The average price of a college math textbook is $165 and the standard deviation is $29. Suppose that 16 textbooks are randomly chosen. Round all answers to 4 decimal places where possible. What is the distribution of ¯x? ¯x ~ N(         ?   ,    ?    ) For the group of 16, find the probability that the average price is between $161 and $171? Find the third quartile for the average textbook price for this sample size? $ (round to the nearest cent)

Q: venty-five Americans were surveyed to determine the number of hours they spend watching television…

A: Given :  Sample Size, n = 75.0 Sample Mean, x̄ = 13.0 standard deviation,…

Q: For the group of 12 movies, find the probability that the average production cost is between 67 and…

A: Given :  Let , X→N(μ=68 , σ=23) , n=12 By using central limit theorem , The sampling distribution of…

Q: Normal, with mean 70 inches and standard deviation 8 inches. ) If you choose one student at random,…

A: We have given that.   X~N( μ , ?^2 )   μ =6 , ? =2.4  , n= 25   Z-score =( x - μ )/?

Q: The average production cost for major movies is 69 million dollars and the standard deviation is 18…

A: Mean = 69 Standard deviation = 18 Sample size = 39

Q: The scores of students on the SAT college entrance examinations at a certain high school had a…

A: Solution

Q: (a) What is the probability that a single student randomly chosen from all those taking the test…

A: Let , X→N(μ=538.6 , σ=27.2) , n=30 Our aim is to find the following :  a) b) ​​​​​​​ c)  Z-score…

Q: CNNBC recently reported that the mean annual cost of auto insurance is 993 dollars. Assume the…

A: Given Mean annual cost of auto insurance=μ=$993 Standard deviation =σ=$275 Let X be cost of auto…

Q: 3. In a Math test, the mean score is 45 and the standard deviation is 4. Assuming normality, what is…

A: Since you have submitted two questions, we'll answer the first question. For the second question…

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: Mr Stat, our local statistics teacher conducted a study of his students. He recorded the time a…

A:

Q: The average price of a college math textbook is $179 and the standard deviation is $21. Suppose that…

A: Given The average price of a college math textbook is $179 The standard deviation is $21 If 15…

Q: The scores of students on the SAT college entrance examinations at a certain high school had a…

A: Thank you for posting the question. As your question has more than 3 parts, as per the policy, we…

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

A:

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: Suppose that the number of Facebook friends users have is normally distributed with a mean of 146…

A: Mean(µ) = 146Standard deviations (σ) = 44 X ~ N (µ, σ )= N (146, 44) n = 47 Mean= µx̅ = µ = 146 σx̅…

Q: CNNBC recently reported that the mean annual cost of auto insurance is 956 dollars. Assume the…

A:

Q: The heights of preschool children as reported by the Department of Statistics is approximately…

A: We have given that.   X~N( μ , ?^2 )   μ =39 , ? = 2   Z-score =( x - μ )/?   Note:-According to…

Q: CNNBC recently reported that the mean annual cost of auto insurance is 1002 dollars. Assume the…

A:

Q: Suppose that the average number of Facebook friends users have is normally distributed with a mean…

A: As per our guidelines we can solve first three sub part of question and rest can be reposted.…

Q: ean of 2.5 grams and a standard deviation of 0.03 grams. What is the probability that a randomly…

A: Let X be the random variable from normal distribution with mean (μ) = 2.5 grams and standard…

Q: Suppose that the number of Facebook friends users have is normally distributed with a mean of 132…

A: Let X be the random variable from Normal distribution with mean (µ) = 128, standard deviation (σ) =…

Q: A waitress believes the distribution of her tips has a model that is slightly skewed to the right​,…

A:

Q: Blood pressure is distribued Normally, with a mean of 85 mm and a standard deviation of 20 mm. As a…

A: Given,mean(μ)=85standard deviation(σ)=20sample size(n)=100

Q: Suppose the true proportion of voters in the county who support a specific candidate is 0.37.…

A: Given,   Proportion (p) = 0.37 Sample size (n) = 148   The objective is to find the mean and…

Q: CNNBC recently reported that the mean annual cost of auto insurance is 1031 dollars. Assume the…

A: As per  our guidelines we are suppose to answer three sub parts . Given,sample…

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

A:

Q: According to the National Institute of Health, about 37% of high school seniors have vaped in the…

A: The Sampling Distribution of the Sample Proportion :  If repeated random samples of a given size n…

Q: CNNBC recently reported that the mean annual cost of auto insurance is 1042 dollars. Assume the…

A: As per bartleby guideline expert have to answer first three subpart only dear student please upload…

Q: (a) What is the probability that a single student randomly chosen from all those taking the test…

A: Z table has used to find the probability.

Q: CNNBC recently reported that the mean annual cost of auto insurance is 991 dollars. Assume the…

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

Q: Consider the experiment of tossing a fair coin three times and observing the number of heads that…

A: If a fair coin is tossed thrice then the sample space is S = {HHH, HHT, HTH, THH, HTT, THT, TTH,…

Q: oan’s finishing time for the Bolder Boulder 10K race was 1.80 standard deviations faster than the…

A: Given: Joan's finishing time was 1.80 S.D. faster than the average time.

Q: For a single randomly selected movie, find the probability that this movie's production cost is…

A: Let X denotes the production cost for major movies. Given that X follows N(mean = 58, SD = 20) Then…

Q: In a job fair, 5,000 applicants applied for a job. Their mean age was found to be 28 with a standard…

A:

Q: If 64 applications are randomly selected, what is the probability that the mean credit rating of…

A: Let M denote the mean credit ratimg of sample of size n = 64. Then M follows N(mean = 200, SD =…

Q: Patagonia is an outdoor American clothing and gear company and was founded in 1973. The average…

A: Given, The average price of Patagonia jacket is $202 and standard deviation $21. Suppose that 6…

Q: CNNBC recently reported that the mean annual cost of auto insurance is 968 dollars. Assume the…

A: Sampling distribution of x¯ : Suppose simple random sample of size ‘n’ is drawn form any population…

Q: CNNBC recently reported that the mean annual cost of auto insurance is 992 dollars. Assume the…

A: As per our guidelines we are suppose to do only one question1)GivenMean(μ)=992standard…

Q: The average production cost for major movies is 62 million dollars and the standard deviation is 23…

A: Given: μ=62σ=23 1. The distribution of X is X~N(μ, σ2). Thus, the distribution of X is X~N(62, 232)…

Q: The distribution ages for students at the state college is positively skewed with a mean of ?= 21.5…

A: From the provided information, Mean (µ) = 21.5 Standard deviation (σ) = 3 Let X be a random variable…

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

A: Solution

Q: CNNBC recently reported that the mean annual cost of auto insurance is 1050 dollars. Assume the…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: The average production cost for major movies is 67 million dollars and the standard deviation is 19…

A: The mean and standard deviation of major movie production cost is 67 million dollars and 19 million…

Q: CNNBC recently reported that the mean annual cost of auto insurance is 977 dollars. Assume the…

A: GivenMean(μ)=977standard deviation(σ)=252sample size(n)=36

Q: A racing car consumes a mean of 106 gallons of gas per race with a standard deviation of 6 gallons.…

A: It is given that the mean and standard deviation are 106 and 6. The sample size n is 33.By using…

Q: The average production cost for major movies is 57 million dollars and the standard deviation is 22…

A:

Q: CNNBC recently reported that the mean annual cost of auto insurance is 1031 dollars. Assume the…

A: Given,mean(μ)=1031standard deviation(σ)=204sample size(n)=39