Citizens use an average of 650 pounds of paper a year. Suppose that the distribution is normal with a population standard deviation of 153.5 pounds.  Suppose you take a random sample of 25 Citizens. What is the probability that the mean pounds of paper used in a year are between 500 and 700 pounds

Q: The number of miles a certain brand of tires lasts is normally distributed with a mean of 30,000…

A: The mean of the certain brand of tires lasts is 30,000 miles. The standard deviation of the certain…

Q: A manufacturer produces widgets that are packaged in boxes of 200. The probability of a widget being…

A: It is given that the number of packaged widget boxes (n) is 200, and the probability, number of…

Q: Given a normal population whose mean is 665 and whose standard deviation is 24, find each of the…

A: The following information has been given: The population mean is μ=665. The population standard…

Q: The mean admission charge for a movie is RM5.80. The distribution of movie admission charges is…

A: Given that  Mean = 5.80 Std = 0.8 a) p(x < 3.50 ) = p(x - mu/s < 3.50-5.8/0.8)…

Q: The average salary for a Queen College full professor is $85,900. If the average salaries are…

A: It is given that mean and standard deviation are $85,900 and $11,000, respectively.The random…

Q: The mean weight of junior high school students is µ = 45 kg. If a random sample of 90 students is…

A: Given: μ=45n=90σ=6

Q: A packet of chocolate bar's content is regularly distributed, with a mean of 250 grammes and a…

A:

Q: The world's smallest mammals: kitti's hog-nosed bat, with a mean weight of 1.5 grams and a standard…

A: It is given that mean and standard deviation are 1.5 and 0.25, respectively.

Q: What is the probability that a randomly selected individual with an MBA degree will get a starting…

A: Given:  Let x be the starting salary of individual from normal distribution with mean u= $40000 and…

Q: A town has 500 real estate agents. The mean value of the properties sold in a year by these agents…

A: Note: (1). According to Bartleby expert guidelines, we can answer only first question with their…

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

A: The normal distribution is the most useful theoretical distribution for continuous variables.…

Q: There are 225 dogs that participated at the National Dog Show that weigh an average of 5 kilos, with…

A:

Q: The average test score in a certain statistics class was 74 with a standard deviation of 8. there…

A:

Q: The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 405…

A: As per the guidelines we are allowed to solve maximum of 3 subparts If you need help with other…

Q: The grades of a statistics midterm are normally distributed with a mean of 70 and a standard…

A:

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

A: Given information:

Q: A college food service buys frozen fish in boxes labeled 10 lbs. The true average weight of the…

A: The true average weight of the boxes is 8 pounds with a standard deviation of 2 pounds.  If the…

Q: The scores of a freshman chemistry class in college have a mean of 70 and a standard deviation of 12…

A: C is the correct option. The scores of a freshman chemistry class in college have a mean of 70 and a…

Q: A banks loan officer rates application for credit. The ratings are normally distributed with a mean…

A:

Q: Full-time Ph.D. students receive an average of $12,837 per year. If the average salaries are…

A: Given information- Population mean, µ = $12,837 per year Population standard deviation, σ = $1500…

Q: The population standard deviation and sample standard deviation are of the same value if the…

A: We want to tell you above statement is true or false

Q: residential real estate in new york rents for an average of $44 per square foot, for a certain…

A:

Q: A&W offers a meal deal if you get burgers and fries. Within North America 65% of A&W customers opt…

A:

Q: Given a normal population whose mean is 50 and whose standard deviation is 5. Find the probability…

A: Let X be the random variable. It is given that X is normally distributed with mean 50 and standard…

Q: The Economic Policy Institute periodically issues reports on worker’s wages. The institute reported…

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

Q: Researchers doing a study comparing time spent on social media and time spent on studying randomly…

A:

Q: According to a Survey, households in the city X spend an average of $24 per week on their leisure…

A: Given that  μ = 24 , ?2 = 36 , n=100 Note: According to bartleby experts question answers guidelines…

Q: A firm's marketing manager believes that the total sales for the firm next year can be modeled using…

A:

Q: me sources report that the weights of full-term newborn babies in a certain town have a mean of 7…

A: Given:  X = Weight of new born babies  X follows normal distribution with mean = 7 pounds and…

Q: Dayspring Electric states that the time it will take to complete an electrical job at Fort Huachuca…

A: Let X be random variable of time taken to complete an electrical job X~Normal(14,22)   a)To Find:…

Q: The lifetime of a particular brand of AA batteries follows a normal distribution. The mean lifetime…

A: Correct answer is d. 0.8944

Q: A senior high student commutes daily from home to school. The average time for a one way trip is 20…

A: Given The data is as follows: μ=20σ=4

Q: In a large town, adults’ height (in cm) follows a normal distribution with a mean of 165 cm and a…

A: Given: X = height X follows Normal distribution  Mean of X = 165 cm Standard deviation of X = 10cm n…

Q: John drives to work each morning and the trip takes an average of µ = 38 minutes. The distribution…

A: From the given information, Consider, X be a random variable which represents driving time that…

Q: In a certain barangay, LGU distributes "ayuda" benefits to each family with a mean of 3,200 pesos…

A: Let X: ayuda benefits E(x)=3200 n=32 standard deviation of 850 pesos.

Q: The average salary for a civil engineering major is $75,000 with a standard deviation of $10,000. In…

A:

Q: A manufacturer produces widgets that are packaged in boxes of 200. The probability of a widget being…

A: Some characteristics of binomial distribution:Each trial has exactly two possible outcomes. In this…

Q: The time required to play a new video game is normally distributed. If the mean time to play this…

A: Let time taken to complete the video game is: X Therefore: X~Nμ=23.5, σ=1.7

Q: A set of scores in Statistics examination is approximately normally distributed with a mean of 74…

A: Given: The value of mean is, μ=74. The value of standard deviation is, σ=7.9. The objective is to…

Q: Camio Electronics Corporation makes electric diodes It is known that the standard deviation of the…

A: Central limit theorem: The central limit theorem states that the sampling distribution of the sample…

Q: In a Math test, the mean score is 45 and the standard deviation is 5. Assuming the scores are…

A:

Q: (a) What would be the standard deviation of the sample mean? (b) What is the probability that the…

A:

Q: FIND THE STANDARD DEVIATION The number of items sold per day at a retail store, with its…

A: We have the probability distribution

Q: Heneroso & Co. distributes Christmas baskets to each employee with a mean cost of 2,500 pesos and a…

A:

Q: The salaries ofelementary school teachers are normally distributed with a mean of $32,000 and a…

A:

Q: The lifetime of a particular brand of AA batteries follows a normal distribution. The mean lifetime…

A: Correct answer is d. 0.0606

Q: Suppose 150 people take a quiz, and say the mean score was a 100 out of 200 points, with a standard…

A: Given data:     The given mean score is: μ=100. The standard deviation is: σ=40. The number of…

Q: "An electrical firm manufactures light bulbs that have a length of life that is approximately…

A: Given data,Mean μ=843sd    σ=35n=31Find mean of sampling distribution?

Q: A Filipino household watched an average of 25 hours of television per week witha standard deviation…

A:

Q: A population has a standard deviation of 16. If a sample of size 64 is selected from this…

A: Correct answer is (B) 0.6826

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.