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An advertising firm has decided to ask 110 customers at each of four local shopping malls if they are willing to take part in a market research survey. At a = 0.01 is there evidence to show that the proportions are not all the same. Willing Willing Not Willing 42 What are the expected numbers? (round to 3 decimal places) B Not Willing A 68 A B 73 37 C 67 43 C D 75 35 D

An advertising firm has decided to ask 110 customers at each of four local shopping malls if they are willing to take part in a market research survey. At a = 0.01 is there evidence to show that the proportions are not all the same. Willing Willing Not Willing 42 What are the expected numbers? (round to 3 decimal places) B Not Willing A 68 A B 73 37 C 67 43 C D 75 35 D

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.3: Special Probability Density Functions
Problem 23E
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An advertising firm has decided to ask 110 customers at each of four local shopping malls if they are willing to take part in a market research survey. At a = 0.01 is there evidence to show that the proportions are not all the same. Willing Willing Not Willing What are the expected numbers? (round to 3 decimal places) B = The test value is: A 68 42 A Not Willing The hypotheses are Ho: PA PB = Pc = PD HA: At least one of the proportions is different. (claim) Since a = 0.01 the critical value is 11.345 The p-value is B 73 37 с C 67 43 (round to 3 decimal places) (round to 3 decimal places) D 75 35 D
Transcribed Image Text:An advertising firm has decided to ask 110 customers at each of four local shopping malls if they are willing to take part in a market research survey. At a = 0.01 is there evidence to show that the proportions are not all the same. Willing Willing Not Willing What are the expected numbers? (round to 3 decimal places) B = The test value is: A 68 42 A Not Willing The hypotheses are Ho: PA PB = Pc = PD HA: At least one of the proportions is different. (claim) Since a = 0.01 the critical value is 11.345 The p-value is B 73 37 с C 67 43 (round to 3 decimal places) (round to 3 decimal places) D 75 35 D
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