Do h, i, j part of the question only thanks In a Stroop test, participants are presented with a list of color words, witheach word displayed in an ink color. The participant's task is to say out loud the ink colorin which the word is printed. The task has two conditions: a congruent words condition,and an incongruent words condition. In the congruent condition, the color of the wordmatches the spelling of the printed word; but in the incongruent condition, the colorof the word does not match the spelling of the printed word. Each participant usuallyparticipates in both conditions. I have uploaded a Stroop test dataset of 24 participantsthe file name being stroopdata.csv. The dataset showsthe time (in seconds) it took for each participant to complete the task in each condition.In this question, you will need to conduct the appropriate t-test for this dataset.(a) Before doing the hypotheses testing, let's first compute some descriptive statis-tics and visualize the data using graphs. What are the sample means and samplestandard deviation for each of the conditions? Use hist() function to graph thefrequency distribution for the sample data in each condition. Which condition gen-erally took the participants longer to complete? Attach the graphs and R. code.(b) Which one is a more appropriate test for this data set, paired sample t-test orindependent-samples t-test? Explain.(c) State the null and alternative hypotheses. Assume that we are doing a directionaltest.(d) Compute the t-statistic for our sample data. Show work. Attach R code if used.(e) Over repeated samples, which distribution does the t-statistic follow assuming Hois true? (Hint: include the degrees of freedom).(f) Compute the p-value. Show work and attach R code.(g) How do you interpret the p-value?(h) Suppose a = 0.05. Can you reject the null? What is your conclusion?(i) Using the same a level, compute the upper critical t-value. What is the uppercritical t-value? Based on the upper critical t-value, can you reject the null? AttachR code.(j) Use t.test function conduct the t-test. Do you obtain the same p-value? Attachthe code. Congruent Incongruent12.07916.7919.5648.63014.66912.23814.6928.9879.40114.48022.32815.29815.07316.92918.20012.13018.49510.63911.34412.36912.94414.23319.71016.00419.27818.74121.21415.68722.80320.87824.57217.39420.76226.28224.52418.64417.51020.33035.25522.15825.13920.42917.42534.28823.89417.96022.05821.157

From previous subparts, the value of the test statistic is: t=-6.5323 The degrees of freedom is…

(h) Suppose a = 0.05. Can you reject the null? What is your conclusion? (i) Using the same a level, compute the upper critical t-value. What is the upper critical t-value? Based on the upper critical t-value, can you reject the null? Attach R code. (j) Use t.test function conduct the t-test. Do you obtain the same p-value? Attach the code.

(h) Suppose a = 0.05. Can you reject the null? What is your conclusion? (i) Using the same a level, compute the upper critical t-value. What is the upper critical t-value? Based on the upper critical t-value, can you reject the null? Attach R code. (j) Use t.test function conduct the t-test. Do you obtain the same p-value? Attach the code.

Algebra: Structure And Method, Book 1

(REV)00th Edition

ISBN:9780395977224

Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Chapter2: Working With Real Numbers

Section2.3: Rules For Addition

Problem 7P

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