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A researcher believes that women today weigh less than in previous years. To investigate this belief, she randomly samples 41 adult women and records their weights. The scores have a mean of 111 lbs. and a standard deviation of 12.4. A local census taken several years ago shows the mean weight of adult women was 115 lbs.
What do you conclude, using the appropriate inference test and a = 0.011 tail?
accept H1
accept H0
reject H0
retain H0
accept H1 and reject H0
You might find the probabilities using the Table or software of your choice. Please explain how you obtained your results.
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