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A classical experiment in extrasensory perception (ESP) consists of asking a subject to tell, without looking, the suit of each card in a deck of Zener cards. There are five suits in the deck so the probability of a chance match between the guess and the card is 1/5 or .20. If only chance is operating, you would expect a subject to get 20 matches in 100 guesses (.20 X 100 =20). The standard deviation for this mean of 20 is 4.
What is the probability of a subject making 23 or more matches in 100 guesses?
What is the probability of 27 or more matches in 100 guesses?
Suppose a friend of a friend claimed to have ESP and agreed to sit just on time and guess at 100 cards. Suppose she made 36 matches. Calculate the probability of this many, or more, matches if only chance is at work, and carefully write a conclusion.
A contingency table has 5 rows and 4 columns. How many degrees of freedom are there?
Random sample of round-trip discount fares on this route last month gives: At .01 significance level can we conclude that mean fare has increased? Determine the p-value?
You're not sure if you should buy a stock and need to discover the probability of the stock having a positive return (based on one year).
Describe a scenario related to the final project in which you would use repeated-measures ANOVA. Describe a scenario related to the final project in which you would use MANOVA.
Is the Euro fair? Soon after the Euro was introduced as currency in Europe, it was widely reported that someone had spun a Euro coin 250 times and gotten heads 140 times. We wish to test a hypothesis about the fairness of spinning the coin.
A survey of 600 non-fatal accidents showed that 251 involved the use of a cell phone. Find a point estimate for p, the population proportion of accidents that involved the use of a cell phone.
What type of solution do you get for a quadratic equation where D
Find the product of the vector of state probabilities for the preceding period and the matrix of transition probabilities.
Use a test of the difference between proportions when answering these questions.
Your financial advisor sees this and tells you there is a 100% chance XYZ stock will gain over the 2-month period. Would you continue to use this financial advisor? Explain.
A random sample of 400 college students was selected and 120 of them had at least one motor vehicle accident in the previous two years.
Nancy believes that the average running time of movies is equal to 140 minutes. A sample of 4 movies was taken and the following running times were obtained. Assume the population of the running times is normally distributed.
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