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a.) Approximately 70% of statistics students do their homework in time for it to be collected and graded. Each student does homework independently. In a statistics class of 50 students, what is the probability that 40 will do their homework on time? Students are selected randomly.
b.) What is the probability that at most 40 will do their homework on time?
c.) What is the probability that more than 40 will do their homework on time?
d. What is the probababilty the at least 40 will do their homework on time?
The mean salary of the nine employees of a small business is $52,000 per year. One employee, whose salary was $68,000, was red. Two new employees, who will each be paid a salary of $40,000, are hired. What is the new mean annual salary of the emp..
What hypotheses should be tested, in terms of p, the true proportion of students who have missed a test because they overslept, in order for college officials.
What was the total sample size used?- Is the overall ANOVA statistically significant?- Interpret the results of the further analysis. Explain.
Translate the following arguments into symbolic form.- If high-tech products are exported to Russia, then domestic industries will benefit.
two percent .02 of the items produced by a machine are defective. a random sample of 60 items is selected and checked
The MBA department is concerned that dual degree students may be receiving lower grades than the regular MBA students. Two independent random samples have been selected.
Prove that if a sequence Zt, Z2. " , converges to a constant b in the quadratic mean, then the sequence also converges to b in probability.
Paying high prices? A retailer entered into an exclusive agreement with a supplier who guaranteed to provide all products at competitive prices.
The sample mean and the standard deviation were determined to be 120 and 40 respectively. The standard error of the mean is?
Can you compare two populations by looking at box plots or stem-and-leaf displays of random samples from the two populations? Explain.
a researcher placed male rodents in the presence and absence of a conspecific male. cortisol a stress hormone levels
b. Assuming that the Si are independent normal random variables, state the likelihood function and obtain the maximum likelihood estimators of ß1 and ß2. Are these the same as the least squares estimators?
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