Statistical Test Question
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(10 marks 2+2+2+1+3) Two methods of...
Problem 3. (30pts) Two methods for teaching reading were applied to two randomly selected groups ...
Problem 3. (30pts) Two methods for teaching reading were applied to two randomly selected groups of elementary school children and then compared on the basis of a reading comprehension test given at the end of the learning period. The sample means and variances computed from the test scores are shown in the accompanying table. Method I Number of children in group11 64 52 Method II 14 69 71 Do the data present sufficient evidence to indicate a difference in the...
this new method. You are being asked to use your newfound statistical abilities with the testing....
this new method. You are being asked to use your newfound statistical abilities with the testing. 1. To accomplish the test for consistency, they each grade the same test for a sample of students and record the information in the table given below. Using the .10 significance level, is there a difference in the variation (variance) in grading techniques for these two professors? Prof. Swarup 52 67 56 45 Prof. Pikachu 59 60 61 51 56 63 57 65 70...
Test: Exam#2 Out Submit Test isti This Question: 1 pt 9 of 19 (13 complete) This...
Test: Exam#2 Out Submit Test isti This Question: 1 pt 9 of 19 (13 complete) This Test 19 pls p E Question Help Use technology to help you test the claim about the population mean, u, at the given level of normally distributed. Claim: μ > 11 70: α:0.07; σ 203 39. Sample statistics: x. 1194 38, n-250 Identify the null and alternative hypotheses. Choose the correct answer below O A. Ho:H> 1194.38 Ha Hs 119438 O B. Hous!19438 Ha...
A study of reading comprehension in children compared three methods of instruction. The three methods of...
A study of reading comprehension in children compared three methods of instruction. The three methods of instruction are called Basal, DRTA, and Strategies. Basal is the traditional method of teaching, while DRTA and Strategies are two innovative methods based on similar theoretical considerations. The READING data set includes three response variables (posttests) that the new methods were designed to improve. Analyze The Posttest 2 score using ANOVA. a. What is the response variable? Method of instruction Traditional teaching method Innovative...
Question 1 (1 point) ✓ Saved (Quesitons 1-5 are in one hypothesis testing using Teaching Methodology...
Question 1 (1 point) ✓ Saved (Quesitons 1-5 are in one hypothesis testing using Teaching Methodology data). Click the data file name to download the data A teacher of statistics wants to know if a new teaching methodology that includes IT is efficient in terms of increased average score. He took a class with old methodology and a class with new methodology for samples and gave a same test. Open the file by clicking the file name above. Once you...
Question 2 (1 point) (Quesitons 1-5 are in one hypothesis problem using Teaching Methodology data). A...
Question 2 (1 point) (Quesitons 1-5 are in one hypothesis problem using Teaching Methodology data). A teacher of statistics wants to know if a new teaching methodology that includes IT is efficient in terms of increased average score. He took a class with old methodology and a class with new methodology for samples and gave a same test. Once you opened the file in question 1 and ran Excel, you need not open it again. Just use the Excel output...
Question 2 (1 point) (Quesitons 1-5 are in one hypothesis problem using Teaching Methodology data) A...
Question 2 (1 point) (Quesitons 1-5 are in one hypothesis problem using Teaching Methodology data) A teacher of statistics wants to know if a new teaching methodology that includes IT is efficient in terms of increased average score. He took a class with old methodology and a class with new methodology for samples and gave a same test. Once you opened the file in question 1 and ran Excel, you need not open it again. Just use the Excel output...
step 1 - set of hypotheses step 2 - significance level step 3 - test statistic...
step 1 - set of hypotheses
step 2 - significance level
step 3 - test statistic and distribution (including degrees of
freedom)
step 4 - rejection region (in words)
step 5 - statistical conclusion
step 6 - managerial conclusion
A toy manufacturer has developed a new toy and now wants to know if the toy should be positioned in the marketplace as a toy for boys or for girls. In order to answer this research question, one of your colleagues...
Use SPSS for this exam, be sure to include all the following information to get full credits: (1) null and alternative hypotheses (15%) (2) nameofthe test(15%, explain why you chose it) (3) th...
