The amount of coffee that people drink per day is normally distributed with a mean of 16 ounces and a standard deviation of 5.5 ounces. 35 randomly selected people are surveyed. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N b. What is the distribution of ? T - N c. What is the probability that one randomly selected person drinks between 15.7 and 16.1 ounces of coffee per day?

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

A: For a random variable X, the z-score is Z=X-μσwhere μ=population mean            σ=population…

Q: The Bank of Connecticut issues Visa and MasterCard credit cards. It is estimated that the balances…

A: Given: μ=830σ=260

Q: A data set is formed by recording the sums in 400 rolls of a pair of a dice. A second data set is…

A: Standard deviation:The standard deviation indicates by how much each observation differs from a…

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

A: Note: Please repost part d as i can answer only 3 subparts as per my policy. Given data,μ=1252σ=129

Q: A pharmaceutical company claims that a drug is effective in treating 90% of people having severe…

A: It is given that the random variable follows a binomial distribution with n=6 and p=0.9.

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

A:

Q: b. For a sample of engineers, the mean salary is $95,000 with a standard deviation of S30,000. The…

A: Given data: The mean of salary is m = $95000. The standard deviation is σ = $30000. The median…

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

A:

Q: In a distribution exactly normal, 7% of the items are under 35 and 89% are under 63. What are the…

A:

Q: a. How many standard deviations away from the mean is a beetle with mandible length of .44 mm? b.…

A: A z-score is known as the standard score that determines how much the data point deviates from the…

Q: The amount of soda in a randomly selected bottle varies according to a normal distribution with mean…

A: From the given information,   Mean = 7 Standard deviation = 8   The objective is to find the…

Q: In order to set rates, an insurance company is trying to estimate the number of sick days that full…

A: Given :Population standard deviation = 2.8 daysCompany wants to be 95% confident that the true mean…

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

A: GivenMean(μ)=1252standard deviation(σ)=129

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

A: Hello there! there are more than three subparts in the question. According to our policies we cannot…

Q: The Average teachers salary is $57,337. The distribution is normal with a standard deviation with…

A: Given, μ=57337σ=7500 Let X be the amount teacher makes per year. The required probability that a…

Q: Note: For any part below, if it cannot be answered, enter NA. A quality control company was hired to…

A: As per our guidelines we are suppose to answer only three subparts GivenMean(μ)=99.88standard…

Q: The Bank of Connecticut issues Visa and MasterCard credit cards. It is estimated that the balances…

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

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

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: For a measure of  body weight, converted to z or standard scores, what is the probability of having…

A: Solution For standard normal distribution, Mean=0  & standard deviation = 1. Find:

Q: The manager of a computer retails store is concerned that his suppliers have been giving him laptop…

A:

Q: A consumer survey indicates that the average household spends μ = $155 on groceries each week. The…

A: (a) Obtain the proportion of the population spends more than $175 per week on groceries. The…

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

A:

Q: The weight of potato chips in a large-size bag is stated to be 20 ounces. The amount that the…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Given a standardized normal distrubtion (with a mean of 0 and a standard deviation of 1, as in Table…

A: Standard normal distribution:The standard normal distribution is a special case of normal…

Q: The amount of coffee that people drink per day is normally distributed with a mean of 14 ounces and…

A:

Q: In a large section of statistics class for the final exam are normally distributed, with a mean of…

A: Given: μ=72σ=9x~N(72,92)

Q: The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is…

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

Q: A group of science students plans to take an SRS of 25 days in the year to see what proportion of…

A: Given that the students plans to take a SRS (simple random sample) of 25 days in the year where 41%…

Q: A physical fitness association is including the mile run in its secondary-school fitness test. The…

A:

Q: 1. A biologist found the wingspan of a group of monarch butterflies to be normally distributed, with…

A: Given: Mean= 52.2mm Standard deviation=2.3mm. We standard normal deviation.

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

A: GivenMean(μ)=1252standard deviation(σ)=129

Q: ed for évents held at City- Community theatre are believed to be normally distributed with a mean of…

A: Given data, μ=12,000σ=1000

Q: If it is known that the mean time between eruptions at Old Faithful is 96 minutes with a standard…

A: Given that standard deviation of 12 minutes

Q: An executive drives from her home to her office in the city. The driving times are normally…

A: Given, Driving time normally distributed with mean 35 and standard deviation 8 minutes.

Q: The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is…

A: We know that If X follows normal distribution with mean μ and standard deviation σ, then  Z=X-μσ…

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

A:

Q: an gas mileage for a hybrid car is 56 miles per gallon. Suppose that the gasoline mileage is…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: The Greenville Power Authority states that the mean monthly energy bill for their customers is $228…

A: Determine between what two values do we expect 99.7% of energy bill’s to fall. The two values of the…

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

A:

Q: The amount of soda in a randomly selected bottle varies according to a normal distribution with mean…

A: Let x be the amount of soda in a randomly selected bottle varies which follows normal distribution…

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

A:

Q: The amount of cereal in a carton is listed as 18 ounces. The cartons are filled by a machine, and…

A:

Q: The average production cost for major movies is 58 million dollars and the standard deviation is 21…

A: Solution

Q: A technical assistance service with electronic equipment has that its service time is normally…

A: Given,mean(μ)=80standard deviation(σ)=25

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

A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…

Q: c. What is the probability that exactly ten of the 45 luxury cars sold are silver? d. What is the…

A: It is given that n=45 and p=0.191.

Q: The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is…

A: Let X is the gas mileage for a hybrid car. X~Normalμ=57,σ2=3.52

Q: The average production cost for major movies is 57 million dollars and the standard deviation is 18…

A:

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.