4. A certain machine fills potato bags following a normal distribution with the following parameters: ?=20 ??, ?=3. The probability that a randomly selected bag contains more than X oz is 3%. Show all work to find the value of X.
4. A certain machine fills potato bags following a normal distribution with the following parameters: ?=20...
25. A manufacturing process produces bags of cookies. The distribution of content weights of these bags is Normal with mean 16.0 oz and standard deviation 0.8 oz. We will randomly select n bags of cookies and weigh the contents of each bag selected. If 100 bags of cookies are selected randomly, the probability that the sample mean will be between 15.84 and 16.16 ounces is a) 0.046. Ob) 0.110. c) 0.890. d) 0.954.
A quality control engineer at a potato chip company tests the bag filling machine by weighing bags of potato chips. Not every bag contains exactly the same weight. But if more than 16% of bags are over-filled then they stop production to fix the machine. They define over-filled to be more than 1 ounce above the weight on the package. The engineer weighs 105 bags and finds that 26 of them are over-filled. He plans to test the hypotheses H0:...
A quality control engineer at a potato chip company tests the bag-filling machine by weighing bags of potato chips. Not every bag contains exactly the same weight. But if more than 15% of bags are overfilled, then they stop production to fix the machine. They define overfilled to be more than 1 ounce above the weight on the package. The engineer weighs 100 bags and finds that 21 of them are overfilled. He plans to test the hypotheses: H_0: p...
The weight of bags of green landscaping gravel X is model by normal distribution with a mean 26.7 kg and standard deviation 0.3 kg. Determined the probability that a randomly selected bag of green gravel walkway less than 26 kg round your answer to 4 decimal places
A worker at a landscape design center uses a machine to fill bags with potting soil. Assume that the quantity put in each bag follows the continuous uniform distribution with low and high filling weights of 10.8 pounds and 15.7 pounds, respectively. a. Calculate the expected value and the standard deviation of this distribution. (Do not round intermediate calculations. Round your "Expected value" to 2 decimal places and "Standard deviation" answer to 4 decimal places.) b. Find the probability that...
A manufacturing process produces bags of cookies. The distribution of content weights of these bags is Normal with mean 15.0 oz and standard deviation 1.0 oz. We will randomly select n bags of cookies and weigh the contents of each bag selected. Which of the following statements is true with respect to the sampling distribution of the sample mean, ¯xx¯? According to the law of large numbers, if the sample size, n, increases, ¯xx¯ will tend to be closer to...
The amount of corn chips dispensed into a 13-ounce bag by the dispensing machine has been identified as possessing a normal distribution with a mean of 13.5 ounces and a standard deviation of 0.3 ounce. Suppose 40 bags of chips were randomly selected from this dispensing machine. Find the probability that the sample mean weight of these 40 bags exceeded 13.6 ounces.
Question 4 A quality control engineer at a potato chip company tests the bag filling Select one answer. machine by weighing bags of potato chips. Not every bag contains exactly the 10 points same weight. But if more than 15% of bags are over-filled then they stop production to fix the machine. They define over-filled to be more than 1 ounce above the weight on the package. The engineer weighs 100 bags and finds that 21 of them are over-filled....
A quality control engineer at a potato chip company tests the bag filling machine by weighing bags of potato chips. Not every bag contains exactly the same weight. But if more than 12% of bags are over-filled then they stop production to fix the machine. They define over-filled to be more than 1 ounce above the weight on the package. The engineer weighs 133 bags and finds that 20 of them are over-filled. He plans to test the hypotheses H...
a machine is designed to fill some snack sized chip with normally distributed weights with a mean of 6 oz and a standard deviation of 0.5 oz. if 40 bags of potato chips are randomly selected what is the probability that their mean weight is more than 6oz?