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If you are using the method of least squares for fitting trends in an annual time series containing 25 consecutive yearly values,
(a) what coded value do you assign to X for the first year in the series?
(b) what coded value do you assign to X for the fifth year in the series?
(c) what coded value do you assign to X for the most recent recorded year in the series?
(d) what coded value do you assign to X if you want to project the trend and make a forecast five years beyond the last observed value?
The data follow. Males Females 27 25 25 29 19 18 10 23 16 20 22 15 14 19 (a) What statistical test should be used to analyze these data?
Identify three discrete variables that appear in your current or future career. How do those variables affect your workplace, your product, or your personnel? How would changes in those variables affect these things?
The Absent Minded Professor study was a RCT, which had an objective to estimate the protective effect of drug "No-Reminder" compared to drug "Reminder" on risk of "Forgetful syndrome". The study found that the drug "No-Reminder" was protective.
Change the last number in that set from 36 to 14 and recalculate the confidence interval. Using the results, describe the effect of an outlier or extreme value on the confidence interval.
what is the probability that at least 8 of the words on the test are words that the student knows?
Assume that you go to the drive through window at Wendy's and place an order. Two friends of yours independently place orders at the drive through window at the same Wendy's.
Describe what type of control chart you can use and how do you calculate the control limits (provide formula) to check if the calculate the control limits in this organization is in control.
A raffle offers a first prize of $1000 2 second prizes of $300 and 20 third prizes of $10 each. If 15000 tickets are sold at 75 cents each, find the expected winnings (IN CENTS) for a person buying one ticket?
Can you please give one example of a Qualitative data and one example of a Quantitative Data that you face daily? Please explain why it is a Quantitative or Qualitative data and describe the scale of measurement.
"If you took 40 employees at random from the corporation, there is a pretty good chance the average number of days absent would be 12 or more. That's what happened to us - chance variation." Is this a good defense? Justify your answer.
Which are likely to be independent events? For those you think are not, suggest reasons why.
Ryan is planning to finance her college education by selling programs at the football games for her team. there is a fixed cost of $400 for printing these programs, and the variable cost is $3.
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