Question

In: Statistics and Probability

Is there an association between party affiliation and gender at the 10% significance level? The table...

Is there an association between party affiliation and gender at the 10% significance level? The table below shows a random sample of voters.

Female Male

Republican 105 115

Democrat 150 103

Independent 150 179

Conduct a full hypothesis test. Be sure to:

• state the test and calculator test

• find expected counts

• check conditions

1. state hypotheses

2. find Chi-Square value and df

3. state significance level

4. find p-value and draw/shade the graph

5. make a decision 6. write a conclusion

Expert Solution

orchestra answered 1 year ago

Is there an association between party affiliation and gender? The accompanying data represent the gender and...

Is there an association between party affiliation and gender? The accompanying data represent the gender and party affiliation of registered voters based on a random sample of 800 adults. Complete parts (a) through (f). Females Males Republicans 105 115 Democrat 150 101 Independent 150 179 (a) Construct a frequency marginal distribution. (b) Construct a relative frequency marginal distribution. (c) What proportion of registered voters considers themselves to be Independent? (d) Construct a conditional distribution of party affiliation by gender. (e)...

At the 0.05 level of significance, is there evidence of a relationship between gender and the...

At the 0.05 level of significance, is there evidence of a relationship between gender and the searched meal type? (Give detailed answer.) What is the expected frequency in case of categories: males and breakfast? If there is a significant stochastic relationship, compute and interpret the Cramer indicator. Food type/Gender Male Female Total Breakfast 12 32 44 Appetizer 41 32 73 Main course (lunch or supper) 49 54 103 Dessert 37 43 80 Total 139 161 300

A sociologist wanted to determine whether there are statistically significant differences between peoples political party affiliation...

A sociologist wanted to determine whether there are statistically significant differences between peoples political party affiliation and their attitudes towards welfare. Independent samples of Democrats and Republicans were drawn at random and administered an attitude scale (ranged from 0 to 10, where 10 was the most favorable attitude). Mean Standard Deviation n Democrats 8.14 2.19 7 Republicans 5.71 2.81 7 Use this information to answer questions #2 - 5. Question 2 What is t? (round to the thousandths) Question 3...

12. Political Party Affiliation and Class level Freshman Sophomore Junior Senior Total Democrat 1 4 5...

12. Political Party Affiliation and Class level Freshman Sophomore Junior Senior Total Democrat 1 4 5 3 13 Republican 4 8 4 2 18 Green 1 3 3 2 9 Libertarian 1 1 2 1 5 Peace/Freedom 2 3 3 2 10 Total 6 15 12 7 55 Perform a hypothesis test to determine whether there is an association between class levels and political party affiliation.

A poll classified respondents by gender and political party, as shown in the table. We wonder...

A poll classified respondents by gender and political party, as shown in the table. We wonder if there is evidence of an association between gender and party affiliation. (Assume a significance level of alpha=0.05) D R I Male 36 45 25 Female 51 38 13 calculate chi-square statistic x²=

At the 0.01 significance level, do the data provide sufficient evidence to conclude that an association...

At the 0.01 significance level, do the data provide sufficient evidence to conclude that an association exists between car color and the likelihood of being in an accident? Red Blue White Car has been in accident 28 33 36 Car has not been in accident 23 22 30 Chi- Square Please show all work and both p value and critical value approach

To determine if there is an association between gender and accident circumstances, 146 people who had...

To determine if there is an association between gender and accident circumstances, 146 people who had been injured in an accident were randomly selected from medical records and categorised by gender and the circumstance. The results are shown below: At work At home car Other total female 4 28 6 24 62 male 18 26 4 36 84 total 22 54 10 60 146 a) State the null and alternative hypotheses for this test of association/independence. b) How many degrees...

3.6 To determine if there is an association between gender and accident circumstances, 146 people who...

3.6 To determine if there is an association between gender and accident circumstances, 146 people who had been injured in an accident were randomly selected from medical records and categorised by gender and the circumstance. The results are shown below: At work At home car Other total female 4 28 6 24 62 male 18 26 4 36 84 total 22 54 10 60 146 a) State the null and alternative hypotheses for this test of association/independence. b) How many...

To understand the variation in political party affiliation, calculate the Index of Qualitative Variation (IQV) for...

To understand the variation in political party affiliation, calculate the Index of Qualitative Variation (IQV) for Whites, African Americans and Latinos. (6 pts) Compared to the whites, do the other two groups (Latinos and African Americans) present higher variability in political party affiliation? (2 pts) (HINT: K=4) Political Party Affiliation White (%) African American (%) Latino (%) Republican 59 41 43 Democrat 30 56 46 Libertarian 3 1 2 Independent 8 2 8 Total 100 100 100

What is the difference between measures of association and tests of statistical significance? Give an example...

What is the difference between measures of association and tests of statistical significance? Give an example for each.