According to the bureau of statistic, the average waste produced per restaurant per day are 3,58 kg. Suppose the daily amount of waste generated per restaurant is normally distributed with standard deviation 1,04 kg.
c. How much waste a restaurant could produce per day if the probability is 41,2%
According to the bureau of statistic, the average waste produced per restaurant per day are 3,58...
4. According to the Bureau of Labor Statistics, the average weekly pay for a U.S. production worker was $441.84. Assume that available data indicate that production worker wages were normally distributed with a standard deviation of $90. What is the probability that a worker earned between $400 and $500? (Round to four decimal places) How much did a production worker have to earn to be in the top 20% of wage earners? (Round to two decimal places) For a randomly...
Ayrshire cows produce an average of 57 pounds of milk per day with a standard deviation of 6 pounds. Assume the daily production is normally distributed. 20 cows are randomly selected from a herd and their day’s milk production is weighed. Let ȳ be the mean pounds of milk for this sample. a. Find the mean and standard deviation for the sampling distribution of ȳ. b. Use normalcdf with the sample mean ȳ to determine the probability that the mean...
The manager of a popular seafood restaurant estimates that the daily consumption of shrimp is normally distributed with a mean of 15 pounds and a standard deviation of 2.7 pounds. He makes it a point to buy the right amount of shrimp every day to prevent waste and shortage. Calculate the amount of shrimp that should be bought daily so that it meets demand 92% of the days. 10.6 12.4 O 17.5 18.8 O 19.4 The probability of winning a...
Suppose that a rabbit produces, on average, 30 grams of poop per day, with a standard deviation of 6. Also, suppose that we have 38 rabbits, pooping independently. Approximate the probability that the rabbits produce over 1 kilogram of poop in a single day.
According to the 2010 US Census, the average number of residents per housing unit for the n=87 counties in Minnesota was 2.10, and the standard deviation was 0.38. Test whether the true mean number of residents per housing unit in Minnesota in 2010 is less than the national value of 2.34 at the level α = 0.05. a. Show all five steps of this test. b. What type of error could we be making in this context? c. What is...
In a random sample of 16 residents of New York, the mean waste recycled per person was 3 pounds per day with a standard deviation of 1 pound per day. Assume the population is normally distributed. a) What is the standard error of the mean? b) What is the point estimate for the mean waste recycled per person per day in New York? c) What is the margin of error, E, for a 95% confidence interval about the population mean?...
The average hourly wage of workers at a fast food restaurant is $10.00/hr. Assuming that the wages are normally distributed with a standard deviation of $0.55. If a worker at this fast food restaurant is selected at random, what is the probability that the worker earns less than $8.70 per hour?
According to the 2010 US Census, the average number of residents per housing unit for the n=87 counties in Minnesota was 2.10, and the standard deviation was 0.38. Test whether the true mean number of residents per housing unit in Minnesota in 2010 is less than the national value of 2.34 at the level α = 0.05. a. Show all five steps of this test. b. What type of error could we be making in this context? c. What is...
Suppose that the average person watches 6.25 hours of television per day with a standard deviation of 2.75 hours. Assuming television viewing is normally distributed, what percentage of people watch over 10 hours of television per day?
5. According to the 2010 US Census, the average number of residents per housing unit for the n=87 counties in Minnesota was 2.10, and the standard deviation was 0.38. Test whether the true mean number of residents per housing unit in Minnesota in 2010 is less than the national value of 2.34 at the level α = 0.05. a. Show all five steps of this test. b. What type of error could we be making in this context? c. What...