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The survival times (in months) for two treatments for patients with severe chronic leftventricular heart failure are given in the following tables.
a. Construct separate relative frequency histograms for the survival times of both thetherapies.
b. Compare the two histograms. Does the new therapy appear to generate a longer survival time? Explain your answer.
you have been asked by corporate to analyze some company-wide data from an annual customer satisfaction survey where
Could you please explain in words how you figure out deciles, quartiles, kurtosis, skewness in Excel? How do you find the sum count, largest, and smallest in Excel?
Harry's hamberger is a restaurant where customers form a single line for 1 cashier. The average numbers of arrivals is 1 per minute and the Poison distribution accurately defines this rate.
While exploring data that was collected for an investigation of resources needed for software testing and improvement, you have found an outlier.
List 4 variables that you might assess in a research project related to your research area. List one for each type of measurement scale: Nominal, ordinal, interval, and ratio
Often the more relevant analysis is about estimating the size of the effect. Calculate a 90% confidence interval for the population mean difference and summarise your findings
toss five fair coins and let x equal the number of heads observeda. identify the sample points associated with this
in some states the law requires drivers to turn on their headlights when driving in the rain. a highway patrol officer
Summarize the blog entry that you have read. Next, explain the manner in which Nate Silver's analysis in your chosen blog entry addresses the salient points of one particular topic related to this class.
An experiment consists of selecting a card at random from a 52-card deck. Refer to this experiment and find the probability of the event.
Perform the check regarding the sample size that confirms the sampling distribution of the possible values for will be approximately normally distributed.
suppose the conditional distribution of y given x x is gamma with ? 4 and ? 1x and the marginal distribution of x is
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