IE students in University X taking Physical Ergonomics class were tasked to accomplish their Anthropometry Laboratory Exercise. They were able to get the heights of 1000 students with a mean of 174.5 cm. and standard deviation of 6.9 cm. Determine how many of the sample means fall below 172.0 cm considering that out of 200 random sample of students 25 were drawn from the population. 01

Q: A gardener knows from experience that sunflower seeds sprout and grow to an average height of 40…

A: Answer: From the given data,

Q: The manager at a local grocery store thinks customers might benefit from a self-checkout aisle…

A: The sample standard deviation for the accompanying sample of 30 grocery store customer wait times…

Q: Find the value of the test statistic. Enter your answer to two decimal places.

A: It is given that Population mean, μ = 6.3 Sample mean, x̄ = 6.1 Sample standard deviation, s = 1.6…

Q: The weights of fish in a lake are normally distributed with mean 20 lbs and standard deviation 6. If…

A: Mean = 20 Standard deviation = 6 Sample size = 4

Q: The sizes of car loans in North Carolina have mean $8,452 and a standard deviation $467. The…

A: The mean is 8452 and the standard deviation is 467.

Q: IE students in University Y taking Physical Ergonomics class were tasked to accomplish their…

A: Given : Sample size = n = 25 mean = μ = 174.5 Standard deviation = σ = 6.9

Q: A report states that the mean yearly salary offer for students graduating with a degree in…

A: n = 50 , s = 3900

Q: Suppose the mean wait-time for a telephone reservation agent at a large airline is 42 seconds. A…

A: Given : Suppose the mean wait time for a telephone reservation agent at a large airline is 42…

Q: Suppose that the body lengths of adult male crested porcupines in a certain region in Italy are…

A:

Q: The manager of a tool company wants to know whether the true average number of tools rented per day…

A:

Q: It has been stated that about 41% of adult workers have a high school diploma but do not pursue any…

A: Given,n=20p=0.41A random variable X~Binomial(n=20 , p=0.41)P(X=x)=20x0.41x1-0.4120-x ;…

Q: Question 20 State the appropriate hypotheses for this problem setting above. Question 21 Find the…

A: Question 20: Let μ1 denotes the mothers working at a company providing daycare facilities missed…

Q: In the university libtaty elevator there is a sign indicating a 16 person limit as well as a weight…

A: Let X be the random variable from normal distribution with mean weight (μ) = 150 pounds, standard…

Q: Suppose the mean wait-time for a telephone reservation agent at a large airline is 41 seconds. A…

A: Given  μ=41, n=250,  x¯=40.2, s=4.3

Q: Suppose the mean wait-time for a telephone reservation agent at a large airline is 45 seconds. A…

A:

Q: A census of the labor force in a large metropolitan area found that the time is takes for people to…

A:

Q: According to a money report by a government institution, 18-to-20-year-old college students have an…

A:

Q: A researcher knows that the average height of Filipino women is 1.525 meters. A random sample of 26…

A: One sample t-test is a parametric test for small sample, that is sample size less than 30.

Q: The operation manager of a large production plant would like to estimate the average amount of time…

A:

Q: Suppose the mean wait-time for a telephone reservation agent at a large airline is 45 seconds. A…

A:

Q: The life span of a car​ tire, calculated in​ miles, is normally​ distributed, with a mean of 70,000…

A: Solution: Let X be the  life span of a car​ tire, calculated in​ miles, is normally​ distributed,…

Q: The administrator at a local hospital states that on weekends the average wait time for…

A: H0 : the average ER wait time is 10 minutes H1 : the average ER wait time exceeds 10 minutes

Q: eight of mature Cedar tree are normally distributed with a mean of 38.7 meters and a standard…

A: Given: Population mean μ=38.70 Population standard deviation σ=15.3 Let X ~ N (38.7, 15.32)

Q: A well-known University in North Carolina wants to remove the highest paid administrations in their…

