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* QuestiorI CompletiUIT Status! 1D 40 50 70 80 100 11D 120 13 140 150 16 17 18 19 20 21 220 23 24 25 QUESTION 23 For 6 months we worked with a group of 15 severely mentally handicapped individuals in an attempt to teach them self-care through imitation. For a second 6- month period, we used physically guided practice with the same individuals. For each 6-month session, we collected ratings on the level of required assistance (high = bad) for each person. The data for each individual follows (on the next page). Was the assistance significantly reduced in the second 6-month period? (use alpha=0.05) Subject # 4 6. 8. 9. 10 11 12 13 14 15 Imitation 14 11 19 8. 4 9. 12 14 17 18 8. 6. 10 13 15 3 6. 9. 16 10 13 6. Physical guidance Given your the obtained statistic that you calculated, if you were conducting a hypothesis test on this scenario, what would Step 4 and 5 look like? Since tobt = -2.23 tcrit = -1.761 then we would fail to reject the Null and conclude that the amount of assistance needed with physical guidance was not %3D significantly less than the amount needed with intimidation. Since tobt = -2.23 < tcrit = -1.761 then we would reject the Null and conclude that the amount of assistance needed with physical guidance was significantly less %3D than the amount needed with intimidation. O Since Zobt = -28 < Zcrit= -1.645 then we would reject the Null and conclude that the amount of assistance needed with physical guidance was significantly less than the amount needed with intimidation. QUESTION 24 Calculate r4 for the above hypothesis test example. Provide your answer rounded to two decimal places. Save All Answers Click Save and Submit to save and submit. Click Save All Answers to save all answers.

* QuestiorI CompletiUIT Status! 1D 40 50 70 80 100 11D 120 13 140 150 16 17 18 19 20 21 220 23 24 25 QUESTION 23 For 6 months we worked with a group of 15 severely mentally handicapped individuals in an attempt to teach them self-care through imitation. For a second 6- month period, we used physically guided practice with the same individuals. For each 6-month session, we collected ratings on the level of required assistance (high = bad) for each person. The data for each individual follows (on the next page). Was the assistance significantly reduced in the second 6-month period? (use alpha=0.05) Subject # 4 6. 8. 9. 10 11 12 13 14 15 Imitation 14 11 19 8. 4 9. 12 14 17 18 8. 6. 10 13 15 3 6. 9. 16 10 13 6. Physical guidance Given your the obtained statistic that you calculated, if you were conducting a hypothesis test on this scenario, what would Step 4 and 5 look like? Since tobt = -2.23 tcrit = -1.761 then we would fail to reject the Null and conclude that the amount of assistance needed with physical guidance was not %3D significantly less than the amount needed with intimidation. Since tobt = -2.23 < tcrit = -1.761 then we would reject the Null and conclude that the amount of assistance needed with physical guidance was significantly less %3D than the amount needed with intimidation. O Since Zobt = -28 < Zcrit= -1.645 then we would reject the Null and conclude that the amount of assistance needed with physical guidance was significantly less than the amount needed with intimidation. QUESTION 24 Calculate r4 for the above hypothesis test example. Provide your answer rounded to two decimal places. Save All Answers Click Save and Submit to save and submit. Click Save All Answers to save all answers.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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* QuestiorI CompletiUIT Status! 1D 40 50 70 80 100 11D 120 13 140 150 16 17 18 19 20 21 220 23 24 25 QUESTION 23 For 6 months we worked with a group of 15 severely mentally handicapped individuals in an attempt to teach them self-care through imitation. For a second 6- month period, we used physically guided practice with the same individuals. For each 6-month session, we collected ratings on the level of required assistance (high = bad) for each person. The data for each individual follows (on the next page). Was the assistance significantly reduced in the second 6-month period? (use alpha=0.05) Subject # 4 6. 8. 9. 10 11 12 13 14 15 Imitation 14 11 19 8. 4 9. 12 14 17 18 8. 6. 10 13 15 3 6. 9. 16 10 13 6. Physical guidance Given your the obtained statistic that you calculated, if you were conducting a hypothesis test on this scenario, what would Step 4 and 5 look like? Since tobt = -2.23 <tcrit = +1.761 then we would reject the Null and conclude that the amount of assistance needed with physical guidance was significantly less than the amount needed with intimidation. Since tobt = 2.23 > tcrit = -1.761 then we would fail to reject the Null and conclude that the amount of assistance needed with physical guidance was not %3D significantly less than the amount needed with intimidation. Since tobt = -2.23 < tcrit = -1.761 then we would reject the Null and conclude that the amount of assistance needed with physical guidance was significantly less %3D than the amount needed with intimidation. O Since Zobt = -28 < Zcrit= -1.645 then we would reject the Null and conclude that the amount of assistance needed with physical guidance was significantly less than the amount needed with intimidation. QUESTION 24 Calculate r4 for the above hypothesis test example. Provide your answer rounded to two decimal places. Save All Answers Click Save and Submit to save and submit. Click Save All Answers to save all answers.
Transcribed Image Text:* QuestiorI CompletiUIT Status! 1D 40 50 70 80 100 11D 120 13 140 150 16 17 18 19 20 21 220 23 24 25 QUESTION 23 For 6 months we worked with a group of 15 severely mentally handicapped individuals in an attempt to teach them self-care through imitation. For a second 6- month period, we used physically guided practice with the same individuals. For each 6-month session, we collected ratings on the level of required assistance (high = bad) for each person. The data for each individual follows (on the next page). Was the assistance significantly reduced in the second 6-month period? (use alpha=0.05) Subject # 4 6. 8. 9. 10 11 12 13 14 15 Imitation 14 11 19 8. 4 9. 12 14 17 18 8. 6. 10 13 15 3 6. 9. 16 10 13 6. Physical guidance Given your the obtained statistic that you calculated, if you were conducting a hypothesis test on this scenario, what would Step 4 and 5 look like? Since tobt = -2.23 <tcrit = +1.761 then we would reject the Null and conclude that the amount of assistance needed with physical guidance was significantly less than the amount needed with intimidation. Since tobt = 2.23 > tcrit = -1.761 then we would fail to reject the Null and conclude that the amount of assistance needed with physical guidance was not %3D significantly less than the amount needed with intimidation. Since tobt = -2.23 < tcrit = -1.761 then we would reject the Null and conclude that the amount of assistance needed with physical guidance was significantly less %3D than the amount needed with intimidation. O Since Zobt = -28 < Zcrit= -1.645 then we would reject the Null and conclude that the amount of assistance needed with physical guidance was significantly less than the amount needed with intimidation. QUESTION 24 Calculate r4 for the above hypothesis test example. Provide your answer rounded to two decimal places. Save All Answers Click Save and Submit to save and submit. Click Save All Answers to save all answers.
Expert Solution
Step 1

Solution:

23.

The given data is

Statistics homework question answer, step 1, image 1

State the hypotheses.

Null hypothesis:

Statistics homework question answer, step 1, image 2

That is, the amount of assistance needed with physical guidance was not significantly less than the amount needed with intimidation.

Alternative hypothesis:

Statistics homework question answer, step 1, image 3

That is, the amount of assistance needed with physical guidance was significantly less than the amount needed with intimidation.

Dependent t-test is used when two samples are dependent and to test the difference between population means.

Here, the subjects are used for the imitation and physical guidance. Then, paired-t test should be used to test the hypothesis.

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