Question
In: Statistics and Probability
Please state the null and alternative hypotheses. Using an alpha level of .05, please test the...
- Please state the null and alternative hypotheses.
- Using an alpha level of .05, please test the null hypothesis (what is the appropriate test, what is the critical value?). Draw the rejection region.
- Calculate the test statistic
- State the conclusion you are entitled to draw as a result of this test.
- Calculate the effect size as appropriate for the hypothesis test used.
- A current popular game relies on the rolling of twenty sided dice to determine success or failure. The current iteration occasionally uses rolling two dice, but only selecting the best roll to determine the outcome. An older edition merely modified the roll by 2 during these occasions. A sample of rolls under both conventions has been collected. The mean of 10 rolls using the two dice technique was 13.9 (SD = 3.8). The mean of 10 rolls using the older technique was 12.5 (SD = 4.4). Does the revised technique make a difference?
Solutions
Expert Solution
Concluaion
- Revised technique make a difference. PL??
orchestra answered 2 years agoRelated Solutions
Please state the null and alternative hypotheses. Using an alpha level of .05, please test the...
Please state the null and alternative
hypotheses.
Using an alpha level of .05, please test the null
hypothesis (what is the appropriate test, what is the critical
value?). Draw the rejection region.
Calculate the test statistic
State the conclusion you are entitled to draw as a
result of this test.
Calculate the effect size as appropriate for the
hypothesis test used.
A researcher has developed a new therapy for the treatment of
depression. The researcher has selected a small sample...
Please state the null and alternative hypotheses. Using an alpha level of .05, please test the...
Please state the null and alternative
hypotheses.
Using an alpha level of .05, please test the null
hypothesis (what is the appropriate test, what is the critical
value?). Draw the rejection region.
Calculate the test statistic
State the conclusion you are entitled to draw as a
result of this test.
Calculate the effect size as appropriate for the
hypothesis test used.
A professor believes that psychology students study more than
the average college student (after all, psychology students
understand the...
Please state the null and alternative hypotheses. Using an alpha level of .05, please test the...
Please state the null and alternative
hypotheses.
Using an alpha level of .05, please test the null
hypothesis (what is the appropriate test, what is the critical
value?). Draw the rejection region.
Calculate the test statistic
State the conclusion you are entitled to draw as a
result of this test.
Calculate the effect size as appropriate for the
hypothesis test used.
A recent study on the effects of Tamiflu looked into whether
the antiviral medication can reduce the duration of...
Exercise 1. Given the following null and alternative hypotheses, conduct a hypothesis test using an alpha...
Exercise 1. Given the following null and alternative hypotheses,
conduct a hypothesis test using
an alpha equal to 0.05. (Note: The population standard
deviations are assumed to be known.)
?0: ?1 – ?2 ≤ 0
?a: ?1− ?2> 0
? = 0.05
The sample means for the two populations are shown as
follows:
Sample 1
Sample 2
n1= 40
n2= 50
x1= 144
x2= 129
s1= 11
s2= 16
state all null and alternative hypotheses and use the appropriate test statistic. Please use Minitab and...
state all null and alternative hypotheses and use the
appropriate test statistic. Please use Minitab and show step by
step. Finally, draw your conclusions based on the Minitab
output
Capsule
Week
betacar
1
one
116
1
one
146
1
one
200
1
one
180
1
one
142
2
one
110
2
one
114
2
one
100
2
one
92
2
one
212
3
one
162
3
one
198
3
one
208
3
one
160
3
one
88
4
one
182...
state all null and alternative hypotheses and use the appropriate test statistic. Please use Minitab, show...
state all null and alternative hypotheses and use the
appropriate test statistic. Please use Minitab, show step by step.
Finally, draw your conclusions based on the Minitab
output.
The intake of high doses of beta-carotene in food substances has
been associated in some observational studies with a decreased
incidence of cancer. A clinical trial is being planned to compare
the incidence of cancer in a group of humans receiving
beta-carotene. Now there are four commercially available
beta-carotene capsules available on...
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...
**BY HAND** For the Data Below, please do the following: State the null and alternative hypotheses....
**BY HAND** For the Data Below, please do the
following:
State the null and alternative hypotheses. (2
points)
Construct an ANOVA table (20 pts)
Determine whether your results are significant (1
points)
Do a post hoc analysis (using Tukey’s HSD), if necessary
(5 points)
State your conclusions in one or two sentences. (2
points)
A survey was done in a community in which residents were
asked if they felt that family planning counseling was needed in
the community. The tabulation...
a. Please state both the null and alternative hypotheses for this question. b. Provide the decision...
a. Please state both the null and alternative hypotheses for
this question. b. Provide the decision rule for making this
decision. Use an alpha level of .05. c. Show all the work necessary
to calculate the appropriate statistic. d. What conclusion are you
allowed to draw? Write a conclusions sentence in APA format (i.e.,
it includes the appropriate statistical information).
A professor wants to determine whether her department should
keep the requirement of college algebra as a prerequisite for an...
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