1 answer

Please, determine the appropriate value(s) of -Za, Za, +- Z(a/2) and round to two decimal places...

Question:

A manufacturer of detergent claims that the contents of boxes sold weigh on average at least 12 ounces. The distribution of w

Please, determine the appropriate value(s) of -Za, Za, +- Z(a/2) and round to two decimal places as needed.

A manufacturer of detergent claims that the contents of boxes sold weigh on average at least 12 ounces. The distribution of weight is known to be normal, with a standard deviation of 0.5 ounces. A random sample of 16 boxes yielded a sample mean weight of 11.23 ounces. Test at the 1% significance level the null hypothesis that the population mean weight is at least 12 ounces HGH-12 H : μ-11.23 D. H, μ>12 For this test at the significance level α with sample mean x, hypothesized mean μο, population standard deviation ơ, sample size n, and Zu orza/2, what is the form of the decision rule? yA. Reject Ho if <-zo σ/ Reject Ho if<- Z/2 or reject Ho ifF> OC. Reject Ho /n Determine the appropriate value(s) of -Za, Za or tza/2 (Round to two decimal places as needed. Use a comma to separate answers as needed.)

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