A marketing manager wishes to compare the variance of the prices charged for 2 brands of...

A marketing manager wishes to compare the variance of the prices charged for 2 brands of CD players. The manager conducts a random survey of retail outlets and obtains independent random samples of prices. The ten retail outlets at which prices for the onkyo CD player are obtained have a standard deviation of$8. The 13 retail outlets at which prices for the jvc CD player are obtained have a standard deviation of $17. Is there enough evidence at 5% significance level to conclude that the variability for the onkyo cr player is different from the jvc CD player? What type of hypothesis is this? What is the value of the test of statistics? What’s is the critical value? The conclusion? Is there sufficient or insufficient evidence?

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orchestra answered 2 years ago

A marketing research firm wishes to compare the prices charged by two supermarket chains—Miller’s and Albert’s....

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