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Question 6 1 pts Monthly spending on entertainment is recorded for different households and follows a Normal distribution with a mean of $243 with a
Question 6 1 pts Monthly spending on entertainment is recorded for different households and follows a Normal distribution with a mean of $243 with a standard deviation of $38. What is the value for monthly spending on entertainment above which 60% of observations would occur? Answer in dollars to the nearest cent (two decimal places]. Question 7 1.5 pts Students completing internships can book meetings of different lengths {either 30 minutes, 60 minutes, or 90 minutes} with their supervisor. 65% of the students book 30-minute meeting, 30% book 60-minute meetings, and 5% book 90-minute meetings. What is the expected length of time {in minutes) for one meeting? Answer to two decimal places as needed. Expected length of one meeting = minutes What is the standard deviation (in minutes) for the distribution of meeting times? Answer to two decimal places as needed. SD for the distribution of meeting times = mins Question 8 1 pts Hannah is planning to collect data to estimate the proportion of Vancouver residents who intend to regularly use the new Broadway subwayfskytrain when it opens. A preliminary study found that 8% of Vancouver residents intend to regularly use the new Broadway subwayfskytrain when it opens. She would like to collect enough data to construct a 99.9% condence interval with a margin of error of at most 2%. What is the minimum sample size she should collect? Answer as a whole number
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