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A sports reporter wishes to establish the mean satisfaction level (on a scale from 0 to 10) to within a margin of error of 0.5. If it is known from previous studies that the standard deviation in the level of fan satisfaction is 2.7, what sample size will be needed to achieve the desired precision with 80% confidence? Standard Normal Distribution Table 0 Round up to the next whole number A sports reporter wishes to establish the mean satisfaction level (on a scale from 0 to 10) to within a margin of error of 0.5. If it is known from previous studies that the standard deviation in the level of fan satisfaction is 2.7, what sample size will be needed to achieve the desired precision with 80% confidence? Standard Normal Distribution Table 0 Round up to the next whole number An e-marketing consultant is hired to determine how long customers spend, on average, on a company's website. If the standard deviation is known from previous studies to be approximately 5.4 minutes, determine the number of customers that needs to be sampled in order to determine the mean length of time spent on the company's website, accurate to within a margin of error of 0.9 minutes, at the 5% level of significance. Standard Normal Distribution Table Number of Customers = 0 Round up to the next whole number