The Survey of Earned Doctorates published by Statistics Canada revealed that doctoral candidates required, on average, 68 months to earn their Ph.D. degrees. If time to completion is normally distributed with a standard deviation of 13 months, find the probability that a doctoral candidate will earn a Ph.D. degree in: (Round to 4 decimals) a. Less than 5 years. b. Between 5 and 6 years. c. More than 5.5 years. d. More than 6 years. e. Between 4.5 and 5.5 years.

Q: In an article about the cost of health care, Money magazine reported that a visit to a hospital…

A: The mean of the cost of the sore throat is $328. The standard deviation of the cost of the sore…

Q: Riana Miren and Trinh are 40 and 57 years old, respectively. Based on a normal distribution with…

A: It is given that  Mean, μ = 49.3 Standard deviation, σ = 11.8 Z-Score, Z = ( X-μ )/σ

Q: The average number of acres burned by forest and range fires in a large New Mexico county is 4,300…

A:

Q: hotel in a European city follows a normal distribution with a mean of 170 euros and a standard…

A:

Q: In a murder trial in Los Angeles, a shoe expert stated that the heights of men with size 12 shoes is…

A: It is given that the heights of men with size 12 shoes is normally distributed with mean 73.5 inches…

Q: A study indicates that​ 18- to​ 24- year olds spend a mean of 120 minutes watching video on their…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Assume that the traffic to the web site of Smiley’s People, Inc., which sells customized T-shirts,…

A: Note- Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: Assume that the traffic to the web site of Smiley’s People, Inc., which sells customized T-shirts,…

A: Since, you have you have posted a question with multiple subparts we will solve first three subparts…

Q: Assume that the traffic to the web site of Smiley’s People, Inc., which sells customized T-shirts,…

A: Note: Please repost part d as i can answer only 3 subparts as per my policy. Given data,Mean μ=4.56…

Q: In​ 2008, the per capita consumption of soft drinks in Country A was reported to be 19.11 gallons.…

A: GivenMean(μ)=19.11standard deviation(σ)=5

Q: The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard…

A:

Q: Suppose that the lifetimes of light bulbs are approximately normally distributed, with a mean of 56…

A: Since you have posted multiple question, we only provide answers of first three subparts . Please…

Q: The monthly utility bills in a city are normally​ distributed, with a mean of ​$100 and a standard…

A: Provided information is ; Let X be the monthly utility bill mean(μ) = 100 standard deviation(σ)=15…

Q: The starting salaries of individuals with an MBA degree are normally distributed with a mean of…

A:

Q: Assume that the traffic to the web site of Smiley’s People, Inc., which sells customized T-shirts,…

A: Givenmean(μ) = 4.44 millionsstandard deviation(σ) = 720000 = 0.72 millions

Q: According to a Sallie Mae survey and credit bureau data, in 2008, college students carried an…

A:

Q: A recent graduate from a business college is hired by a marketing firm in sales. Her first year's…

A: Given data: Mean = $33500 Standard deviation = $ 2000 To find: Based on the research, what is the…

Q: 3. The number of cars that passes through Sta. Mesa Highway every weekday resembles a normal…

A: Given that mean =8702 ,s.d =678 p( 7000 < x < 8000) =?

Q: Suppose that the lifetimes of light bulbs are approximately normally​ distributed, with a mean of 56…

A: From the provided information, Mean (µ) = 56 Standard deviation (σ) = 3.2 Let X be a random variable…

Q: Assume that the traffic to the web site of Smiley’s People, Inc., which sells customized T-shirts,…

A: Given data,Mean μ=4500000sd     σ=880,000

Q: Rivers Casino did an audit of all of their blackjack tables and found that the amount of money…

A: According to the provided information, μ=$6000σ=$200

Q: The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard…

A: Here, mean is $100 and standard deviation is $14.

