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Alex sells "Exciting World of Statistics" videos over the phone to earn some extra cash during the economic crsis. Only 10% of calls result in a sale. Assume that the outcome of each call is independent of the other.
What is the probability that Alex makes his second sale on an odd-numbered call?
1.assuming the population is large which sample size will give the smallest standard deviation to the statistic?a.n
Personal phone calls received by a new employee was 3,5, and 6. assume that samples of size 2 are randomly selected with replacement from this population of three values. Find the mean of the distribution.
A drama fan has taped 9 episodes (on nine different videotapes)of a drama. however, he only has time to watch four episodes. suppose he selects four tapes at random. How many different ordered arrangements of episodes are possible?
Clearly a straight line model does not accurately describe what is going on with this data. Does this mean there is no relationship between income and time?
Suppose we randomly select two students from a mathematics class and asked whether the student selected each time is a member of a math-club or not. Write all the outcomes for this experiment. Draw the Venn and Tree diagrams for this experiment.
suppose 40 of the vehicles passing through a toll booth are trucks and the rest are cars.a truck pays a 5 toll whereas
If 1 man aged 18-24 is arbitrarily chosen, determine the probability that his serum cholesterol level is between 165 and 200.
Using an example from a hospital, create a mock data set for two specific variables of importance within hospital (minimum of 20). The data may be used for quality measures, patient inputs, demographics, financial data, etc.
Among the variables high school percentile, ACT English score, ACT math score, and ACT composite score, identify the one that appears to be the best predictor of cumulative GPA. Explain your reasoning.
How do we go about interpreting the results of various types of statistical tests in health care research?
In the bank customer waiting time case, a bank manager had developed a new system to reduce the time customers spend waiting to be served by tellers during peak business hours.
What is the probability that it will be handled by Adam? If it turns out that the problem was solved, what is the probability that it was handled by Adam?
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