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new data design. d) Again, we will obtain a 90% confidence interval to make the hypothesis test decision by following these directions. ● ● ● ● Please consider the ● In Rguroo, go to Analytics Analysis → Mean Inference → One & Two Populations. In the Dataset dropdown, select RBRapSample32. In the Variable 1 dropdown, select RBValence. Variable 2 dropdown, select Rap Valence. Under the Summary tab, check the box to the left of Paired Data. Next, select the fourth tab Population 1-2 and note that the Confidence Interval- tab is selected. Change the Confidence level to 0.90. Then, select t-statistic under Method. Leave the Assumptions box on the right as is and click Preview. Provide either a screenshot or a copy of your confidence interval output table and state the confidence interval. e) Make a decision whether or not to reject the null hypothesis using the confidence interval by checking to see if the null value is captured by the confidence interval. State the decision and explanation in one sentence. f) Draw a conclusion about the claim using one or two sentences in context of the problem. g) Verify your decision by obtaining a test statistic and p-value in Rguroo. Follow the directions presented in part (d). Now, select the Test of Hypothesis tab. In this tab, change the significance level to 0.10 and update the alternative hypothesis. Select t- statistic under Method. Leave the Assumptions box on the right as is. Click Preview. Provide either a screenshot or a copy of your hypothesis test output table and verify your decision by comparing your p-value to the significance level in one complete sentence. h) Compare the values of the standard errors calculated in 3.1(c) and 3.2(d). Why do you believe these standard errors differ? Answer these questions in one or two sentences. i) Can we generalize these results to a larger group (i.e. a population)? Answer this question in one sentence and please provide a reason for your answer. j) Can we determine if a cause and effect relationship exists between the variables? Answer this question in one sentence and please provide a reason for your answer. Investigation 4: Analyzing Changes over Time 6

new data design. d) Again, we will obtain a 90% confidence interval to make the hypothesis test decision by following these directions. ● ● ● ● Please consider the ● In Rguroo, go to Analytics Analysis → Mean Inference → One & Two Populations. In the Dataset dropdown, select RBRapSample32. In the Variable 1 dropdown, select RBValence. Variable 2 dropdown, select Rap Valence. Under the Summary tab, check the box to the left of Paired Data. Next, select the fourth tab Population 1-2 and note that the Confidence Interval- tab is selected. Change the Confidence level to 0.90. Then, select t-statistic under Method. Leave the Assumptions box on the right as is and click Preview. Provide either a screenshot or a copy of your confidence interval output table and state the confidence interval. e) Make a decision whether or not to reject the null hypothesis using the confidence interval by checking to see if the null value is captured by the confidence interval. State the decision and explanation in one sentence. f) Draw a conclusion about the claim using one or two sentences in context of the problem. g) Verify your decision by obtaining a test statistic and p-value in Rguroo. Follow the directions presented in part (d). Now, select the Test of Hypothesis tab. In this tab, change the significance level to 0.10 and update the alternative hypothesis. Select t- statistic under Method. Leave the Assumptions box on the right as is. Click Preview. Provide either a screenshot or a copy of your hypothesis test output table and verify your decision by comparing your p-value to the significance level in one complete sentence. h) Compare the values of the standard errors calculated in 3.1(c) and 3.2(d). Why do you believe these standard errors differ? Answer these questions in one or two sentences. i) Can we generalize these results to a larger group (i.e. a population)? Answer this question in one sentence and please provide a reason for your answer. j) Can we determine if a cause and effect relationship exists between the variables? Answer this question in one sentence and please provide a reason for your answer. Investigation 4: Analyzing Changes over Time 6

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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mean Valence between R&B and Rap songs using correct notation Please consider the new data design. d) Again, we will obtain a 90% confidence interval to make the hypothesis test decision by following these directions. ● ● ● ● In Rguroo, go to Analytics Analysis → Mean Inference → One & Two Populations. In the Dataset dropdown, select RBRapSample32. In the Variable 1 dropdown, select RBValence. Variable 2 dropdown, select Rap Valence. Under the Summary tab, check the box to the left of Paired Data. Next, select the fourth tab Population 1-2 and note that the Confidence Interval tab is selected. Change the Confidence level to 0.90. Then, select t-statistic under Method. Leave the Assumptions box on the right as is and click Preview. Provide either a screenshot or a copy of your confidence interval output table and state the confidence interval. e) Make a decision whether or not to reject the null hypothesis using the confiden interval by