The average cost of tuition, room and board at small private liberal arts colleges is reported to be $8,500 per term, but a financial administrator believes that the average cost is higher. A study conducted using 350 small liberal arts colleges showed that the average cost per term is $8,745 with a standard deviation of $1,200. Let = 0.05. What is the test statistic for this test? Select one: a.1.76 b.-2.34 c.3.82 d.3.65 e.0.204

Q: A dpt store has a daily mean sales of $28,372.72. The standard deviation of sales is $2000. On…

A: Given: Daily μ=28372.72σ=2000 On Tuesday x=34885.21

Q: a successful basketball player has a height of 6 feet 9 inches, or 206 cm. Based on statistics from…

A: Given,           Z -score=4.45           A basket ball player has a height of  6 feet 9…

Q: Find the Absolute Quartile Deviation for the following data, In the dashed line put your…

A: Dispersion is a statistical term that describes the size of the distribution of values expected for…

Q: A college entrance exam company determined that a score of 21 on the mathematics portion of the exam…

A: From the provided information, Sample size (n) = 150 Sample mean (x̅) = 21.4 Sample standard…

Q: The operation manager at a tire manufacturing company believes the mean mileage of a tire is

A:

Q: In 1955, Life Magazine reported that the 27 year-old mother of three worked, on average, an 75 hour…

A: Given Information :  In 1955, Life Magazine reported that the 27 year-old mother of three worked, on…

Q: The 2000 U.S. Census also asked for each person's age. Suppose that a sample of 40o households taken…

A: Solution-: We have following table: Class Freq (fi) 0-20 32 21-40 16 41-60 13 61-80 10…

Q: Use the scenario below to answer the following 4 questions. Ron McKeman, a University of Arkansas…

A: Given Information: Sample size n=45 Sample mean x¯=16.55 Sample standard deviation s=3 Significance…

Q: John scored 60 in a quiz in Math for which the average score of the class was 50 with a standard…

A:

Q: The We Go Farther Tire Company advertises a tire that lasts for 80,000 miles. The mileage for the…

A:

Q: The year Ali graduated college, he got a job as an entry-level software engineer working for a firm…

A: Solution

Q: A manufacturer claims that a new snowmaking machine can save money for ski resort owners.  He states…

A:

Q: A car salesperson offers you a car at the price of $22,895. You look up the mean sales price for…

A: We have given that the random variable X that is sales price. Here, X = 22895 Mean = 21900 and…

Q: Dougal is filling out college applications that require either a SAT math score or ACT math score.…

A: Given Information: Dougal has an SAT math score of 610 and an ACT math score of 27. Mean SAT math…

Q: After examining a child at his​ 2-year checkup, the​ boy's pediatrician said that the​ z-score for…

A: The z score is given by Z = 1.31

Q: In their 25 games of the season, the college basketball team averaged 78 points per game with a…

A: Given data: Number of games of the season, n = 25. Mean score of the college basketball team, μ=78…

Q: Rochester, New York averages μ = 21.9 inches of snow for the month of December. The distribution of…

A: Consider X be a random variable which, follows normal distribution, indicates the pay off by the…

Q: The average McDonald's restaurant generates $2.4 million in sales each year with a standard…

A: Given that: Population mean, μ=2.4 Population standard deviation, σ=0.4 Sample size, n = 33…

Q: In designing a work desk, it is found that males have sitting knee heights with a mean of 21.2 in,…

A: From the provided information, Mean (µ) = 21.1 Standard deviation (σ) = 2.2

Q: The sizes of houses in Kenton County are normally distributed with a mean of 1369 square feet with a…

A: From the given information, the mean and standard deviation are 1,369 and 171.

Q: In a plant nursery, the owner thinks that the lengths of seedlings in a box sprayed with a new kind…

A: Given: n=80x¯=20μ0=26σ=10α=0.05

Q: Airline companies are interested in the consistency of the number of babies on each flight, so that…

A: Test for Variance: The χ2 Chi-Square test is used to test the significance difference between…

Q: he average expenditure on Valentine's Day was expected to be $100.89 (USA Today, February 13, 2006).…

A: Given that  he average expenditure on Valentine's Day was expected to be $100.89  Male   Female…

Q: The average price of homes sold in city Depecheville is $245,000. A sample of 144 homes sold in city…

A:

Q: A recent survey was conducted to compare the cost of solar energy to the cost of gas or electric…

A:

Q: qualifying score to join the cheer team?

