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In a survey of 750 senior business executives by Business Week magazine, 56% indicated that they felt that even if merit and abilities are equal, people with MBAs often get promoted faster than people without the degree. Prepare a 92% confidence interval estimate for the population proportion.
Each student in an experiment was told to look at 100 cars and count the number of people wearing the seat belts. The mean score for the class was found to be 44, and standard deviation =7
What are the values for the Mean Square Treatment (MST) and the Mean Square Error (MSE)? Compute the value of F. Do you Reject or Fail to Reject the Null Hypothesis? State you conclusion.
The mean score of a college entrance test is 500, the standard deviation is 75 and the scores are normally distributed.
Let n = 269 represent the number of ticket reservations. Let r represent the number of people with reservations who show up for the flight. What expression represents the probability that a seat will be available for everyone who shows up holding ..
Programmers have monthly incomes of less than $2,834, what is the value of the standard deviation of the monthly earnings of the computer programmers?
A bowl contains 20 chips, of which 9 are red, 8 are white and 3 are blue. Six chips are taken at random and without replacement. Find the probability that each of the 6 chips is red.
A part of our research design is the data collection process. We often do this by sampling. Differentiate between random and nonrandom sampling methods.
Find the empirical probability that an iris bulb of this type will bloom. Give answer as a fraction in lowest terms. How many of the bulbs should she plant next fall if she would like at least 52 to bloom?
State the null and alternative hypothesis. population standard deviation is $2500 and level of test is 0.05 what is the critical value?
the dividend yield on shareholders funds of australias top 120 companies for the week ended friday 10 july 2009 is
What will be critical value of chi-square if test is to be performed at 0.025 level? At the 0.05 level?
Found the sample mean to be 7.8 with a standard deviation of 1.8. Can you infer that in fact students watch less than 7 hours per week?
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