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Part 1 Fill in the missing values in the contingency table. Round your expected frequencies to two or more decimal places, and round your three or more decimal places. Send data to Excel Software use On a regular basis Not on a regular basis Total Under 18 129 0 0 174 0 303 18-35 (a) Determine the type of test statistic to use. Type of test statistic: (Choose one) 133 126.00 0.389 182 189.00 0.259 315 Age (in years) 36-54 31 0 0 65 0 0 96 55+ Find the value of the test statistic. (Round to two or more decimal places.) 0 107 114.40 0.479 179 171.60 0.319 286 Total 400 600 1000 (c) Find the critical value for a test at the 0.05 level of significance. (Round to two or more decimal places.) 0 X Part 2 Answer the following to summarize the test of the hypothesis that there is no dependence between age and software use. For your test, use the 0.05 level of significance. (d) Can we reject the hypothesis that there is no dependence between age and software use? Use the 0.05 level of significance. O Yes O No G (Jo-1z)² JE values to X 5

Part 1 Fill in the missing values in the contingency table. Round your expected frequencies to two or more decimal places, and round your three or more decimal places. Send data to Excel Software use On a regular basis Not on a regular basis Total Under 18 129 0 0 174 0 303 18-35 (a) Determine the type of test statistic to use. Type of test statistic: (Choose one) 133 126.00 0.389 182 189.00 0.259 315 Age (in years) 36-54 31 0 0 65 0 0 96 55+ Find the value of the test statistic. (Round to two or more decimal places.) 0 107 114.40 0.479 179 171.60 0.319 286 Total 400 600 1000 (c) Find the critical value for a test at the 0.05 level of significance. (Round to two or more decimal places.) 0 X Part 2 Answer the following to summarize the test of the hypothesis that there is no dependence between age and software use. For your test, use the 0.05 level of significance. (d) Can we reject the hypothesis that there is no dependence between age and software use? Use the 0.05 level of significance. O Yes O No G (Jo-1z)² JE values to X 5

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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target audience

To determine a target audience for a new software package, a computer company surveyed a large random sample of potential customers, asking each whether he/she uses a previous version of the software on a regular basis. (The company considered "a regular basis to be at least three times a week.) The data, as summarized in the contingency table below, were classified according to two variables: the age of the respondent ("under 18", "18-35", "36-54", "55+") and software use ("on a regular basis" or "not on a regular basis"). Each cell of the table contains three numbers: the first number is the observed cell frequency (); the second number is the expected cell frequency (f) under the assumption that there is no dependence between age and software use and the third number is the following value. 2 (Jo-JE) JE The numbers labeled "Total" are totals for observed frequency. Part 1 Fill in the missing values in the contingency table. Round your expected frequencies to two or more decimal places, and round your three or more decimal places. Send data to Excel Software use (Observed cell frequency - Expected cell frequency)2 Expected cell frequency On a regular basis Not on a regular basis Total Yes Under 18 129 0 0 174 303 (a) Determine the type of test statistic to use. Type of test statistic: (Choose one) 18-35 133 126.00 0.389 182 189.00 0.259 315 No Age (in years) 36-54 31 0 0 65 0 0 96 (b) Find the value of the test statistic. (Round to two or more decimal places.) 55+ 107 114.40 0.479 179 171.60 0.319 286 Total 400 600 1000 (c) Find the critical value for a test at the 0.05 level of significance. (Round to two or more decimal places.) 0 Part 2 Answer the following to summarize the test of the hypothesis that there is no dependence between age and software use. For your test, use the 0.05 level of significance. (d) Can we reject the hypothesis that there is no dependence between age and software use? Use the 0.05 level of significance. X (Jo-JE)² JE G values to X Españo B K
Transcribed Image Text:To determine a target audience for a new software package, a computer company surveyed a large random sample of potential customers, asking each whether he/she uses a previous version of the software on a regular basis. (The company considered "a regular basis to be at least three times a week.) The data, as summarized in the contingency table below, were classified according to two variables: the age of the respondent ("under 18", "18-35", "36-54", "55+") and software use ("on a regular basis" or "not on a regular basis"). Each cell of the table contains three numbers: the first number is the observed cell frequency (); the second number is the expected cell frequency (f) under the assumption that there is no dependence between age and software use and the third number is the following value. 2 (Jo-JE) JE The numbers labeled "Total" are totals for observed frequency. Part 1 Fill in the missing values in the contingency table. Round your expected frequencies to two or more decimal places, and round your three or more decimal places. Send data to Excel Software use (Observed cell frequency - Expected cell frequency)2 Expected cell frequency On a regular basis Not on a regular basis Total Yes Under 18 129 0 0 174 303 (a) Determine the type of test statistic to use. Type of test statistic: (Choose one) 18-35 133 126.00 0.389 182 189.00 0.259 315 No Age (in years) 36-54 31 0 0 65 0 0 96 (b) Find the value of the test statistic. (Round to two or more decimal places.) 55+ 107 114.40 0.479 179 171.60 0.319 286 Total 400 600 1000 (c) Find the critical value for a test at the 0.05 level of significance. (Round to two or more decimal places.) 0 Part 2 Answer the following to summarize the test of the hypothesis that there is no dependence between age and software use. For your test, use the 0.05 level of significance. (d) Can we reject the hypothesis that there is no dependence between age and software use? Use the 0.05 level of significance. X (Jo-JE)² JE G values to X Españo B K
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