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An accounting firm wants to find out the performance of the audit team, in particular, whether the audits are completed early, on time, or late. Assume that the probabilities for early, on time, or late completion are equal. If two audits are taken at random, what is the probability that both audits are completed at the same time?
0.3333
0.5556
0.6666
cannot be determined
0. 4444
A coin with the probability of heads being 0.8 is tossed 4 tim
for a certain aptitude test it is known from past experience that the average score is 1000 and the standard deviation
it is decided to measure the resistance of sheets of a certain metal at temperatures x of 100k 200k 300k 400k and 500k.
question 1 nbspin switzerland an insurance agency retail life insurance called savings life insurance sli. the skill to
Identify at least three variables for which you could calculate a logistic regression. Describe the variables and their scale of measurement.
Find the area under the normal distribution curve between z = 1.52 and z = 2.43.
In the belief that Statistics is too hard, a student claims that the mean score on a final exam is less then 70. 15 scores will be chosen at random to test this claim.
Calculate the 95% confident interval to estimate the percentage of Millennial who believe that their generation has a distinctive identity as compared with the other generations
Use normal approximation to the binomial distribution to determine the answer if this probability cannot be determined explain why.
Assume the data have bell shaped distribution with a mean of 30 and a standard deviation of 5. Employ the empirical rule to determine the percentage of data within each of the following ranges: 20 to 40, 15 to 45, and 25 to 35.
Suppose that in a certain population of married couples 30% of the husbands smoke, 20% of the wives smoke, and in 8% of the couples both the husband and wife smoke. Is the smoking status (smoker or nonsmoker) of the husband independent of that of the..
Given that X1 is in the model, does X2 contribute to predicting the dependent variable at the .05 significance level?
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