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Each day, Monday through Saturday, a baker bakes three large chocolate cakes, and those not sold on the same day are given away to a food bank. Use the data shown in the following table to test at the 0.05 level of significance whether they may be looked upon as values of a binomial random variable:
What is meant by Econometrics , Regression analysis and Disturbance or error term?
Estimate the mean height to within 3cm with 95% confidence. Assume the population standard deviation is about 12cm. What sample size should she use?
Show that if a random variable has a uniform density with the parameters α and β, the probability that it will take on a value less than α + p(β - α) is equal to p.
Two friends are to meet at the library. Each independently and randomly selects an arrival time within the same one-hour period. Each agrees to wait a maximum of ten minutes for the other to arrive. What is the probability that they will meet?
what is the probability of selecting a sample mean of 7 or less , with a sample population of 9 and mean of 10 and a standard deviation of 3.
the mean and standard deviation on a calculus mid term are 66 and 19 points while they are 72 and 15 on the final. if a
(a) State the null and alternative hypothesis (b) Give test statistic and p-value (c) Do these data provide evidence that metal tagged penguins have a later mean arrival time, yes or no?
Assess the use of qualitative data to support business decision making. Consider different types of qualitative data collection and analysis methods and the ways in which they can support business decision making and strategies.
Determine the z values for 29 and 34 hours. What percent of the garages take between 32 hours and 34 hours to erect? What percent of the garages take between 29 hours and 34 hours to erect?
Indicate with a yes or no whether a particular type of reliability is affected by a particular source of error.
Compare and contrast how the psychologist as a detective (a researcher) solves a problem to how a non-researcher solves a problem.
2. Find a conditional probability. In the setting of the previous exercise, what is the conditional probability that a household is prosperous, given that it is educated? Explain why your result shows that events A and B are not independent.
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