoRelated Solutions
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...
For each hypothesis test, you must state (a) hypotheses, (b) test statistic, p-value, (c) rejection rule,...
For each hypothesis test, you must state (a)
hypotheses, (b) test statistic, p-value, (c) rejection rule, and
(d) both parts of the conclusion. It is only necessary to
calculate the effect size if the problem calls for it. Use a .05
level of significance for all hypothesis tests. Use StatCrunch to
complete all hypothesis tests and confidence intervals. Make sure
you copy and paste the relevant output for the solutions.
Honor code expectations: you are not allowed any collaboration
or...
Calculate the test statistic and p-value for each sample mean and make the statistical decision (3...
Calculate the test statistic and p-value for each sample mean
and make the statistical decision (3 points each).
1. H0: µ ≤ 16 versus H1: µ > 16, x = 17, s = 5, n = 25, α =
0.05 test statistic___________ p-value___________ Decision (circle
one) Reject the H0 Fail to reject the H0
2. H0: µ ≥ 205 versus H1: µ < 205, x = 198, σ = 15, n = 20, α
= 0.05 test statistic___________ p-value___________ Decision...
State the null and alternative hypotheses, calculate the test statistic, determine the critical value for the...
State the null and alternative hypotheses, calculate the test
statistic, determine the critical value for the given alpha,
determine whether to reject or retain the null, and then draw a
conclusion about the original study based on the significance test
results.
4. The following data were observed when examining the reasons
for using teasing statements in the discourse of college
students.
Trying to Impress Not Trying to Impress
Males 30 10
Females 20 30
a. (2 point) State the null...
State the null and alternative hypotheses, calculate the test statistic, determine the critical value for the...
State the null and alternative hypotheses, calculate the test
statistic, determine the critical value for the given alpha,
determine whether to reject or retain the null, and then draw a
conclusion about the original study based on the significance test
results.
3. Two hundred and twenty fifth-graders in Norman took an IQ
test. Students were placed in one of eight categories based on
their IQ score. Determine whether this distribution of 114 fifth
graders differs from the theoretical distribution based...
Conduct the hypothesis test and provide the test statistic, critical value, and P-value, and state the...
Conduct the hypothesis test and provide the test statistic,
critical value, and P-value, and state the conclusion. A person
randomly selected 100 checks and recorded the cents portions of
those checks. The table below lists those cents portions
categorized according to the indicated values. Use a 0.10
significance level to test the claim that the four categories are
equally likely. The person expected that many checks for whole
dollar amounts would result in a disproportionately high frequency
for the first...
Conduct the hypothesis test and provide the test statistic, critical value and P-value, and state the...
Conduct the hypothesis test and provide the test statistic,
critical value and P-value, and state the conclusion. A person
drilled a hole in a die and filled it with a lead weight, then
proceeded to roll it 200 times. Here are the observed frequencies
for the outcomes of 1, 2, 3, 4, 5, and 6, respectively: 28,
31, 44, 38, 26, 33. Use a 0.025 significance level to test the
claim that the outcomes are not equally likely. Does it...
Conduct the hypothesis test and provide the test statistic, critical value and P-value, and state the...
Conduct the hypothesis test and provide the test statistic,
critical value and P-value, and state the conclusion.
A person randomly selected
100
checks and recorded the cents portions of those checks. The
table below lists those cents portions categorized according to the
indicated values. Use a
0.100
significance level to test the claim that the four categories
are equally likely. The person expected that many checks for whole
dollar amounts would result in a disproportionately high frequency
for the first...
Conduct the hypothesis test and provide the test? statistic, critical value and? P-value, and state the...
Conduct the hypothesis test and provide the test? statistic,
critical value and? P-value, and state the conclusion. A person
randomly selected 100100 checks and recorded the cents portions of
those checks. The table below lists those cents portions
categorized according to the indicated values. Use a 0.100.10
significance level to test the claim that the four categories are
equally likely. The person expected that many checks for whole
dollar amounts would result in a disproportionately high frequency
for the first?...
Conduct the hypothesis test and provide the test statistic, critical value and P-value, and state the...
Conduct the hypothesis test and provide the test statistic,
critical value and P-value, and state the conclusion.
A person drilled a hole in a die and filled it with a lead
weight, then proceeded to roll it
200200
times. Here are the observed frequencies for the outcomes of 1,
2, 3, 4, 5, and 6, respectively:
2626,
3030,
4848,
4141,
2828,
2727.
Use a
0.010.01
significance level to test the claim that the outcomes are not
equally likely. Does it...
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