last year the average age of students attending fremont college was 21.3 years. this semester, in order to meet the needs of the older students, more classes were scheduled during evening, and weekend hours. has the average age of the students at freemont college increased this semester? to answer this question, a random sample of 64 students enrolled this semester was studied. the average age of these students was 22.1 years with sample standard deviation of 2.7 years. Test the hypothesis that the average age of students this semester is higher than it was last year. Test at 0.01 level of significance .    FInd the following:  Computed Value:  Tabular Value:  Conclusion:

Q: Do consumers spend more on a trip to Target compared to Walmart? Suppose researchers interested in…

A: Given Let sample 1 be of target customers. Sample size, n1=80 Sample mean, x¯1=$53 Sample sd, s1=$19…

Q: The average length of time, per week, that students at a certain university spend on homework is…

A: Let X be the students thant spend the average length of time (per week) on homework. Also,…

Q: Es On their website, a property management company states that the mean monthly rent for apartments…

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

Q: es data from before the roll out.  Each sales person when they closed a sale had an average contract…

A: The one-sample z-test is a statistical technique that used to define whether a sample of data could…

Q: Walleyes found in lake Windermere have a mean length of 18.4 inches with a standard deviation of 4.2…

A:

Q: An online stock trading company makes part of their revenue from clients when the clients trade…

A: We have given that  Sample size n=83 , sample mean = 90 Standard deviation = 15  Population mean =…

Q: According to a recent survey, the population distribution of number of years of  education for…

A: What is the standard error of mean?

Q: In a random sample of 23 private school teachers in queens county the average teaching experience is…

A:

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: Given information Hypothesized mean µ = 19 inches Sample size (n) = 49 Mean x̅  = 18.5 inches…

Q: A researcher wants to examine whether VCU students send and receive fewer texts per day than the…

A:

Q: A local police department made an effort to determine the average speed of automobiles travelling…

A:

Q: The former manager of the coffee shop in a local bookstore claimed that the mean daily sales were…

A: Givensample size(n)=11Mean(x)=2956.14standard deviation(s)=370α=0.01

Q: Finn, a tourism expert, is researching the price of burgers on Highway 1. He randomly selected 18…

A: Given, Finn, a tourism expert, is researching the price of burgers on Highway 1. He randomly…

Q: The admitting office at Sisters of Mercy Hospital wants to be able to inform patients of the average…

A: The objective of this question is to conduct a hypothesis test to determine if there is evidence…

Q: In a study entitled How Undergraduate Students Use Credit Cards, it was reported that undergraduate…

A: Given that, sample size n=100 sample mean credit card balance x¯=3506 Population standard deviation…

Q: The admitting office at Sisters of Mercy Hospital wants to be able to inform patients of the average…

A: The objective of this question is to conduct a hypothesis test to determine if there is evidence…

Q: company has surveyed 40 customers who shop on a particular online commerce platform and the company…

A: Given that  Mean = 23 , Standard deviation = 14

Q: You may need to use the appropriate appendix table or technology to answer this question. According…

A: Givensample size(n)=38Mean(x)=3.6standard deviation(s)=2significance level(α)=0.05

Q: You may need to use the appropriate technology to answer this question. Suppose Michigan State…

A: Givensample size(n)=100Mean(x)=51286standard deviation(s)=5200α=0.01

Q: According to a new study by ABC, the average time spent by young adults ages 20 to 25 in using their…

A: Given information Level of significance=0.10, n=sample size=30, sample mean x̄=7.8, s=sample…

Q: If the standard deviation of sample A  is 5 and the standard deviation of sample B  is 12, what is…

A:

Q: According to the Bureau of Labor Statistics, the mean salary for registered nurses in Kentucky was…

A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…

Q: The average salary of North Carolina is reported to be $50,781. After completing a survey of 120…

A: Given,   Sample size = 120 Sample mean = 51203 Sample standard deviation = 2409   Set up the null…

Q: According to data from the 2010 United States Census, 64.2% of Americans in Susanville, CA were…

A: 64.2% of Americans in Susanville, CA were male, p = 0.642 Sample size, n = 100 Among the sample, 54…

Q: Two samples of 103 and 80 students are taken with a view to find out their average monthly…

A:

Q: The average gasoline price of one of the major oil companies has been $2.20 per gallon.because of…

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want…

Q: In general, train commuting time for VU students travelling to campus from home is normally…

A: Given that :mean (μ)=52 Standard deviation (σ)=7 Let X be the random variable of the students who…

Q: An online stock trading company makes part of their revenue from clients when the clients trade…

A: sample mean (x̄)  = 82 population mean (µ) = 85 sample size (n) = 120 sample standard deviation (s)…

Q: Use .05 level of significance. Determine the validity of the researcher's claim.

A: Given that Sample size n = 75 Sample mean = 26 Population SD = 9 Level of significance = 0.05

Q: If it is known that a town with population 30,000 had 3,170 people who drive a Prius hybrid vehicle.…

A: Solution: The proportion of population who drive a Prius hybrid vehicle is From the given…

Q: At a certain university, the average cost of books was $390 per student last semester and the…

A: σ = 75claim : μ>390x¯ = 415n =55test value = ?

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

A: From the provided information, Mean (µ) = $40,000 Standard deviation (σ) = $5,000

Q: An economist was curious if the mean yearly amount of seafood consumed in Sweden is significantly…

A: Step 1: Identify the null and alternative hypothesis The researcher wants to determine whether the…

Q: You may need to use the appropriate technology to answer this question. The Insure.com website…

A: Solution

Q: According to the College Board, scores on the math section of the SAT Reasoning college entrance…

A: Given information, Mean =516 Standard deviation =116

Q: We are interested in seeing if there is a difference between how long women and men spend shopping…

A:

Q: Steve believes that his wife's cell phone battery does not last as long as his cell phone battery.…

A: The pooled variance is 28.2841.The degrees of freedom is,

Q: Chicago area doctors are concerned about their female patients' systolic blood pressure since an…

A: Given: μ = 135 σ = 7.5 n = 100

Q: A hypothesis regarding the weight of newborn infants at a community hospital is that the mean is 7.1…

A: Given n=7 X=6.1, 8.1, 9.1, 10.1, 7.1, 11.1, and 12.1

Q: Students preparing for comprehensive exams usually spend many hours studying. Suppose it is known…

A: Given data mean=41.3 standard deviation=6.8 n=72

Q: An industrial engineer is conducting a time study for a work element. The select time is 4.5…

A: