Problem__1

# Problem__1 - Problem#1 The manager of a store wants to...

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Unformatted text preview: Problem #1 The manager of a store wants to decide what kind of hand- knitted sweaters to sell. The manager is considering three kinds of sweaters: Irish, Peruvian, and Shetland. The decision will depend on the results of an analysis of which kind of sweater, if any, lasts the longest before wearing out. The manager has some data collected from various customers who in the past bought different sweaters and reported how many years their sweaters lasted before wearing out. There are 20 observations on Irish sweaters, 18 on Peruvian sweaters, and 21 on Shetland sweaters. The data are assumed to be independent random samples from the three populations of sweaters. The manager hires a statistician, who carries out an ANOVA and finds SSE 2 1,240 and SSTR = 740. Construct a complete ANOVA table, and determine whether there is evidence to conclude that the three kinds of sweaters do not have equal average durability. ...
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