A:

Q: According to a study conducted by NASA, the average breadth of an adult man's hand is 3.5 inches.*…

A: Formula for z score is as below :

Q: Kurtis is a statistician who claims that the average salary of an employee in the city of Yarmouth…

A: From the given information, the null and alternative hypotheses are: Null hypothesis: H0: μ ≤…

Q: The number of incoming students at two campuses of a midwestern university have historically been…

A: Given that the main campus incoming class has a mean of 3,916 and a standard deviation of 375.…

Q: . Sheldon owns a mango farm and the weight of his mangoes are normally distributed with an average…

A: here  N = 800 n = 50 μ = 200 gramσ = 15 grams

Q: The scores of students on an exam are normally distributed with a mean of 335 and a standard…

A: We have to find quartiles.

Q: The cold medicine Dozenal bears a label indicating the presence of 600 mg. of acetaminophen in each…

A: We want to test the hypothesis

Q: Runzheimer International publishes data on overseas business travel costs. It reports that the…

A: The standard deviation will be obtained as given below:

Q: An upscale women's clothing boutique in Laguna Beach, on average, has daily sales of $28,176.44. The…

A:

Q: A manager is interested in finding the average number of sales per day at a sporting goods store. If…

A: Obtain the sample size. The sample size is obtained below as follows: The formula of sample size is,…

Q: Recently, a random sample of 25–34 year olds was​ asked, "How much do you currently have in​…

A: Class Interval Frequency(f) Midpoint (x) f.x fx2 0-199 342 (0+199)/2= 99.5 34029 3385885.5…

Q: Vivino website, suppose the mean price for a bottle of red wine that scores 4.0 or higher on the…

A: Given: Sample mean x¯=30.15 Sample standard deviation (s) =  12 Sample size (n) = 59 Hypothesized…

Q: Suppose this average cost was based on a sample of 55 persons who had been involved in car crashes…

A:

Q: Many families in California are using backyard structures for home offices, art studios, andhobby…

A: Let us consider X be a random variable which denotes the cost of shingled backyard structure which…

Q: The scores of students on an exam are normally distributed with a mean of 403 and a standard…

A:

Q: An airline charges $25 for the first bag, $35 for the second bag.  54% have no checked luggage 34%…

A: The given information is that an airline charges $25 for the first bag, $35 for the second bag. 54%…

Q: The average expenditure on Valentine's Day was expected to be $100.89 (USA Today, February 13,…

A:

Q: Airline companies are interested in the consistency of the number of babies on each flight, so that…

A: Given n=23 sample standard deviation, s = 9 population standard deviation, σ = 6 and  α = 0.05

Q: 2. Alfred scored 82 in a quiz in English for which the average score of the class was 75 with a…

A: GivenAlfred scored 82 in a quiz in english with Mean(μ)=75standard deviation(σ)=10score 70 in a quiz…

Q: Kurtis is a statistician who claims that the average salary of an employee in the city of Yarmouth…

A: From the given information, the null and alternative hypotheses are: Null hypothesis: H0: μ ≤…

Q: In 1955, Life Magazine reported that the 25-year-old mother of three worked, on average, an 80 hour…

A: Claim : the mean work week has increased for women

Q: recent study found that 61 children who watched a commercial for potato chips featuring a celebrity…

A:

Q: sample of 25 cappuccinos shows a mean of 42.1 oz of espresso and a standard deviation of 0.38 oz. A…

A: Given: Sample size, n = 25 Sample mean,  = 42.1 Standard deviation, s = 0.38

Q: A learner has the following scores. an ACT composite score of 32 an SAT mathematics score of 760…

A: The following information has been given: The ACT composite score is X=32. The SAT mathematics score…

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.