Business Weekly conducted a survey of recent graduates from the top MBA programs. On the basis of the survey, assume that 65% of the recent graduates annual salary exceeds $75000. Suppose you take a simple random sample of 92 recent graduates. Note: round all z scores to 2 decimal places and all other numbers to 4 decimal places. Find the probability that more than 55% of the 92 recent graduates have an annual salary exceeding $75000. Beyond representative sampling, what assumptions are needed to satisfy the requirements for this problem? X∼normal or n≥30 X∼binomial and both np and nqat least 5 X∼normal and n≥30 X∼binomial and at least 5 successes and failures
Business Weekly conducted a survey of recent graduates from the top MBA programs. On the basis of the survey, assume that 65% of the recent graduates annual salary exceeds $75000. Suppose you take a simple random sample of 92 recent graduates. Note: round all z scores to 2 decimal places and all other numbers to 4 decimal places. Find the probability that more than 55% of the 92 recent graduates have an annual salary exceeding $75000. Beyond representative sampling, what assumptions are needed to satisfy the requirements for this problem? X∼normal or n≥30 X∼binomial and both np and nqat least 5 X∼normal and n≥30 X∼binomial and at least 5 successes and failures
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Business Weekly conducted a survey of recent graduates from the top MBA programs. On the basis of the survey, assume that 65% of the recent graduates annual salary exceeds $75000. Suppose you take a simple random sample of 92 recent graduates.
Note: round all z scores to 2 decimal places and all other numbers to 4 decimal places.
Find the probability that more than 55% of the 92 recent graduates have an annual salary exceeding $75000.
Beyond representative sampling, what assumptions are needed to satisfy the requirements for this problem?
Note: round all z scores to 2 decimal places and all other numbers to 4 decimal places.
Find the probability that more than 55% of the 92 recent graduates have an annual salary exceeding $75000.
Beyond representative sampling, what assumptions are needed to satisfy the requirements for this problem?
- X∼normal or n≥30
- X∼binomial and both np and nqat least 5
- X∼normal and n≥30
- X∼binomial and at least 5 successes and failures
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