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Amount of beer in the bottle is normally distributed with a mean of 11.7 ounces, and standard deviation of 0.40 ounces. The independent research firm takes sample of 16 bottles and determine value of the sample mean which it fails to report. If probability of getting sample mean x less than unreported sample mean is 0.025, determine value of the unreported sample mean?
Do 1-sample t-test to see if people in Chicago have travelled to fewer states than people nationwide. Utilize the 10% (.10) level of significance.
A communication network transmits binary digits, 0 to 1, where each digit is transmitted 10 times in succession. During each transmission, there is a 0.995 probability of accurate transmission.
A research firm wants to compare the miles per gallon of unleaded regular, mid-grade, and super grades of gasoline. They drive the same car under approximately similar driving conditions and changing out the type of gasoline used.
Please identify a research question that can be addressed with a hypothesis test. An example might be to identify the presence of bacteria in a batch of milk.
During normal business hours on the east coast, calls to the toll-free reservation number of the Nite Time Inn that the numb roy calls per minute can be described by the Poisson distribution.
Using a spreadsheet, create a table that shows the relationship among the units of heights of people in centimeters, inches and feet in the range of 150cm to 2m. Use increments of 5cm.
A voltmeter is used to measure a known voltage of 100 V. Forty percent of the readings are within 0.5 V of the true value. Estimate the standard deviation for the meter.
Farmers know that driving heavy equipment on wet soil compresses the soil and injures future crops. Here are data on the "penetrability" of the same type of soil at 2 levels of compression.
A sales manager wants to know if the sales productivity of her east region is greater than the sales productivity of her west region
Apply the EOQ model to the following quantity discount situation in which D=500 units per year, C0=$40, and the annual holding cost rate is 20%. What order quantity do you recommend?
What is the probability that more than 25% of the business travelers say that the reason for their most recent business trip was an internal company visit?
Write a hypothesis that you might test to compare two or more samples in your example. Indicate which hypothesis test you would use and the samples you would select.
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