Q: airfares in the United States rose to an all-time high of $375 per ticket. Airfares were based on…

A: Comment: As per the our company guidelines we are supposed to answer only three subparts. Kindly…

Q: The average hourly sale of a certain ride in an amusement park is P148.75/hr with a standard…

A: Given information- Population Mean µ = P148.75/hr Standard deviation (σ) = P75.76 Let X be the…

Q: ccording to the National Association of Colleges and Employers, the 2015 mean starting salary for…

A:

Q: Suppose that the lifetimes of light bulbs are approximately normally distributed, with a mean of 56…

A: Given: X~Normalμ=56,σ2=3.32

Q: A study indicates that 18- to 24- year olds spend a mean of 120 minutes watching video on their…

A: Given that, Mean = 120 Standard deviation = 20

Q: The monthly utility bills in a city are normally​ distributed, with a mean of $100 and a standard…

A: X follows a Normal distribution with mean = 100 and S.D = 13 Then z=(x-mean)/SD = (x-100)/13…

Q: The average resident of Metro City produces 770 pounds of solid waste each year, and the standard…

A: We have to find probability

Q: It is believed that the average shoulder height of Furry Manumars is 16 inches, with a standard…

A: Given the mean height of furry Manumars as 16 inches, the standard derivation as 2 inches , sample…

Q: Suppose that the lifetimes of light bulbs are approximately normally distributed, with a mean of 57…

A: Given data,μ=57σ=3.5

Q: a

A: Given data: Mean cost of money magazine is $328, standard deviation of the magazine is $92. To find:…

Q: Heights of 10 year olds, regardless of gender closely follow a normal distribution with mean 55…

A: Consider X as a random variable that follows a normal distribution with a mean 55 and standard…

Q: Ten years after graduation, the salaries of Heriot-Watt University graduates are Normally…

A: Given that.   X~N( μ , ?^2 )   μ=55000    , ?=11000   Z-score =( x - μ )/?

Q: A study indicates that 18- to 24- year olds spend a mean of 120 minutes watching video on their…

A: Assume that the amount of time watching video on a smartphone per month is normally distributed and…

Q: Assuming that student incomes from employment in industry during the day are normally distributed…

A:

Q: A quality control company was hired to stuudy length company. The team carefully measured the length…

A:

Q: The monthly utility bills in a city are normally​ distributed, with a mean of ​$100 and a standard…

A:

Q: The time needed to complete a final examination in a particular college course is normally…

A:

Q: According to the American Time Use Survey results released by the Bureau of Labor Statistics on June…

A: Given : μ = 168 , σ= 20 and n= 400       By Central Limit Theorem, x̅ follows a Normal…

Q: A set of final examination grades in an introductory statistics course is normally​ distributed,…

A: Here, µ = 72, σ = 9.

Q: Suppose that the lifetimes of light bulbs are approximately normally​ distributed, with a mean of…

A: From the provided information, Mean (µ) = 57 Standard deviation (σ) = 3.5 Let X be a random variable…

Q: it was determined that the survival time, in weeks, of an animal subjected to a certain exposure of…

A:

Q: In a health examination survey of a prefecture in Japan, the population was found to have an average…

A: Given that Mean =99 ,s.d =12 Find p ( 90 < x <111 ) = ?

Q: A study indicates that 18- to 24- year olds spend a mean of 115 minutes watching video on their…

A:

Q: The monthly utility bills in a city are normally​ distributed, with a mean of ​$100 and a standard…

A: Given : mean = 100 Standard deviation = 13

Q: In a murder trial in Los Angeles, a shoe expert stated that the heights of men with size 12 shoes is…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: Suppose that the lifetimes of light bulbs are approximately normally​ distributed, with a mean of 57…

A: Note- Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: The number of cars crossing the Pigeon River border crossing each day is known to be normally…

A: GivenMean(μ)=2500standard deviation(σ)=600

Q: Suppose that the lifetimes of light bulbs are approximately normally distributed, with a mean of 57…

A: Given, The proportion of light bulbs will last more than 60 hours is obtained as- The required…

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.