Question
In: Statistics and Probability
The null hypothesis for an ANOVA analysis comparing four treatment means is rejected. The four sample...
The null hypothesis for an ANOVA analysis comparing four treatment means is rejected. The four sample means are = 10, = 12, = 15, = 18. The sample size for each treatment is the same. If ( - ) is significantly different from zero, then ________.
Solutions
orchestra answered 1 year agoRelated Solutions
a) If sample data are such that the null hypothesis is rejected at the alpha=5% level...
a) If sample data are such that the null hypothesis is rejected
at the alpha=5% level of significance based upon a 2 tailed test,
is H0 also rejected at the alpha=1% level of significance ?
Explain. b) If a 2 tailed hypothesis test leads to rejection of the
null hypothesis at a certain level of significance, would the
corresponding 1 tailed test lead to rejection of the null
hypothesis ? Explain.
A) If sample data are such that the null hypothesis is rejected at the alpha=5% level...
A) If sample data are such that the null hypothesis is rejected
at the alpha=5% level of significance based upon a 2 tailed test,
is Ho also rejected at the alpha=1% level of significance?
Explain.
B) If a 2 tailed hypothesis test leads to rejection of the null
hypothesis at a certain level of significance, would the
corresponding 1 tailed test lead to rejection of the null
hypothesis? Explain.
in hypothesis testing if the null hypothesis is rejected -the alternative hypothesis is likely to be...
in hypothesis testing if the null hypothesis is rejected
-the alternative hypothesis is likely to be true
- no conclusions can be drawn from the test
-the data must have been accumulated incorrectly
-the sample size has been to small
In a hypothesis test, the null hypothesis of < 81 is rejected because the P-value was...
In a hypothesis test, the null hypothesis of < 81 is rejected
because the P-value was 0.0465. The sample size “n” was 55 and the
sample mean was 84.5. Find the value of the population standard
deviation “σ”.
If the null hypothesis is rejected at the .05 level of significance, it will a. always...
If the null hypothesis is rejected at the .05 level of
significance, it will a. always not be rejected at the .10 level of
significance. b. always be rejected at the .10 level of
significance. c. sometimes be rejected at the .10 level of
significance. d. sometimes not be rejected at the .10 level of
significance.
A null hypothesis is not rejected at a given level of significance. As the assumed value...
A null hypothesis is not rejected at a given level of
significance. As the assumed value of the mean gets further away
from the true population mean, the Type II error will
1) Which of the following statements are true? If the null hypothesis is rejected at the...
1) Which of the following statements are true?
If the null hypothesis is rejected at the 1% level of
significance, then it will be rejected at 5% of level of
significance.
For a given confidence level, halving the margin of error
requires a sample twice as large.
For a specified confidence level, larger samples provide smaller
margins of error.
a) Ionly b) IIonly c) IIIonly d) IandIIonly e) IandIIIonly
2) Suppose that you take random samples of size n from...
Given the following sample information, test the hypothesis that the treatment means are equal at the...
Given the following sample information, test the hypothesis that
the treatment means are equal at the 0.05 significance level.
Treatment 1 - 8, 11 and 10. Treatment 2 - 3, 2, 1, 3, and 2.
Treatment 3 - 3, 4, 5 and 4. - (a) Compute SST, SSE, and SS total.
(Round your answers to 2 decimal places.) (b) Complete an ANOVA
table. (Round your answers to 2 decimal places.) Source SS df MS F
Treatments Error Total
The following is sample information. Test the hypothesis that the treatment means are equal. Use the...
The following is sample information. Test the hypothesis that
the treatment means are equal. Use the 0.10 significance level.
Treatment 1
Treatment 2
Treatment 3
5
10
5
3
8
5
10
10
8
10
6
3
b. What is the decision rule? (Round
the final answer to 2 decimal places.)
Reject H0 if the test statistic is greater
than?...
c. Compute SST, SSE, and SS total.
(Round the final answers to 3 decimal places.)
SST =
...
The following is sample information. Test the hypothesis that the treatment means are equal. Use the...
The following is sample information. Test the hypothesis that
the treatment means are equal. Use the 0.05 significance level.
Treatment 1
Treatment 2
Treatment 3
4
5
5
8
9
7
6
10
6
8
5
9
a. State the null hypothesis and the alternate
hypothesis.
H0:
(Click to
select) The treatment means are not all the
same. The treatment means are the same.
H1:
(Click to
select) The treatment means are not all the
same. The treatment means are...
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