KThe number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with amean of 1252 chips and standard deviation 129 chips.(a) What is the probability that a randomly selected bag contains between 1100 and 1400 chocolate chips, inclusive?(b) What is the probability that a randomly selected bag contains fewer than 1000 chocolate chips?(c) What proportion of bags contains more than 1175 chocolate chips?(d) What is the percentile rank of a bag that contains 1425 chocolate chips?(a) The probability that a randomly selected bag contains between 1100 and 1400 chocolate chips, inclusive, is(Round to four decimal places as needed.)ISor

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Heights of 10 year olds. Heights of 10 year olds, regardless of gender, closely follow a normal distribution with mean 55 inches and standard deviation 6 inches. (a) The height requirement for Batman the Ride at Six Flags Magic Mountain is 54 inches. What percent of 10 year olds cannot go on this ride? 0.4338 (b) Suppose there are four 10 year olds. What is the chance that at least two of them will be able to ride Batman the Ride? .7797 (c) Suppose you work at the park to help them better understand their customers’ demographics, and you are counting people as they enter the park. What is the chance that the first 10 year old you see who can ride Batman the Ride is the 3rd 10 year old who enters the park? 0.106549 (d) What is the chance that the fifth 10 year old you see who can ride Batman the Ride is the 12th 10 year old who enters the park? I only need help with problem d. Thank you!
Answer A-d
Prices of homes in Raleigh, North Carolina are Normally distributed with a mean of $231,600 and a standard deviation of $38,550. What is the probability that the mean price of an SRS of 75 homes is more than $240,000? 0.0296 0.4272 O 0.2847 0.9173
a,b,c
Please help.
Coal is carried from a mine in West Virginia to a power plant in New York in hopper cars on a long train. The automatic hopper car loader is set to put 55 tons of coal into each car. The actual weights of coal loaded into each car are normally distributed, with mean ? = 55 tons and standard deviation ? = 1.6 ton. (a) What is the probability that one car chosen at random will have less than 54.5 tons of coal? (Round your answer to four decimal places.)(b) What is the probability that 42 cars chosen at random will have a mean load weight x of less than 54.5 tons of coal? (Round your answer to four decimal places.)(c) Suppose the weight of coal in one car was less than 54.5 tons. Would that fact make you suspect that the loader had slipped out of adjustment? YesNo Suppose the weight of coal in 42 cars selected at random had an average x of less than 54.5 tons. Would that fact make you suspect that the loader had slipped out of adjustment? Why? Yes, the probability that this…
The number of pizzas consumed per month by university students is normally distributed with a mean of 13 and a standard deviation of 2. Use Excel to answer the following questions: A. What proportion of students consume more than 15 pizzas per month? Probability = B. What is the probability that in a random sample of size 8, a total of more than 96 pizzas are consumed? (Hint: What is the mean number of pizzas consumed by the sample of 8 students?) Probability =
The amount of money that college students spend on food each week during the academic year is normally distributed with a mean of $31.28 and a standard deviation of $11.42 What is the probability that one randomly selected student will spend less than $25 per week on food? If you randomly select 10 students, what is the probability that their mean will be less than $25?
Coal is carried from a mine in West Virginia to a power plant in New York in hopper cars on a long train. The automatic hopper car loader is set to put 57 tons of coal into each car. The actual weights of coal loaded into each car are normally distributed, with mean ? = 57 tons and standard deviation ? = 1.2 ton. (a) What is the probability that one car chosen at random will have less than 56.5 tons of coal? (Round your answer to four decimal places.)(b) What is the probability that 39 cars chosen at random will have a mean load weight x of less than 56.5 tons of coal? (Round your answer to four decimal places.)
Women's shoe sizes are (approximately) normally distributed, with an average size of 8.076 and a standard deviation of 1.468. You work at Vogue Magazine, and would like to interview some women about how shoes fit. You take a random sample of 10 women. What is the probability that the 10 women you sampled had an average shoe size that is greater than 8?
The number of pizzas consumed per month by university students is normally distributed with a mean of 11 and a standard deviation of 4. A. What proportion of students consume more than 13 pizzas per month? Probability = B. What is the probability that in a random sample of size 10, a total of more than 130 pizzas are consumed? Probability=
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