1. Suppose the height of a tomato plant follows a normal distribution with a mean of 74.5 centimeters anda standard deviation of 5.4 centimeters.(a) What is the probability the height of a tomato plant is less than 68.25 centimeters?(b) What is the probability the height of a tomato plant is more than 82.45 centimeters?(c) What height separates the top 5% of tallest tomato plants from the bottom 95%?

Q: According to Runzheimer International, a typical business traveler spends an average of $281 per day…

A: We have given that Mean(µ) = 281 Population Standard deviations (σ) = 47 Sample size (n) = 50

Q: The average expenses of the Dela Cruz Family is ₱12,600 every half of a month with a standard…

A: Given data,μ=12600σ=1570P(X<11000)=?

Q: The Bureau of Labor Statistics provides compensation information on and services for various…

A:

Q: uppose that the miles-per-gallon (mpg) rating of passenger cars is normally distributed with a mean…

A: Given information: The population mean is μ=33.8. The population standard deviation is σ=3.5. Let X…

Q: The time it takes a computer repair company to diagnose a computer follows a normal distribution…

A: Given data  X = time taken for computer repair company to diagnose a computer μ=50   σ=12…

Q: According to the Department of Education, the time college students spend on their cell phones daily…

A: Given that, mean, mu=270 Standard deviation, sigma= 75 We know that, Z score=(X-mu)/sigma

Q: normally distributed with a mean of 28 ounces and a standard deviation of 1 ounce.  What is the…

A: From the available information, the amounts of boxed cereal are normally distributed with a mean of…

Q: 3. A line up for tickets to a local concert had an average (mean) waiting time of 20 minutes with a…

A: Formula : Z =(X - μ)/σ

Q: Suppose your customers' incomes are normally distributed with a mean of $37,500 with a standard…

A:

Q: In 1999, the murder rates (per 100,000) for the 50 states and the District of Columbia had a mean of…

A:

Q: Suppose it is known that 80% people own a cellphone. If a random sample of 100 people were surveyed,…

A:

Q: Suppose the grades in a finite mathematics class are normally distributed with a mean of 75 and a…

A: Given Data: The mean of the distribution is: μ=75 The standard deviation of the distribution is: σ=5…

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

A:

Q: 2. Suppose the wait times at doctor's office are normally distributed, with mean of 30 minutes and a…

A: Let, X= wait time in office μ=mean=30 σ= sd=10

Q: Suppose that the average cell phone bill at Bellevue University is $38.90 per month with a standard…

A: Given that, μ=$38.90σ=$3.64n=44 The mean standard deviation of sampling distribution of sample mean…

Q: The number of shots on goal in an amateur hockey league's games is normally distributed, with a mean…

A: Let us assume X= The number of shots on goal in an amateur hockey league's games Given that X…

Q: 1. If the measure of systolic blood pressure is normally distributed with a mean of 120 and a…

A: Hello, since your question has multiple parts, we will solve the first question for you. if you want…

Q: According to Runzheimer International, a typical business traveler spends an average of $281 per day…

A: Given,sample size(n)=60mean(μ)=281standard deviation(σ)=47

Q: 1. The waiting time at the doctor's office has a normal distribution with a mean of 35 minutes and…

A: Given: μ=35 minutesσ=2.6 minutes

Q: Suppose the probability a patient will recover from a disease following medication is 0.7. In a…

A: Given : the probability a patient will recover from a disease following medication is 0.7.  In a…

Q: 4. The average public elementary school has 468 students with a standard deviation of 87. If a…

A: Here use given step by step solution and normal distribution of sample mean

Q: 24. Suppose annual salaries for sales associates at Target have a mean of $32,500 and a standard…

A: According to the provided information, Mean (μ) =$32500 Standard Deviation (σ) = $2500

Q: 1) The time until recharge for a battery in a smartphone is normally distributed with a mean of 250…

A: a. Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: 2. The line width for semiconductor manufacturing is assumed to be normally distributed with a mean…

A:

Q: What is the probability that the amount of collagen is greater than 74 grams per mililiter? swer: O…

