The weight of grapefruits produced by an orchard is normally distributed, with a mean weight (μ) of 450g and a standard deviation of 50g. We randomly select a sample of 120 grapefruits from the orchard. A - Compute the standard error.  B-  What is the probability that the average weight of the grapefruits in the sample will lie between 445g and 460g? Interpret your answer.

Q: The average GPA at the University of North Carolina is 3.2, with a standard deviation of 0.3. Assume…

A: Given that.   X~N( μ , ?^2 )   μ=3.2     , ?=0.3   Z-score =( x - μ )/?

Q: e number of milligrams (mg) of cholesterol in a cup of a certain brand of ice cream is 660 mg, the…

A: Given,   μ=660σ=35

Q: The weights of newborn for hippopotami is approximately Normal, with a mean of 86 pounds and a…

A: Given,mean(μ)=86standard deviation(σ)=10

Q: Traveling between two campuses of a university in a city via shuttle bus takes, on average, 31…

A: P(X>30)=1-Pz<30-311045=1-P(z<-0.67)=1-0.2514=0.7486

Q: Traveling between two campuses of a university in a city via shuttle bus takes, on average, 31…

A: The given data are: Mean, μ=31 minutes Standard deviation, σ=5 minutes n=40 For sample average, z is…

Q: A student finds that the average price of a movie ticket in Washington is $12.25 and that the…

A: From the provided information, Mean (µ) = $12.25 Standard deviation (σ) = $2 Let X be a random…

Q: The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally…

A: Given information- Mean of chocolate chips, μ = 1252 Standard deviation, σ = 129 a) Probability that…

Q: It is believed that first-year salaries for newly qualified accountants follow a normal distribution…

A: Here, n = 16

Q: A certain machine makes electrical resistors having a mean resistance of 40 ohm and a standard…

A: Given: The mean resistance of electrical resistors is μ=40 ohm. The standard deviation is σ=4 ohm.…

Q: Canadians usually spent around $940 on Christmas presents in 2005. Assume the standard deviation is…

A: Given: Mean=μ=940 and standard deviation=σ=210. Sample size=n=70.

Q: At the Heinz ketchup factory, the amounts which go into bottles of ketchup are normally distributed…

A:

Q: In response to the increasing weight of airline passengers, the Federal Aviation Administration in…

A:

Q: The weights of adult male rhesus monkeys are normally distributed with a mean of 15 pounds and a…

A: From the provided information, Mean (µ) = 15 pounds Standard deviation (σ) = 3 pounds Let X be a…

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 average number of milligrams (mg) of sodium in a certain brand of low-salt microwave frozen…

A: Solution:

Q: The average price of a kilogram of ham is ₱1,300. Assume that the standard deviation is ₱150. If a…

A: Given that

Q: A candy company has calibrated their machines to fill each bag of candy to an average weight of 500…

A: Let X=the weight of each candy bag Given that X has mean=500 and standard deviation=5 The population…

Q: Traveling between University of Santo Tomas and Rizal Park, Manila via shuttle bus takes, on…

A: Solution: Let X be the transport time. From the given information, X has mean µ=28 minutes and a…

Q: The average daily jail population in the United States is 706,242. If the distribution is normal and…

A: We are authorised to answer one question at a time since you have not mentioned which one you are…

Q: Fraveling between two campuses of a university in a city via shuttle bus takes, on average, 28…

A: We want to find the probability  P(xbar>30)

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 diameter of the dot produced by a printer is normally distributed with a mean diameter of 0.002…

A:

Q: A candy company has calibrated their machines to fill each bag of candy to an average weight of 500…

A:

Q: The weights of newborn for hippopotami is approximately Normal, with a mean of 85 pounds and a…

A: Given  Mean, μ=85 pounds and standard deviation, σ=12 pounds

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

A:

Q: a) What is the probability a randomly selected student will read more than 88 WPM?  b)What is the…

A: Answer: Given that the reading speed of second grade students is approximately normal mean = μ = 83…

Q: The mean output of hamburger patty of the Southern Valley Meat Corporation is 120,000 pounds daily,…

A: Given,mean(μ)=120,000standard deviation(σ)=40,000

Q: he weight of the package is normally distributed with a mean of 650 g and a standard deviation of 42…

A: Given that  The weight of the package is normally distributed with a mean of 650 g and a standard…

Q: The average price of a kilogram of ham is 1,300. Assume that the standard deviation is 150. If a…

A: given  average =μ= 1300 standard deviation=σ= 150 random sample= n = 30

Q: The average smartphone user used 606 megabytes of data per month. Assume the standard deviation of…

A: Given Data Population Mean,μ = 606 Population Standard Deviation,σ = 240 sample…

Q: In a biomedical research study, it was determined that the survival time, in weeks, of an animal…

A:

Q: A livestock company reports that the mean weight of a group of young steers is 1350 pounds with a…

A:

Q: The diameter of the dot produced by a printer is normally distributed with a mean diameter of 0.002…

A: Given, μ=0.002σ=0.0004 X be a random variable that belongs the diameter of the dot produced by…

Q: The average price of a kilogram of ham is P1,300. Assume that the standard deviation is P150. If a…

A:

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

A:

Q: The weight of high school football players is normally distributed with a mean of 195 pounds and a…

A: Given, population mean = 195 standard deviation = 225 x = 242 P(x >242 ) = 1 - P(x < 242) = 1…

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

A: It is given that the mean is 100 and the standard deviation is 15.

Q: A 12 oz can of soda has a mean volume of 12 oz ,with a standard deviation of .25 oz. How common are…

A: Given,mean(μ)=12 ozstandard deviation(σ)=0.25 oz

Q: According to a study done by De Anza students, the height for Asian adult males is normally…

A: Given Data Population Mean,μ = 66.0 Population Standard Deviation,σ = 2.5

Q: A. The average cost per household of owning a brand new car is 5,000. Suppose that we randomly…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

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: The annual per capita consumption of bottled water was 33.6 gallons. Assume that the per capita…

A:

Q: In a particular country, the height measurements of ten-year-old children are approximately normally…

A:

Q: What percentage of the class has a test score between 68 and 82? Approximately how many students…

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

Q: Brooke Henderson of the LPGA, who just won her second major last weekend, layed a round of golf and…

A: Let X be the random variable from normal distribution with mean (μ) = 21.4 and standard deviation…

Q: The weights of newborn babies are distributed normally, with a mean of approximately 115 oz and a…

A:

Q: The weights of adult male rhesus monkeys are normally distributed with a mean of 15 pounds and a…

A: Note :-As per our policy, we can answer only three sub-parts, make a new request for other sub-parts…

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.