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Within each of your current careers/ jobs, there are sets of data that can be analyzed. For example, a teacher can use a set of test scores, a dietician can analyze a set of patient weights and correlate them to incidences of diabetes, and a salesperson can look at their clients' previous buying behavior to focus marketing. Your job this week is to think of a set of data that is important to to your current work environment (and a student can count as a work environment). Your data set should be useful and should include have at least 20 numbers in the set. With that set, perform the following operations:
* find the mean, median, mode, and range
* find the variance, standard deviation and margin of error
* construct a 95% and 99% confidence interval
* analyze your statistics to see what types of conclusions you can draw
In what sense is this business problem? A societal problem? An individual problem?
Where does the p-value come from for the spatial scan statistic used in SaTScan? How Monte Carlo simulation is used to derive a p-value for a cluster ?
Criterion of realism or Hurwitz. Assume that the payoff from an investment depends on market conditions. Illustrate what is the criterion of realism value.
Determine the most economical monthly shipping schedule. Provide a table showing the routes and total costs.
Determine whether the description corresponds to an observational study or an experiment. Thirty university students are divided into two groups, one group receives free tutoring in mathematics, the other does not.
In the study of age and systolic blood pressure of five randomly selected subjects, a researcher reported the following data.
Use suitable one or two sided test for null hypothesis of no difference in them then changes rating between groups at 0.10 significance level.
If W denotes the total number of spaces one moves under these special conditions, find the mean and standard deviation of W.
An experiment consists of making 80 telephone calls in order to sell a particular insurance policy.
Find the value of sample covariance in linear regression model
A haulage contractor has two loads to deliver to separate customers. He has 4 trailers of which 2 are new. If the trailers are randomly chosen for any particular delivery: (a) In how many ways can the trailers be allocated the deliveries?
State the hypotheses for a right-tailed test.
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