A Manufacturer Of Detergent Claims That The Contents Of Boxes Sold Weigh On Average At Least 12 Ounces The Distribution 1 (117.28 KiB) Viewed 24 times
A Manufacturer Of Detergent Claims That The Contents Of Boxes Sold Weigh On Average At Least 12 Ounces The Distribution 2 (192.81 KiB) Viewed 24 times
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 0.4 ounces. A random sample of 25 boxes yielded a sample mean weight of 11.93 ounces. Test at the 5% significance level the null hypothesis that the population mean weight is at least 12 ounces. What are the null and alternative hypotheses for this test? ΟΑ. Ηο: μ2 12 H, μ< 12 O C. Ho us 12 HP> 12 OB. Ho p= 12 H: #12 O D. Ho H= 12 He: p= 11.93 For this test at the significance level a with sample mean x, hypothesized mean Ho, population standard deviation o, sample size n, and Zg or Za/2, what is the form of the decision rule? メールの O A. Reject H, if >Za olva X-Ho OB. Reject H, if X-HO ->2012 olvñ.-20/2 or reject H, if olin
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 0.4 ounces. A random sample of 25 boxes yielded a sample mean weight of 11.93 ounces. Test at the 5% significance level the null hypothesis that the population mean weight is at least 12 ounces. E. "U oldn U12 oldn 12 O C. Reject H, if X-HO .<-Za oldn Determine the appropriate value(s) of - Za: Za or +2a/2 (Round to three decimal places as needed. Use a comma to separate answers as needed.) Calculate the decision statistic. s X-to (Type an integer or a decimal.) oldn se State the conclusion of this test. the null hypothesis. There significant evidence that the population mean weight is not at least 12 ounces. दा
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!