Rachel, the head chef in a restaurant, modelled the amount of waiting time for dishes to get served to the customers. According to her, the waiting time is normally distributed with mean equal to 10 minutes, and standard deviation equal to 2 minutes. a. What is the probability that the waiting time for a dish is from 8.5 to 11.5 minutes? b. What is the probability that the waiting time for a dish is greater than 10 minutes? c. What is the probability that the waiting time for a dish is less than 8 minutes?

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: From the provided information,Mean (µ) = 162000Standard deviation (σ) = 36000Sample size (n) = 58

Q: expected number of students who read the book online.

A: Students purchased hard copy =P(H) = 60% =0.60 Students print out from the web =P(W)= 25% = 0.25…

Q: The p-value… is used to determine the Margin Of Error measures the number of standard deviations…

A: p value is a probabilty  which indicates the decision about null hypothesis assuming true  so that…

Q: Given the mean is 120 minutes and the standard deviation is 30 minutes. What is the probability that…

A: The mean is 120 minutes and standard deviation is 30 minutes.

Q: Suppose that the heights of men in the United States are normally distributed with a mean of 65.6…

A: The mean is 65.6 and the standard deviation is 2.7.

Q: Solve the following. Show your complete solution. The amount of time that sales managers devote to…

A:

Q: A successful basketball player has a height of 6 feet 8 ​inches, or 203 cm. Based on statistics from…

A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

Q: The owner of a computer repair shop has determined that their daily revenue has mean $7200 and…

A: We have given that  Mean(µ) = 7200Standard deviations (σ) = 1200 Number of days (n) = 30

Q: builtrite has calculated average weekly daily sales to be 80000 with a standard deviation of 12000.…

A: Mean()=80000standard deviation()=12000 one store manager made a bet with another store manager that…

Q: According to The World Bank, only 9% of the population of Uganda had access to electricity as of…

A:

Q: Assume that the salaries of elementary school teachers are normally distributed with a mean $35,000…

A:

Q: High school girls average 80 text messages daily. Assume the population standard deviation is 15…

A: Given information:

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: According to the Nielsen Company, the mean number of TV sets in a U.S. household in 2013 was 2.24…

A: Mean = 2.24 Standard deviation = 1.3 Sample size = 95

Q: A survey indicates that for each trip to the supermarket, a shopper spends an average of 45 minutes…

A: Given that, The lengthsnof time spent in the store are normally distributed and are represented by…

Q: A survey was given to people living in Broward County. The county randomly collected the income…

A: given data  μ = 100000 $σ = 10000 $P(90000<x<110000) = ?

Q: Data from the Bureau of Labor Statistics’ Consumer Expenditure Survey show that annual expenditures…

A: Given information- For the year 2001- Population mean, µ = $235 Population standard deviation, σ =…

Q: Refer to the accompanying table, which describes results from groups of 8 births from 8 different…

A: xP(x)00.00310.02620.11830.21240.27450.22760.10870.02780.005

Q: James and Harry play baseball and each of them can score one goal with the probabilities of 0.4 and…

A:

Q: A professor using an open-source introductory statistics book predicts that 60% of the students will…

A: given data, 60% - student will purchase a hard copy of the book,25%- will print it out from the…

Q: 3) An F-1 race has an average length of 305 kilometers with a standard deviation of 72 kilometers.…

A:

Q: The mean is μ = girl(s). (Round to one decimal place as needed.) The standard deviation is o =…

A: Number of girls xP(x)00.00310.03220.11430.22740.26650.21460.11270.02980.003

Q: Suppose that the number of hours that an adult watches in a day has a mean of 2.4 hours and a…

A: Given: i. Calculate the corresponding Z score as follows: The diagram corresponding to the mean…

Q: Suppose that we know that 33.8% of the people born in the United States between 1936 and 1951 have…

A:

Q: The probabilities that a person is receiving a chat message 0, 1, 2, 3, 4, or 5 per day are the…

A: Let X be the random variable having probability distribution is,  X 0 1 2 3 4 5 P(x)  0.08 0.19…

Q: Solve the problem. Assume that mountain lions' weights are normally distributed with a mean of 62.6…

A: We have given that,  X be the random variable from normal distribution with mean (μ) = 62.6 ,…

Q: 1, the mean number of goldfish in the package is 187. find the probability of choosing a package…

A: Thanks for posting the question. Since multiple questions are posted, we will answer one question…

Q: A professor knows that her statistics students' final exam scores have a mean of 79 and a standard…

A:

Q: A class has 12 students registered. On any class time 45% of the students are absent. a. Find the…

A: It is given that the number of students registered in class is 12 and 45% of the students are absent…

Q: The probability that Mugdho loses an armwrestling match against Snigdho is 60.0%. Let’s say, there’s…

A: Solution-: Given: n=19,p=0.60 We find, (a) What is the mean number of matches where Snigdho…

Q: A door-to-door salesperson is visiting houses in Hamilton to sell internet plans. The probability…

A: The probability that a house decides to buy the internet plan is 25%. The salesperson visits 100…

Q: If n=7 (days in a week) and p=0.45 (the probability that the food truck operates on a single day),…

A: Given information- Sample size, n = 7 The probability that the food truck operates on a single day…

Q: A professor of statistics noticed that the marks in his course are normally distributed. He also…

A:

Q: A civil engineer takes a public ride going to his firm. The average time for his trip is 24 minutes,…

A: Given : A civil engineer takes a public ride going to his firm.  The average time for his trip is 24…

Q: In a popular painkiller medicine, it is advertised there is 500 mg of the active ingredient per…

A: Given,mean(μ)=504 mgstandard deviation(σ)=2 mg

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.