checking to see if the null value is captured by the confidence interval. State the decision and explanation in one sentence. f) Draw a conclusion about the claim using one or two sentences in context of the problem. g) Verify your decision by obtaining a test statistic and p-value in Rguroo. Follow the directions presented in part (d). Now, select the Test of Hypothesis tab. In this tab, change the significance level to 0.10 and update the alternative hypothesis. Select t- statistic under Method. Leave the Assumptions box on the right as is. Click Preview. Provide either a screenshot or a copy of your hypothesis test output table and verify your decision by comparing your p-value to the significance level in one complete sentence. h) Compare the values of the standard errors calculated in 3.1(c) and 3.2(d). Why do you believe these standard errors differ? Answer these questions in one or two sentences. i) Can we generalize these results to a larger group (i.e. a population)? Answer this question in one sentence and please provide a reason for your answer. j) Can we determine if a cause and effect relationship exists between the variables? Answer this question in one sentence and please provide a reason for your answer. Investigation 4: Analyzing Changes over Time
Transcribed Image Text:mean Valence between R&B and Rap songs using correct notation Please consider the new data design. d) Again, we will obtain a 90% confidence interval to make the hypothesis test decision by following these directions. ● ● ● ● In Rguroo, go to Analytics Analysis → Mean Inference → One & Two Populations. In the Dataset dropdown, select RBRapSample32. In the Variable 1 dropdown, select RBValence. Variable 2 dropdown, select Rap Valence. Under the Summary tab, check the box to the left of Paired Data. Next, select the fourth tab Population 1-2 and note that the Confidence Interval tab is selected. Change the Confidence level to 0.90. Then, select t-statistic under Method. Leave the Assumptions box on the right as is and click Preview. Provide either a screenshot or a copy of your confidence interval output table and state the confidence interval. e) Make a decision whether or not to reject the null hypothesis using the confiden interval by checking to see if the null value is captured by the confidence interval. State the decision and explanation in one sentence. f) Draw a conclusion about the claim using one or two sentences in context of the problem. g) Verify your decision by obtaining a test statistic and p-value in Rguroo. Follow the directions presented in part (d). Now, select the Test of Hypothesis tab. In this tab, change the significance level to 0.10 and update the alternative hypothesis. Select t- statistic under Method. Leave the Assumptions box on the right as is. Click Preview. Provide either a screenshot or a copy of your hypothesis test output table and verify your decision by comparing your p-value to the significance level in one complete sentence. h) Compare the values of the standard errors calculated in 3.1(c) and 3.2(d). Why do you believe these standard errors differ? Answer these questions in one or two sentences. i) Can we generalize these results to a larger group (i.e. a population)? Answer this question in one sentence and please provide a reason for your answer. j) Can we determine if a cause and effect relationship exists between the variables? Answer this question in one sentence and please provide a reason for your answer. Investigation 4: Analyzing Changes over Time
mal text d. Times ... 1 g. 90% Confidence interval Paired differences are used Variable [RBValence- RapValence] 2 90% Confidence interval Paired differences are used Variable Midpoint [RBValence- RapValence] 0.0857933 tv 12 + Midpoint f. A conclusion about the claim is that we will 0.0857933 B (.. 3 Std Error 0.0418758 Std Error I t-Based Confidence Interval 0.0418758 i. Confidence Interval is I e. You would not reject the null Hypothesis because it it what to the confidence interval because it is under .1 U DF DF t-Based Confidence Interval A 14 14 O Lower CL S ih C Lower CL 0.0120371 0.0120371 Upper CL 0.15955 Upper CL 0.15955 h. The values of the standard in 3.1 are, and the values of standard in 3.2 are i. We Can/cannot generalize the results to a larger group because j. Yes/No we can determine if a cause and effect relationship exists because... ZA Margin of Error 0.0737562 6 E = - Margin of Error 0.0737562
Transcribed Image Text:mal text d. Times ... 1 g. 90% Confidence interval Paired differences are used Variable [RBValence- RapValence] 2 90% Confidence interval Paired differences are used Variable Midpoint [RBValence- RapValence] 0.0857933 tv 12 + Midpoint f. A conclusion about the claim is that we will 0.0857933 B (.. 3 Std Error 0.0418758 Std Error I t-Based Confidence Interval 0.0418758 i. Confidence Interval is I e. You would not reject the null Hypothesis because it it what to the confidence interval because it is under .1 U DF DF t-Based Confidence Interval A 14 14 O Lower CL S ih C Lower CL 0.0120371 0.0120371 Upper CL 0.15955 Upper CL 0.15955 h. The values of the standard in 3.1 are, and the values of standard in 3.2 are i. We Can/cannot generalize the results to a larger group because j. Yes/No we can determine if a cause and effect relationship exists because... ZA Margin of Error 0.0737562 6 E = - Margin of Error 0.0737562
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