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There are 52 cards in a standard deck.
a) What is the probability that the first card dealt is a spade?
b) What is the probability that the first card dealt is an ace of spade?
c) What is the probability that the first two cards dealt yields "Black Jack"?
Compute Pearson's correlation coefficient between age and amount spent on this particular product.
A newspaper reports have 58 percent of farmers are planning to plant genetically modified crops presesnt year. The article adds that the poll is based on a random sample.
Illustrate what can we say about the probability distribution. Is it approximately normal, elucidate the mean and standard deviation.
Perform a posthoc test that is suitable if we assume that group 7 is a control group and that the other are different treatment groups and that we are only interested in finding significant treatments, not to compare them.
Soft Drinks a vending machine automatically pours soft drinks into cups. As the amount of soft drink dispensed into a cup is normally distributed
In which category is ANOVA properly classified?
Show the graph of the probability density function for flight time.
Set-up/solve the problem graphically. (How many ceiling fans and how many floor fans should be made?)
A human factors psychologist studied three computer keyboard designs.
Determine a random number generator and make simulated data for not more than 25 participants (test subjects) in study using ranges of values for variables you established above.
Complete the table and answer the following questions. Use the .05 significance level.
You listen to radio station for 1 hour, at arbitrarily selected time, and carefully observe that amount of advertising time is equal to 7 minutes. Compute z-score for this amount of advertising time.
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