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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?
Use a 0.05 significance level to test the claim that king-size cigarettes with filters have a lower mean amount of nicotine than the mean amount of nicotine in non-filtered king-size cigarettes.
Descriptive statistic results from quarterly sales figures over a 18 year period (73 qtr) are below. Please interpret the standard Deviation and Median in terms of sales results,
Employ a four period moving average and determine the forecasted demand for August. Put your answer in the form xx.x with no additional numbers or symbols.
Any person who is familiar with these trees understand the height of a California redwood tree which is related to another characteristics of the tree.
In forestry there appears to be a correlation between the diameter of a tree at breast height and the totol height of the tree. For the following sample of ten white spruces first construct a scatter plot then find the correlation (r) between heig..
Using one mean Z test to test whether or not to support the claim - Is there evidence that the average hours is below 6? Describe.
When we carry out a chi-square test of independence, the expected frequencies are based upon the Null hypothesis - true or false.
Open data file on your excel file AirlinePassengers . Point to the level of data (nominal, ordinal, ratio, or interval) measurement for each variable in data set. Notice tab for description gives information about data.
Construct a 95% confidence interval for the average amount its credit card customers spent on their first visit to the chain's new store in the mall assuming that the amount spent follows a normal distribution.
Using bar charts to compare observed frequencies between variables can be problematic when?
One of the major measures of the quality of service provided by any organization is the speed with which responds to customer complaints. A large family-held department store selling furniture and flooring, including carpet, had undergone a major ..
What is the probability of drawing one or more aces after discarding 5, 7, 8, and 9
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