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Math 240 2y Section 8.1 - MAT 240: Applied S X ookmom/zyboowsuHuMAuwMasmn/chaptec/s/secuonn 7.,.f:-f55:71:75: H ' ' my > MAT 240: Applied Statistics home > E

Math 240

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2y Section 8.1 - MAT 240: Applied S X ookmom/zyboowsuHuMAuwMasmn/chaptec/s/secuonn "7.,.f:-"f""55:71:75: \"H ' ' my > MAT 240: Applied Statistics home > E mothesis tests for the difference between two population means ' zyBooks catalog l A company that develops an automated customer service model is interested in knowing whether two versions, Version A and Version 8, will get different ratings from customers. Participants in a focus group are taken through samples from both versions, then take a survey to rate each version. A summary of the data obtained from the study is given below. Assume ratings from the different surveys generally have the same standard deviation Vida-A WI Mum ' mm w W B 15 Human-Hm M11 Win-um u at 14 4.015 - v $29....\" one: 1' = 'EX31234 ' minim m maxim moss "3mm 4:" cam-law m 4 4 l o l i 3 t = E8:1.234 . t = , n = Ex:9 Degrees of freedomzdf = ,' _ 77 W Point estimate for Version A: E1 = Ex; 1.234 Point estimate for Version B: E; =

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