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 $70000. Suppose you take a simple random sample of 89 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 89 recent graduates have an annual salary exceeding $70000. Beyond representative sampling, what assumptions are needed to satisfy the requirements for this problem? OX - normal or n > 30 OX - binomial and both np and ng at least 5 OX - binomial and at least 5 successes and failures OX - normal and n > 30 Submit Question

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