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A researcher would like to determine whether an over-the-counter cold medication has an effect on mental alertness. A sample of n = 16 participants is obtained and each person is given a standard dose of the medication one hour before being tested in a driving simulation task. for the general population reaction time scores on the simulation task are normally distributed with the population mean = 210 and alpha = 20. The individuals in the sample had an average score of M = 222. Can the research conclude that the medication has a significant effect on mental alertness as measured by the driving simulation task? Use a two tailed test with alpha = 0.05. Compute Cohen's d to measure the size of the effect.
Currently have to wait on line before the technician is able to answer their call. What is the average waiting time in the queue (in hours) before the technician answers a cus
The odds in favor of an event are the number of successes divided by the number of failures. The probability of this event occurring is the number of successes divided by th
If the contract does not carry the secondary guarantee of part (a), what is the minimum premium that the policyholder will have to pay at time 20 to ensure that the cost of
It is estimated that 26% of all California adults are college graduates and that 31 % of California adults are regular internet users. It is also estimated that 20% of Calif
A man is on trial accused of murder in the first degree. The prosecutor presents evidence that he hopes will convince the jury to reject the hypothesis that the man is innoc
I did a study correlating net profit per location with expenditures on an in-house promotion, and got a correlation of about .15, and that was received very well.
The American black bear (Ursus americanus) is one of eight bear species in the world. It is the smallest North American bear and the most common bear species on the planet.
Explaining if the author justifies his conclusion; and (4)discussing the merits of the paper to the real world. You should then prepare a maximum of 10 page paper about these
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