Use SPSS for this exam, be sure to include all the following information to get full credits: (1) null and alternative hypotheses (15%) (2) nameofthe test(15%, explain why you chose it) (3) thetest statistic and its degree offreedom or ANOVAtable(if applicable) (30%! (4) p-value (15%), and (5) scientific conclusion (25%, using 0.05 significance). 1. Ostriches live in hot environments, and they are normally exposed to the sun for long periods Mammals in similar environments have special mechanisms for reducing the...
Question 8 3 pts The p-value for a Hypothesis Test of a mean or proportion O All the answers are correct Is based on th...
Question 8 3 pts The p-value for a Hypothesis Test of a mean or proportion O All the answers are correct Is based on the probability of the test statistic on out in the relevant tail(s) of the distribution Is twice as large if it is a two-tailed test O is compared with alpha to make a conclusion in a hypothesis test Question 11 3 pts For this problem it would be helpful to have a standard normal table. What...
Problem 3. (30pts) Two methods for teaching reading were applied to two randomly selected groups of elementary school children and then compared on the basis of a reading comprehension test given at the end of the learning period. The sample means and variances computed from the test scores are shown in the accompanying table. Method I Number of children in group11 64 52 Method II 14 69 71 Do the data present sufficient evidence to indicate a difference in the...
this new method. You are being asked to use your newfound statistical abilities with the testing. 1. To accomplish the test for consistency, they each grade the same test for a sample of students and record the information in the table given below. Using the .10 significance level, is there a difference in the variation (variance) in grading techniques for these two professors? Prof. Swarup 52 67 56 45 Prof. Pikachu 59 60 61 51 56 63 57 65 70...
Test: Exam#2 Out Submit Test isti This Question: 1 pt 9 of 19 (13 complete) This Test 19 pls p E Question Help Use technology to help you test the claim about the population mean, u, at the given level of normally distributed. Claim: μ > 11 70: α:0.07; σ 203 39. Sample statistics: x. 1194 38, n-250 Identify the null and alternative hypotheses. Choose the correct answer below O A. Ho:H> 1194.38 Ha Hs 119438 O B. Hous!19438 Ha...
Question 1 (1 point) ✓ Saved (Quesitons 1-5 are in one hypothesis testing using Teaching Methodology data). Click the data file name to download the data A teacher of statistics wants to know if a new teaching methodology that includes IT is efficient in terms of increased average score. He took a class with old methodology and a class with new methodology for samples and gave a same test. Open the file by clicking the file name above. Once you...
Question 2 (1 point) (Quesitons 1-5 are in one hypothesis problem using Teaching Methodology data). A teacher of statistics wants to know if a new teaching methodology that includes IT is efficient in terms of increased average score. He took a class with old methodology and a class with new methodology for samples and gave a same test. Once you opened the file in question 1 and ran Excel, you need not open it again. Just use the Excel output...
Question 2 (1 point) (Quesitons 1-5 are in one hypothesis problem using Teaching Methodology data) A teacher of statistics wants to know if a new teaching methodology that includes IT is efficient in terms of increased average score. He took a class with old methodology and a class with new methodology for samples and gave a same test. Once you opened the file in question 1 and ran Excel, you need not open it again. Just use the Excel output...
step 1 - set of hypotheses
step 2 - significance level
step 3 - test statistic and distribution (including degrees of
freedom)
step 4 - rejection region (in words)
step 5 - statistical conclusion
step 6 - managerial conclusion
A toy manufacturer has developed a new toy and now wants to know if the toy should be positioned in the marketplace as a toy for boys or for girls. In order to answer this research question, one of your colleagues...
Use SPSS for this exam, be sure to include all the following information to get full credits: (1) null and alternative hypotheses (15%) (2) nameofthe test(15%, explain why you chose it) (3) thetest statistic and its degree offreedom or ANOVAtable(if applicable) (30%! (4) p-value (15%), and (5) scientific conclusion (25%, using 0.05 significance). 1. Ostriches live in hot environments, and they are normally exposed to the sun for long periods Mammals in similar environments have special mechanisms for reducing the...
Question 8 3 pts The p-value for a Hypothesis Test of a mean or proportion O All the answers are correct Is based on the probability of the test statistic on out in the relevant tail(s) of the distribution Is twice as large if it is a two-tailed test O is compared with alpha to make a conclusion in a hypothesis test Question 11 3 pts For this problem it would be helpful to have a standard normal table. What...
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