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Question: Business and Management The largest aboveground storage tanks in Bayonne, New Jersey, have the capacity to hold 6,000,000 gallons of oil. For safety reasons, managers prefer the mean amount stored at any given time to be no greater than 4,500,000 gallons. A random sample of nine large tanks was selected, and the amount of oil stored in each (in gallons) was recorded. The summary statistics were x ¯= 4,675,250 and s = 482,556.
a. Is there any evidence to suggest the mean amount of oil stored in the large tanks is above the safety level? Assume normality and use a = 0.025. b. Find bounds on the p value associated with this hypothesis test.
Mmean number of outgoing calls in a random selection of calls? Also, compute the standard deviation. In a selection of 12 calls, what is the probability that less than 3 were outgoing?
Below are five (5) separate distributions. a. Calculate the Range b. Use the range to calculate the standard deviation c. Calculate the standard deviation (and show any difference)
Suppose we want to conduct a poll to estimate the proportion of voters who approve of the current mayor, and we plan to use a 95% confidence interval for our estimate.
A sociologist assembles a dataset consisting of the poverty rate, per capita income, serious crime rate, and teen birth rate for the 50 states.
Analysis of data sets assignment
What was the New Right a.k.a modern conservatism and explain its rise from the 1960's to the election of Ronald Reagan in the 1980's?
[T] [F] A reduction in the depletion region width means that the diode has been reversed biased. 2. [T] [F] To forward bias a diode, a positive potential must be supplied to the n-type region of the diode.
Compute the coefficient of correlation and the coefficient of determination and determine the regression equation.
Interpret the slope.
Plot Kaplan-Meier Survival curve estimates along with true survival curve for n=25,100,1000
Develop an estimated regression equation with the amount of television advertising as the independent variable. Test for a significant relationship between television advertising and weekly gross revenue at the0.05level of significance
Find the value for the correlation coefficient r.
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