You may need to use the appropriate appendix table or technology to answer this question.A group conducted a survey of 13,000 brides and grooms married in the United States and found that the average cost of a wedding is $28,858. Assume that the cost of a wedding is normally distributed with a mean of $28,858 and a standard deviation of $5,400.(a) What is the probability that a wedding costs less than $18,000? (Round your answer to four decimal places.)x(b) What is the probability that a wedding costs between $18,000 and $31,000? (Round your answer to four decimal places.)(c) What is the minimum cost (in dollars) for a wedding to be included among the most expensive 5% of weddings? (Round your answer to the nearest dollar.)$X

Answered: Image /qna-images/answer/6b1dacf1-b59b-4b8d-9e9e-d2bce702aacd.jpg

Answered: You may need to use the appropriate…

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 Greenville Power Authority states that the mean monthly energy bill for their customers is $228 with a standard deviation of $38. They know that energy bills follow a normal distribution. a. Between what two values do we expect 99.7% of energy bill’s to fall? b. What is the probability of a randomly selected energy bill at least $190?
The price of lunch at the mall has a mean of $5.00. The standard deviation is $1.50. What is the probability of spending less than $5.62? 0.6603 1.000 0.5000 0.3397
One year, the distribution of salaries for professional sports players had mean $1.6 million and standard deviation $0.81 million. Suppose a sample of 100 major league players was taken. Find the approximate probability that the average salary of the 100 players that year exceeded $1.7 million. Round your answer to nearest ten-thousandth.
The cost of textbooks is normally distributed with a mean of $239. You do not know the population standard deviation, but you estimate the sample standard deviation to be $47.What is the probability that from a sample of 7 textbooks, their average cost will be between $204 and $270? (Report answer accurate to three decimal places.)
The annual per capita consumption of ice cream (in pounds) in the United States can be approximated by a normal distribution with mean of 20.7 Ibs and a standard deviation of 4.2 Ibs. Find the probability that the population consumes at most 10 lbs yearly? Answer in a complete sentence in context.
A mechanic sells a brand of automobile tire that has a life expectancy that is normally distributed, with a mean life of 35,000 miles and a standard deviation of 2100 miles. He wants to give a guarantee for free replacement of tires that don't wear well. How should he word his guarantee if he is willing to replace approximately 10% of the tires? Click to view page 1 of the table. Click to view page 2 of the table. Tires that wear out by miles will be replaced free of charge. (Round to the nearest mile as needed.)
Suppose there is a city where the mean cost per month of a one-bedroom apartment is $1,500, with a standard deviation of $250. Approximately what percentage of one-bedroom apartments in the city cost between $750 and $1,000?
You may need to use the appropriate appendix table or technology to answer this question. The weight of football players is normally distributed with a mean of 220 pounds and a standard deviation of 20 pounds. What is the probability of a player weighing less than 255 pounds
The NJ Department of Health has reported the average life span of NJ residents is 81 years. If the standard deviation is σ = 4 years, what is the probability of a person living to at least 92 years of age?
Jodie's Ice Cream Stand sells cones at the beach. Her records show that she sells a mean of 180 cones each day, with a standard deviation of 15 cones, distributed normally. She would like to keep the probability of running out of cones below 1%. How many cones should she stock each day?
You may need to use the appropriate appendix table to answer this question. According to Money magazine, Maryland had the highest median annual household income of any state in 2018 at $75,847.† Assume that annual household income in Maryland follows a normal distribution with a median of $75,847 and standard deviation of $33,800. (a) What is the probability that a household in Maryland has an annual income of $110,000 or more? (Round your answer to four decimal places.) (b) What is the probability that a household in Maryland has an annual income of $50,000 or less? (Round your answer to four decimal places.) (c) What is the probability that a household in Maryland has an annual income between $40,000 and $70,000? (Round your answer to four decimal places.) (d) What is the annual income (in $) of a household in the ninety-first percentile of annual household income in Maryland? (Round your answer to the nearest cent.
Costs for standard veterinary services at a local animal hospital follow a Normal distribution with a mean of $88 and a standard deviation of $24. What is the probability that one bill for veterinary services costs between $42 and $133?

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