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Determine the minimum required sample size if you want to be 99% confident that the sample mean is within 2 units of the population mean given sigma = 7.8. Assume the population is normally distributed.
The relationship of free energy change to the concentrations of reactants and products is important because it predicts the direction of spontaneous chemical reactions.
Zigs Industries had the following operating results for 2011: sales = $27,960; cost of goods sold = $19,360; depreciation expense = $4,940; interest expense = $2,190; dividends paid = $1,050.
Express the volume of this region as a single triple integral in rectangular coordinates and Express this integral in terms of one or more integrals in the order dz dx dy.
What would be the correct null and alternative hypothesis for the following situation: The sample has a mean of 72.3 mph and a standard deviation of 7.4 mph. Use a 0.05 significance level to test the claim that the mean speed of all cars is greate..
In order that the sample proportion and the population proportion not differ by more than 0.05 with 95% level of confidence, what sample size should be used?
What are the different phospholipases that act to hydrolyze the ester linkages of the groups attached to the various carbon atoms of glycerol? At which carbon atom of glycerol are you most likely to have arachidonate bound?
Discuss whether or not Neo forma fits into one of these theories better than the other, or can both be invoked when trying to understand this industry.
The manager of a department store wants to determine what proportion of people who enter the store use the store's credit cards for their purchases.
Prepare a 2011 balance sheet for Cornell Corp. based on the following information: cash = $136,000; patents and copyrights = $630,000; accounts payable = $215,000;
A study is conducted to determine if the traffic light patterns at a busy intersection need to be adjusted to help the flow of traffic. Data on the volume of traffic and the traffic patterns during different times of day are recorded.
Calculate power of test if researcher uses a sample of n = 16 individuals.
What is the probability she received 5 or more email during the same period?
What is the probability of a false negative test (the probability that a person having muscular distrophy tests negative)?
The average score on math portion of SAT was 516 in 2002. Assume that the math score of all students taking the SAT 2002 were normally distributed with a mean of 516 and a standard deviation of 90.
A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each location. Research question: At α = . 05, does vehicle type vary by mall location?
What is the difference between dependent and independent samples? Discuss differences is statistical treatment, statistical power, and data management.
A random sample of 15 paired observations has a correlation of -.46. Can we conclude that the correlation in the population is less than zero? Use the .05 significance level.
Finding the probability of each event in a group of events of different possibility
Given what you've learned in this module about the meaning of "statistics", choose one of the examples from Part I (A-F), and raise a relevant question of your own that could be answered by a statistician.
What is the probability that a randomly selected automobile manufactured by the company will have a defective microprocessor?
How many units of capacity should be built to minimize the total cost of providing capacity plus lost sales?
Calculate the mean, median and mode for both sets and do graph/histogram to chart the results and conclude if indeed one set of year had more the other as far a snowfall.
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