2) Packages of ground beef in a family size tray are intended to hold 3 pounds of meat. A random sample of 39 packages produced weight measurements with an average of 3.04 pounds and a standard deviation of 0.14 pounds. Use a = 0.05. a) If you were the quality control manager and wanted to make sure that the average amount of ground beef was indeed three pounds, what null hypothesis and alternate hypothesis would you test? b) What is the test statistic and critical value? c) What conclusion can you draw?

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2) Packages of ground beef in a family size tray are intended to hold 3 pounds of meat. A
random sample of 39 packages produced weight measurements with an average of 3.04
pounds and a standard deviation of 0.14 pounds. Use a = 0.05.
a) If you were the quality control manager and wanted to make sure that the average amount
of ground beef was indeed three pounds, what null hypothesis and alternate hypothesis
would you test?
H:
H₁:
b) What is the test statistic and critical value?
c) What conclusion can you draw?
Transcribed Image Text:2) Packages of ground beef in a family size tray are intended to hold 3 pounds of meat. A random sample of 39 packages produced weight measurements with an average of 3.04 pounds and a standard deviation of 0.14 pounds. Use a = 0.05. a) If you were the quality control manager and wanted to make sure that the average amount of ground beef was indeed three pounds, what null hypothesis and alternate hypothesis would you test? H: H₁: b) What is the test statistic and critical value? c) What conclusion can you draw?
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