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Column Fe and (Fo - fe) ^2/fe is incorrect

Column Fe and (Fo - fe) ^2/fe is incorrect

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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Column Fe and (Fo - fe) ^2/fe is incorrect
Banner Mattress and Furniture Company wishes to study the number of credit applications received per day for the last 300 days. The sample information is reported below. Frequency (Number of Days) Number of Credit Applications 50 1 77 2. 81 3. 48 31 5 or more 13 picture Click here for the Excel Data File To interpret, there were 50 days on which no credit applications were received, 77 days on which only one application was received, and so on. Would it be reasonable to conclude that the population distribution is Poisson with a mean of 2.0? Use the 0.05 significance level. Hint To find the expected frequencies use the Poisson distribution with a mean of 2.0. Find the probability of exactly one success given a Poisson distribution with a mean of 2.0. Multiply this probability by 300 to find the expected frequency for the number of days in which there was exactly one application. Determine the expected frequency for the other days in a similar manner. Họ: Distribution with Poisson with u= 2. H: Distribution is not Poisson with u=2
Transcribed Image Text:Banner Mattress and Furniture Company wishes to study the number of credit applications received per day for the last 300 days. The sample information is reported below. Frequency (Number of Days) Number of Credit Applications 50 1 77 2. 81 3. 48 31 5 or more 13 picture Click here for the Excel Data File To interpret, there were 50 days on which no credit applications were received, 77 days on which only one application was received, and so on. Would it be reasonable to conclude that the population distribution is Poisson with a mean of 2.0? Use the 0.05 significance level. Hint To find the expected frequencies use the Poisson distribution with a mean of 2.0. Find the probability of exactly one success given a Poisson distribution with a mean of 2.0. Multiply this probability by 300 to find the expected frequency for the number of days in which there was exactly one application. Determine the expected frequency for the other days in a similar manner. Họ: Distribution with Poisson with u= 2. H: Distribution is not Poisson with u=2
b. Compute the value of chi-square. (Round f, to 2 decimal places. Round (f, - fo2if, to 4 decimal places. Round x to 4 decimal places.) Applications fe 50 0.00 0.0000 1 77 729.00 14.5800 nces 81 961.00 19.2200 3 48 4.00 0.0800 4 31 361.00 7.2200 1,369.00 27.3800 13 300 5 or more Total 68.4800
Transcribed Image Text:b. Compute the value of chi-square. (Round f, to 2 decimal places. Round (f, - fo2if, to 4 decimal places. Round x to 4 decimal places.) Applications fe 50 0.00 0.0000 1 77 729.00 14.5800 nces 81 961.00 19.2200 3 48 4.00 0.0800 4 31 361.00 7.2200 1,369.00 27.3800 13 300 5 or more Total 68.4800
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