Please show appropriate calculations as well as calculator work is applicable pl
ID: 3353485 • Letter: P
Question
Please show appropriate calculations as well as calculator work is applicable please!
You are conducting a test of homogeneity for the claim that two different populations have the same proportions of the following two characteristics. Here is the sample data.
What is the chi-square test-statistic for this data?
2=
Both before and after a recent earthquake, surveys were conducted asking voters which of the three candidates they planned on voting for in the upcoming city council election. Has there been a change since the earthquake? Use a level of significance of 0.05. Table shows the results of the survey. Has there been a change in the distribution of voter preferences since the earthquake?
Do male and female college students have the same distribution of living arrangements? Use a level of significance of 0.05. Suppose that 115 randomly selected male college students and 110 randomly selected female college students were asked about their living arrangements: dormitory, apartment, or other. The results are shown in Table. Do male and female college students have the same distribution of living arrangements?
What is the chi-square test-statistic for this data?
2=
You are conducting a multinomial hypothesis test for the claim that the 4 categories occur with the following frequencies:
HoHo : pA=0.4pA=0.4; pB=0.15pB=0.15; pC=0.3pC=0.3; pD=0.15pD=0.15
What is the chi-square test-statistic for this data?
2=
You are conducting a test of homogeneity for the claim that two different populations have the same proportions of the following two characteristics. Here is the sample data.
What is the chi-square test-statistic for this data?
2=
You are conducting a multinomial hypothesis test ( = 0.05) for the claim that all 5 categories are equally likely to be selected.
What is the chi-square test-statistic for this data?
2=
What are the degrees of freedom for this test?
d.f. =
Employers want to know which days of the week employees are absent in a five-day work week. Most employers would like to believe that employees are absent equally during the week. Suppose a random sample of 74 managers were asked on which day of the week they had the highest number of employee absences. The results were distributed as in Table. For the population of employees, do the days for the highest number of absences occur with equal frequencies during a five-day work week? Test at a 0.05% significance level.
What is the chi-square test-statistic for this data? (Report answer accurate to three decimal places.)
2=
What are the degrees of freedom for this test?
d.f. =
What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value =
The p-value is...
less than (or equal to)
greater than
This test statistic leads to a decision to...
reject the null
accept the null
fail to reject the null
accept the alternative
As such, the final conclusion is that...
There is sufficient evidence to warrant rejection of the claim that all 5 days of the week are equally likely to be selected.
There is not sufficient evidence to warrant rejection of the claim that all 5 days of the week are equally likely to be selected.
The sample data support the claim that all 5 days of the week are equally likely to be selected.
There is not sufficient sample evidence to support the claim that all 5 days of the week are equally likely to be selected.
What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value =
The p-value is...
less than (or equal to)
greater than
This test statistic leads to a decision to...
reject the null
accept the null
fail to reject the null
accept the alternative
As such, the final conclusion is that...
There is sufficient evidence to warrant rejection of the claim that all 5 categories are equally likely to be selected.
There is not sufficient evidence to warrant rejection of the claim that all 5 categories are equally likely to be selected.
The sample data support the claim that all 5 categories are equally likely to be selected.
There is not sufficient sample evidence to support the claim that all 5 categories are equally likely to be selected
You are conducting a test of the claim that the row variable and the column variable are dependent in the following contingency table.
Give all answers rounded to 3 places after the decimal point, if necessary.
(a) Enter the expected frequencies below:
(c) What is the critical value for this test of independence when using a significance level of = 0.05?
Critical Value: 2=
(d) What is the correct conclusion of this hypothesis test at the 0.05 significance level?
You intend to conduct a test of independence for a contingency table with 3 categories in the column variable and 6 categories in the row variable. You collect data from 600 subjects.
What are the degrees of freedom for the 2 distribution for this test?
d.f. =
#1 Population
#2 A 17 75 B 45 27
Explanation / Answer
1)
c1 c2 total
r1 17 75 92
r2 45 27 72
total 62 102 164
Oi 17 75 45 27
Ei 34.7804878 57.2195122 27.2195122 44.7804878
TS
(O-Ei)^2/Ei 9.089744467 5.525138794 11.61467349 7.05989957 33.28945632
TS = 33.28945
2)
since TS = 417 > critical value
we reject the null
there has been change
3)
since X^2 = 4.144213 < critical value
we fail to reject the null hypothesis
Ask rest questions again
You are supposed to ask one question at a time ,
Please rate
c1 c2 c3 sum r1 656 412 1238 2306 r2 1309 1531 1204 4044 sum 1965 1943 2442 6350 Eij 1 2 3 expected 1 713.589 705.5997 886.8113 2 1251.411 1237.4 1555.189 0i 656 412 1238 1309 1531 1204 Ei 713.589 705.5997 886.8113 1251.411 1237.4 1555.188661 sum (Oi-Ei)^2/Ei 4.64762 122.1667 139.0752 2.650201 69.6628 79.30451074 417.507 critical value 5.991465Related Questions
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