The average daily room charge for a semi-private hospital room in a nonprofit hospital in Wisconsin was $2,080. A random sample of 40 other states showed an average charge of $1,928 with a standard deviation of $680. The State Journal wrote an article stating that Wisconsin hospital rooms were higher than other states average costs. Is the journal statistically correct in their statement? Determine if The State Journal is correct in their statement using the test statistic at a 5% level of significance.

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

A: The 27th percentile for the number of chocolate chips in an​ 18-ounce bag of Chips​ Ahoy! cookies is…

Q: A national computer retailer believes that the average sales are greater for salespersons with a…

A: Given Let sample 1 denote salespersons with a degree. Let sample 2 denote salespersons without a…

Q: Six people were asked to determine the amount of money they were carrying, to the nearest dollar.…

A: Mean: Mean is a measure of central location that can be calculated by taking the ratio of sum of all…

Q: Bigfoot Field Researchers Organization maintains a database of bigfoot/sasquatch sightings and…

A: From the given information we find the solution.

Q: In its Fuel Economy Guide for 2016 model vehicles, the Environmental Protection Agency provides data…

A: The Normal distribution:A continuous random variable X is said to follow normal distribution with…

Q: 5. Suppose that it takes a nurse at the Chimney Rock Hospital in North Carolina on average 13.7…

A: Given: Mean μ=13.7 minutes Standard deviation σ=3.4

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: Students at a major university are complaining of a serious housing crunch. They complain that many…

A: The objective of the question is to find the percentage of commute distances that lie within certain…

Q: An online statistics professor recommends that students plan to spend approximately 15 hours per…

A: Given data,Mean (µ) = 15 hours Standard deviation (σ) =2.6 hours

Q: Students at a major university are complaining of a serious housing crunch. They complain that many…

A: Given information: Mean=μ=18Standard deviation=σ=3.9 Chebyshev's theorem: At least 75% of the…

Q: Suppose that a customer is purchasing a car. He conducts an experiment in which he puts 10 gallons…

A: Sample size n=15 The sample data are as follows: Car 1   Car 2   235 275 212 321 266 237 155…

Q: A college has 220 full-time employees that are currently covered under the school's health care…

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

Q: We are interested in whether children’s educational computer software costs less, on average, than…

A: a) In this study, the interest is whether children’s educational computer software costs less, on…

Q: Students at a major university are complaining of a serious housing crunch. They complain that many…

A: a. Consider that a random variable X has expected value μ and standard deviation, σ. Now, according…

Q: Calculate the sample estimate of the standard error of the mean. Show all work.    b. Construct a…

A: Given that Sample size n = 36 Sample mean = 6.8 Sample SD = 1.2 The critical value of t at 98%…

Q: the Champlain College pretends that average rent in Lennoxville for a 2 bedrooms apartment is $500.…

A: H0 : ? =500 H1 : ? ≠500 Population mean = ? = 500 Sample S.D = s =10 Sample size = n =41…

Q: The population standard deviations are unknown but assumed to be equal. At the 0.010 significance…

A: Let  be the population means for daily expenses for sales and audit respectively.Given that,Sample…

Q: i. form z or tar where df is the degrees of freedom. Round your answer to two decimal places.) State…

A: Mechanical Engineer n1 = 50x1 = 46300s1 = 3450 Electrical Engineern2 = 58x2 = 46800s2 = 4230…

Q: A local supermarket spent $250,000 remodeling. Prior to remodeling, the average daily receipts were…

A: From the provided information, Sample size (n) = 18 Sample mean (x̅) = $59800 Standard deviation (s)…

Q: Brew sells a wide variety of outdoor equipment and clothing. The company sells both through mail…

A: Given:n1 = 11 = 67.50s1 = 23.75n2 = 7 = 81.60s2 = 23.25Formula Used:

Q: respectively. Their standard deviations were $3450 and $4230, respectively. Conduct ypothesis test…

A: Mechanical Engineer n1 = 50 x1 = 46300 s1 = 3450 Electrical Engineer n2 = 58 x2 = 46800 s2 = 4230

Q: In a national survey, middle school students report spending 3.1 hours per week on homework. Mr.…

A: n=24, x¯=3.4, s=1.9

Q: Dover Motors is a car dealership that sells new and used cars. Suppose they sold 140 used cars…

A: Given that mean is 10325 and standard deviation is 2880. X~N(10325,2880) Sample size is n= 60 then…

Q: a. The standard error of the mean is (Round to two decimal places as needed.) b. The probability…

A: It is given that  Mean, μ = 1850 Standard deviation, σ = 510 Sample size, n = 30 Z-Score, Z = ( M -…

Q: The Federal Trade Commission wants to estimate the average amount of Pepsi that is placed in 2-liter…

A:

Q: 2. The district superintendent of Orange County schools believes that the second graders in her…

A: Given,sample size(n)=44sample mean(x¯)=64population standard deviation(σ)=12and α=0.01

Q: 1. Perform a Two-Way ANOVA using the dataset (Sheet name: Prosthetic). Copy the result of the…

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

Q: Kathy and Linda both accepted new jobs at different companies. Kathy's starting salary is $31,500…

A: The z-score is defined as follows:

Q: The mean work week for engineers in start-up companies is claimed to be about 60 hours with a…

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

Q: A national grocer's magazine reports the typical shopper spends 11 minutes in line waiting to check…

A: The question is about hypo. testing Given : Randomly selected no. of shoppers ( n ) = 21 Sample mean…

Q: Carlos and Devon both accepted new jobs at different companies. Carlos's starting salary is $36,000…

A: Carlos's starting salary is $36000Devon's starting salary is $33000Carlos's company offers…

Q: What is the Sample Skewness for the following numbers: mean of 86.67 , median of 112, and standard…

A:

Q: Trent Capital Management has 240 full-time employees who are currently covered under the company's…

A: Pet X be the trent capital management n=30,σ=575=standard deviation, μ=2080=mean

Q: Eddie Clauer sells a wide variety of outdoor equipment and clothing. The company sells both through…

A: The 90% confidence of the diffeence of population mean [$-37.156 , $0.756] #Rounded to 3 decimal…

Q: national computer retailer believes that the average sales are greater for salespersons with a…

A: Given n1=35 n2=32 S1=468 S2=642

Q: In a data set of 190 ratings, there was a mean rating of 6.82 with a standard deviation of 2.06. Use…

A:

Q: In its Fuel Economy Guide for 2016 model vehicles, the Environmental Protection Agency gives data on…

A: From the given information, mean is 23 and standard deviation is 4.9.The Z score is,

Q: K.Brew sells a wide variety of outdoor equipment and clothing.  The company sells both through mail…

A: Given:n1 = 18 = 81.30s1 = 16.25n2 = 9 = 67s2 = 15.25Formula Used:

Q: Carlos and Devon both accepted new jobs at different companies. Carlos's starting salary is $32,000…

A: The Z-scores can be calculated using the given formula.

Q: uppose Michigan State University's Collegiate Employment Institute found that starting salaries for…

A:

Q: Salvatore, as the director of a regional bank, is concerned about the wait times of customers at the…

A: 48 patrons at each branch selected, For each branch means and standard deviation mentioned. We have…

Q: 4. The average height of young adult males has a normal distribution with standard deviation of 2.5…

A:

Q: c. Analyzing delivery records for 18 customers from "Jalwa" tailoring company, you found their mean…

A: Hypothesis test used estimate whether there is any mean significant difference between the sample…