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A soda bottling machine is filling 32 oz. soda cans. We observe the machine filling 35 bottles (picked at random) and obtain the following data:
32.12 32.04 32.04 32 32.01 32.12 32.0532.13 32.05 32.05 31.72 32.08 32.03 31.9532.02 32.22 32.22 32.22 31.89 32.2 32.2231.73 31.95 31.95 32.07 32.13 32.13 31.7331.98 32.21 32.21 31.97 32.09 31.97 32.12
As a bottler we want to know if the machine was underfilling. Setup Null and Alternate hypotheses to test if average amount of soda in each can is less than 32 oz. Test the hypothesis using a = 0.05. What can you conclude from all this?
Your task is to interview a representative sample of attendees for the large concert venue where you work. The new season includes 200 live concerts featuring all types of musicians and musical groups.
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At the 5% level of significance, test whether the proportion of internet users paying bills online is now more than 50%.
The post-anesthesia care area (recovery room) at St. Luke's Hospital in Maumee, Ohio, was recently enlarged. The hope was that with the enlargement the mean number of patients per day would be more than 25. A random sample of 15 days revealed the ..
What is the probability of winning if the rules are changed so that in addition to selecting the correct five numbers, you must now select them in the same order they are drawn?
If light bulbs have lives that are normally distributed with a mean of 2500 hours and a standard deviation of 500 hours, what percentage of light bulbs have a life less than 2500 hours?
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