A: Let X denote the amount of collagen. Given that X follows N(mean = 76, SD = 8), then Z = (X -…

Q: 3. the Educational Testing Service in Princeton, New ler sey (which administers SAT exam) re- In…

A: In this question, we have given that probability that a student selected randomly will score between…

Q: ) H0: ?1 − ?2 = 0 Ha: ?1 − ?2 > 0     t=_________ P-value_______   State the conclusion in the…

A:

Q: Suppose that the heights of children in kindergarten can be described by a Normal model with mean…

A:

Q: Suppose the area that can be painted using a single can of spray paint is slightly variable and…

A: It is given that the area that can be painted using a single can of spray paint has a normal…

Q: Suppose the heights of students in a class follows normal distribution. The mean is 60 inches and…

A:

Q: 1. Suppose the mean life span of a randomly selected Chihuahua dog is normally distributed with a…

A: Solution

Q: According to Runzheimer International, a typical business traveler spends an average of $281 per day…

A:

Q: 4. The Coffee Bean and Tea Leaf morning customer load follows a normal distribution with mean 45 and…

A:

Q: Part A: To the nearest tenth of a percent, what is the probability that a car is going slower than…

A: Given: μ=76.4, σ=5.0 The corresponding z-value needed to be computed: The probability that a car is…

Q: Suppose the Internal Revenue Service reported that the mean tax refund for the year 2016 was $2,800.…

A: It is given that the amounts refunded follows normal distribution with mean $2,800 and standard…

Q: Suppose the heights of 18-year-old men are approximately normally distributed, with mean 66 inches…

A: Let "x" be the heights of 18-year-old men. Draw the normal curve and shade the area between…

Q: Statisticians determined that the mortgages of homeowners in a city is normally distributed with a…

A: Given distribution is normally distributed. Mean=250000 Standard deviation=50000 X~N(μ=250000,…

Q: Suppose the heights of students in a class follows normal distribution. The mean is 66 inches and…

A: It is given that the mean is 66 inches and the standard deviation is 5 inches.

Q: 1. There are 95% of students at school weigh between 62 kg and 90 kg at Westchester Community…

A: 95% of the data lies between X¯-1.96×σ and X¯+1.96×σ hence we get, X¯-1.96×σ = 62 X¯+1.96×σ = 90…

Q: The number of shots on goal in an amateur hockey league's games is normally distributed, with a mean…

A: Let X=the number of shots X follows a normal distribution with mean=56.3 and standard deviation= 8.1…

Q: Suppose the current measurements made on a conductor wire track follow a normal distribution with…

A: Given, Suppose the current measurements made on a conductor wire track follow a normal distribution…

Q: Charlotte, North Carolina has a mean annual rainfall of 43 inches, with a standard deviation of 4.2…

A: Solution: Given data Mean(μ) = 43 inches Standard deviation(s) = 4.3 inches Amount of rainfall  is…

Q: ample of 22 randomly selected accounts, what is the distribution of the sample mean? What are the…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: Suppose that the starting salaries of MBAs at Wilfrid Laurier University (WLU) are normally…

A: Given the data MBA's at WPUNJ MBA's at Rutgers Mean μ1=62000 Mean μ2=60000 SD, σ1= 14500 SD,…

Q: 6. Suppose that the average outstanding credit card balance for young professionals is 11,200 with a…

A: Given : The average outstanding credit card balance i.e. μ=11200 Standard deviation i.e. σ=2600…

Q: For a Poisson distribution of drivers with mean = 20, what is the probability that the number of…

A: Given that the mean =μ= λ=20So, the standard deviation=σ=λ=20We have to find P(μ-2σ≤X≤μ+2σ)

Q: What is the standard deviation of the commuting time?

A: The standard deviation formula for uniform distribution is, σ=b-a12 The commuting time on a…

Q: What is the probability that the height of an 18-year-old man selected at random is between 69…

A: Given μ=68σ=3

Q: According to the Department of Education, the time college students spend on their cell phones daily…

A: GivenMean(μ)=270standard deviation(σ)=75

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.