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Solve the following confidence interval and interpret your results. Explain how you arrived at your result. Use Excel to show work if necessary. Of the 2,000 accounting students surveyed, 1,900 use Microsoft Excel spreadsheets for their assignments compared to other spreadsheets. Complete a 95% confidence Interval that shows that the accounting students use for Microsoft Excel?OR I'm curious as to the number of days below zero defrees F can be expected per year in Minnesota. Using the daily low temperaturs as reported by the Minneapolis-St. Paul airport, the mean number of days the temp fell below zero in the last 10 years was 17 days with a standard deviation of 9.201449. In an effort to determine if the mean number of days below zero is less in the last decade than it is for the last century, construct 95% confidence interval for the mean number of days below zero for the last 100 years.
A business operates with 9 locations. Each year, each location is allotted an overtime budget based on the previous years' activity. The total overtime budget for all 9 locations is $10 million.
A job placement director claims that the average starting salary for nurses is $24,000. A sample of 35 nurses has a mean of $23,450 and a standard deviation of $400.
Address additional types of quantitative research recommendation to enhance the validity and reliability of the research findings.
There is a statistical deception here. Explain what is deceptive about the bar graph.
A personal computer manufacturer is interested in comparing assembly times for two keyboard assembly processes. Assembly times can vary considerably from worker to worker, and the company decides to eliminate this effect by selecting a random samp..
At a certain pizza parlor, 45% of the customer's order a pizza containing onions, 38% of the customer's order a pizza containing sausage, and 79% order a pizza containing onions or sausage
The output of the source is transmitted via a channel that has probability of error (turning a 1 into 0 and 0 into 1) equal to 0.2. what is the probability that a 1 is observed?
Find the probability that the number of who consider themselves basketball fans is :
The Ohio Department of Agriculture tested 203 fuel samples across the state in 1999 for accuracy of the reported octane level. For premium grade, 14 out of 105 samples failed
A company uses triple time estimates to determine expected completion time for all of their projects. If they determined the expected time to complete a project is 25 weeks with a variance of of 9 weeks
The length of the thorax (where the wings and legs attach) in a population of male fruit flies is approximately Normal with a mean 0.800 (mm) and standard deviation 0.078 mm. What proportion of flies have thorax length 0.9 mm or longer?
In a bumper test, three types of autos were deliberately crashed into a barrier at 5 mph, and the resulting damage (in dollars) was estimated. Five test vehicles of each type were crashed, with the results shown below. Research question: Are the ..
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