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You have to determine that your cutoff value at level a = 0.05 is 1.645 when testing whether the mean of a population is significantly different from 1.5. If you calculate a test statistic of 1.8 what is the proper conclusion?
A) you do not reject Ho.
b) You would need to calculate the p-value to determine significance
C) You would need to calculate the confidence interval to determine significance.
D) you reject Ho.
Describe the factors that might cause variation in weight of Tootsie Rolls during manufacture.
Is this an ideal data collection method? Can the results be considered reliable? Can the gathered data be representative of the population?
Based on this sample information, develop a 90 percent confidence interval for the population mean yearly premium.
A survey conducted by the American Automobile Association showed that the family of four spends an average of $215.60 per day while on vacation. Suppose a sample of 64 families of four vacationing at Niagara Falls results in a sample mean of $252...
The gambler is paid later as follows, depending on the number of winners he picked. What is his expected gain? Remember, a loss is a negative gain, and that the bookie keeps the gambler's $20.
A population of scores has p = 44. In this population, an X value of 40 corresponds to z = - 0.50. What is the population standard deviation.
Probability values based on normal distribution - old exit exam followed a normal distribution
Suppose that you are the director of table game operations at a large casino, known especially for its poker room. You are interested in determining the average number of hands the casino should expect per hour during peak hours in the poker room.
Use drinking as an excuse for outrageous behavior. including public nudity and dancing on tables. Find the standard error of this estimate. and interpret.
Suppose the people have weights that are normally distributed with a mean of 164lb and a standard deviation of 30lb. Find the probability?
What is the null and alternative hypothesis? What is your final conclusion?
Write the hypothesis statement. What distribution are you using?
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