The main salary offered to students who are graduating from coastal state university this year is...
The mean salary offered to students who are graduating from Coastal State University this year is $24,215, with a standard deviation of $3643. A random sample of 80 Coastal State students graduating this year has been selected. What is the probability that the mean salary offer for these 80 students is $24.250 or more? Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places. OX
The mean salary offered to students who are graduating from Coastal State University this year is $ 24,260 , with a standard deviation of $ 3643 . A random sample of 80 Coastal State students graduating this year has been selected. What is the probability that the mean salary offer for these 80 students is $ 24,500 or less? Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places.
The mean salary offered to students who are graduating from Coastal State University this year is $24,245 , with a standard deviation of $3643 . A random sample of 85 Coastal State students graduating this year has been selected. What is the probability that the mean salary offer for these 85 students is $24,000 or more? Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places.
Central limit theorem: Sample mean The mean salary offered to students who are graduating from Coastal State University this year is $24.260, with a standard deviation of $3712. A random sample of 75 Coastal State students graduating this year has been selected. What is the probability that the mean salary offer for these 75 students is $25,000 or more? Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places. ?
A report states that the mean yearly salary offer for students graduating with a degree in accounting is $48,743. Suppose that a random sample of 50 accounting graduates at a large university who received job offers resulted in a mean offer of $49,870 and a standard deviation of $3800. Do the sample data provide strong support for the claim that the mean salary offer for accounting graduates of this university is higher than the national average of $48,743? Test the...
A report states that the mean yearly salary offer for students graduating with a degree in accounting is $48,752. Suppose that a random sample of 50 accounting graduates at a large university who received job offers resulted in a mean offer of $49,890 and a standard deviation of $3300. Do the sample data provide strong support for the claim that the mean salary offer for accounting graduates of this university is higher than the national average of $48,752? Test the...
In a random sample of 250 students at a university, 207 stated that they were nonsmokers. Based on this sample, compute a 90% confidence interval for the proportion of all students at the university who are nonsmokers. Then complete the table below. Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places. = What is the lower limit of the 90% confidence interval? What is the upper limit of the 90% confidence interval?...
he health center of a small, private university requires students to have appointments for visits. Each appointment takes an average of 5.7 minutes with a standard deviation of 3.7 minutes. The health center makes 100 appointments each day and is scheduled to be open for 10 hours. What is the probability that the total time spent for 100 students who have appointments for tomorrow will exceed 10 hours? (Hint: 10 hours =600 minutes.) Carry your intermediate computations to at least...
A state university wants to increase its retention rate of 4% for graduating students from the previous year. After implementing several new programs during the last two years, the university reevaluated its retention rate using a random sample of 352 students and found the retention rate at 5%. Find the minimum sample size such that the desired type one error is 0.01 and type two error is 0.01 when the true retention rate is 4.5%.
Students at a major university in Southern California are complaining about a serious housing crunch. Many of the university's students, they complain, have to commute too far to school because there is not enough housing near campus. The university officials' response is to perform a study. The study, reported in the school newspaper, contains the following histogram summarizing the commute distances for a sample of 60 students at the university: Frequency 30+ 10 10 4 8 12 Commute distance (in...