Mathematics, 29.03.2021 23:00 lloveshan219
According to Franchise Business Review, over 50% of all food franchises earn a profit of less than $50,000 a year. In a sample of 142 casual dining restaurants, 81 earned a profit of less than $50,000 last year.
1) What is the point estimate of the proportion of casual dining restaurants that earned a profit of less than $50,000 last year?
2) Determine the margin of error and provide a 95% confidence interval for the proportion of casual dining restaurants that earned a profit of less than $50,000 last year.
3) How large a sample is needed if the desired margin of error is .03?
Answers: 2
Mathematics, 21.06.2019 14:20, goopatogen5889
Micah solves a linear equation and concludes that x = 0 is the solution. his work is shown below. (1 – 3x) = 4(– + 2) 0 = x which statement is true about micah’s solution?
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Mathematics, 21.06.2019 20:00, faithyholcomb
Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a. the median of max’s data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
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