Central Limit Theorem for Sums or Totals of SamplesThe average amount ofdeviation of $1.8300. 16 customers are randomly selected. Please answer the following questions, andround all answers to 4 decimal places where possible and assume a normal distribution.money that people spend at Don Mcalds fast food place is $7.4500 with a standarda. What is the distribution of X? X - N(b. What is the distribution of x? a - N(c. What is the distribution of > x? ) x - N(d. What is the probability that one randomly selected customer will spend more than $7.4338?e. For the 16 customers, find the probability that their average spent is more than $7.4338.f. Find the probability that the randomly selected 16 customers will spend less than $118.9408.g. For part e) and f), is the assumption of normal necessary? O YesO Noh. The owner of Don Mcalds gives a coupon for a free sundae to the 2% of all groups of 16 people whospend the most money. At least how much must a group of 16 spend in total to get the free sundae? $

Answered: The average amount of money that people…

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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The mean height of an adult giraffe is 17 feet. Suppose that the distribution is normally distributed with standard deviation 0.8 feet. Let X be the height of a randomly selected adult giraffe. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N( b. What is the median giraffe height? ft. c. What is the Z-score for a giraffe that is 19 foot tall? d. What is the probability that a randomly selected giraffe will be shorter than 17.1 feet tall? e. What is the probability that a randomly selected giraffe will be between 16.8 and 17.5 feet tall? f. The 70th percentile for the height of giraffes is ft.
The mean height of an adult giraffe is 17 feet. Suppose that the distribution is normally distributed with standard deviation 0.8 feet. Let X be the height of a randomly selected adult giraffe. Round all answers to 4 decimal places where possible a. What is the distribution of X? X N b.What is the median giraffe height? ft. c. What is the Z-score for a giraffe that is 19 foot tall? d. What is the probability that a randomly selected giraffe will be shorter than 17.7 feet tall? e. What is the probability that a randomly selected giraffe will be between 16 and 16.9 feet tall? f. The 90th percentile for the height of giraffes is ft.
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Please only do that one that is incorrect Or isn't done
Each sweat shop worker at a computer factory can put together 4.4 computers per hour on average with a standard deviation of 0.9 computers. 45 workers are randomly selected to work the next shift at the factory. Round all answers to 4 decimal places where possible and assume a normal distribution. a. What is the distribution of X? X - N b. What is the distribution of x? x - N( c. What is the distribution of x? N( d. If one randomly selected worker is observed, find the probability that this worker will put together between 4.2 and 4.3 computers per hour. e. For the 45 workers, find the probability that their average number of computers put together per hour is between 4.2 and 4.3. f. Find the probability that a 45 person shift will put together between 193.5 and 202.5 computers per hour. g. For part e) and f), is the assumption of normal necessary? O NoO Yes h. A sticker that says "Great Dedication" will be given to the groups of 45 workers who have the top 15% productivity. What is…
The average time to run the 5K fun run is 22 minutes and the standard deviation is 2.7 minutes. 43 runners are randomly selected to run the 5K fun run. Round all answers to 4 decimal places where possible and assume a normal distribution. a. What is the distribution of X? X - N( b. What is the distribution of a? a- N( c. What is the distribution of ) x? x - N( С. d. If one randomly selected runner is timed, find the probability that this runner's time will be between 21.7824 and 22.2824 minutes. e. For the 43 runners, find the probability that their average time is between 21.7824 and 22.2824 minutes. f. Find the probability that the randomly selected 43 person team will have a total time less than 967.5. g. For part e) and f), is the assumption of normal necessary? ONo Yes h. The top 15% of all 43 person team relay races will compete in the championship round. These are the 15% lowest times. What is the longest total time that a relay team can have and still make it to the…
The average time to run the 5K fun run is 24 minutes and the standard deviation is 2.7 minutes. 16 runners are randomly selected to run the 5K fun run. Round all answers to 4 decimal places where possible and assume a normal distribution. a. What is the distribution of X? X N( b. What is the distribution of a? ¤ - N( c. What is the distribution of) x? ) x - N( d. If one randomly selected runner is timed, find the probability that this runner's time will be between 23.1875 and 23.9875 minutes.
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please help with a,b,c
The average time to run the 5K fun run is 20 minutes and the standard deviation is 2.4 minutes. 41 runners are randomly selected to run the 5K fun run. Round all answers to 4 decimal places where possible and assume a normal distribution. a. What is the distribution of X? X- N( b. What is the distribution of a? - N( c. What is the distribution of æ? x - N( d. If one randomly selected runner is timed, find the probability that this runner's time will be between 19.5378 and 20.0378 minutes. e. For the 41 runners, find the probability that their average time is between 19.5378 and 20.0378 minutes. f. Find the probability that the randomly selected 41 person team will have a total time more than 795.4. g. For part e) and f), is the assumption of normal necessary? O No Yes h. The top 20% of all 41 person team relay races will compete in the championship round. These are the 20% lowest times. What is the longest total time that a relay team can have and still make it to the championship…
The average amount of money that people spend at Don Mcalds fast food place is $7.5500 with a standard deviation of $1.5100. 14 customers are randomly selected. Please answer the following questions, and round all answers to 4 decimal places where possible and assume a normal distribution. a. What is the distribution of X? X - N(| b. What is the distribution of x? a - N( c. What is the distribution of > x? ) x - N( d. What is the probability that one randomly selected customer will spend less than $7.7746? e. For the 14 customers, find the probability that their average spent is more than $7.7746. f. Find the probability that the randomly selected 14 customers will spend less than $108.8444. g. For part e) and f), is the assumption of normal necessary?O Yes h. The owner of Don Mcalds gives a coupon for a free sundae to the 4% of all groups of 14 people who spend the most money. At least how much must a group of 14 spend in total to get the free sundae? $ No
The average production cost for major movies is 58 million dollars and the standard deviation is 20 million dollars. Assume the production cost distribution is normal. Suppose that 48 randomly selected major movies are researched. Answer the foling questions. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N ---------, ------------- b. What is the distribution of x̄? x̄ ~ N -----------, ----------- c. For a single randomly selected movie, find the probability that this movie's production cost is between 57 and 60 million dollars. -------------- d. For the group of 48 movies, find the probability that the average production cost is between 57 and 60 million dollars. --------------- e. For part d), is the assumption of normal necessary? --------------------Yes, -------------No NOTE..........QUESTION (D) AND (E) NEEDS TO BE ANSWERED

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