A:

Q: A manufacturer claims that a particular automobile model will get 50 miles per gallon on the…

A: μ=50 miles per gallon n = 30 cars x¯=2.3 miles per gallon σ=49 miles per gallon Let the level of…

Q: Suppose the mean wait-time for a telephone reservation agent at a large airline is 45 seconds. A…

A: Given the test is left tailed and p value = 0.002

Q: The high school athletic director is asked if football players are doing as well academically as the…

A: Given : population mean , u = 3.10  population standard deviation, σ = 0.54

Q: Last year, the mean annual salary for people living In Laguna Niguel, Callfornia was $65,000. A…

A: Solution: 10. Let X be the annual salary. From the given information, n=35, x-bar = $67,800 and S =…

Q: A manufacturer claims that a particular automobile will get at least 50 miles per gallon on the…

A: Solution: Given: Sample size: n = 30 cars Population standard deviation: σ = 2.3 miles per gallon…

Q: a well known university in north carolina wants to remove the highest paid administrations in their…

A:

Q: the average number of words per minute typed by a speed typist is 140 with a standard deviation of 8…

A:

Q: Alberti Abbasi, VP of Operations at Ingleside International Bank, is evaluating the service level…

A:

Q: In bags of Happy Trail Mix, the number of raisins is skewed left with a mean of 33.6 and a standard…

A:

Q: An ambulance service claims that it takes on the average 8.9 minutes to reach its destination in…

A: State the hypotheses.

Q: Suppose the average size of a new house built in a certain county in 2014 was 2,270 square feet. A…

A: The random variable house size of a new home follows normal distribution. We have to test whether…

Q: The New York Times reported that 17.2 million new cars and light trucks were sold in the United…

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

Q: 3. A production engineer claims that the time a trained worker should be able to assemble a certain…

A: The following information has been given: Hypothesized mean μ0=12. Sample mean x¯=12.75. Sample size…

Q: The town of KnowWearSpatial, U.S.A. operates a rubbish waste disposal facility that is overloaded if…

A: GivenMean(μ) = 26.68Standard deviation(σ)=12.52sample size(n)=4989

Q: A tire manufacturer claims that the best quality tire sold by the company will last an average of…

A: From the provided information, Mean (µ) = 35000 Population standard deviation (σ) = 5600 Sample size…

Q: 1. A survey of National Capital Region finds the average commute time of employees on one way is 30…

A: 1. Step 1: Let μ be the population mean. The average commute time of employees on one way is 30…

Q: A report states that the mean yearly salary offer for students graduating with a degree in…

A: T test for single mean.

Q: A study was made to determine if the subject matter in a physics course is better understood when a…

A: Hypothesis: Null and Alternate hypotheses are below:  H0:μ1-μ2=8H1:μ1-μ2>8 The test statistic is…

Q: Suppose the mean wait-time for a telephone reservation agent at a large airline is 42 seconds. A…

A: Given: sample size =n=250 sample mean=x=41.3 standard deviation=s=4.2 significance level=α=0.05

Q: A study was made to determine if the subject matter in a physics course is better understood when a…

A: Let μ1 denotes the population mean grade section with labs, and μ2 denotes the population mean grade…

Q: The exchange commission recently reported that the average age of a female shareholder is 44. A…

A: Let a random variable x denotes the age of the female shareholders. Let μ denotes the true mean of…

Q: A leading magazine (like Barron's) reported at one time that the average number of weeks an…

A: Given data,μ=35.2σ=5.6

Q: A manufacturer claims that a particular automobile will get at least 50 miles per gallon on the…

A: Note: Hey, since multiple questions are posted, we will answer first question for you. If you want…

Q: Suppose the mean wait-time for a telephone reservation agent at a large airline is 40 seconds. A…

A: We have to test claim.

Q: The weight of trucks traveling on a particular section of Highway 2H has a population mean of 15.8…

A:

Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.