Basic Math question and answers for August 26, 2023
- Q A turfgrass scientist is looking for an optimal approach tocontrol a certain plant disease in Kentucky blue grass. He comparesthree different management strategies designed so that they wouldreduce spread of...
- Q A diagnostic test has a 95% probability of giving a positiveresult when given to a person who has a certain disease. It has a10% probability of giving a (false) positive...
- Q You may need to use the appropriate appendix table or technologyto answer this question.Individuals filing federal income tax returns prior to March 31received an average refund of $1,053. Consider the...
- Q Let X be a random variable with CDF F(x) =e-e(µ-x)/β, where β > 0 and -∞ < µ, x < ∞.1. What is the median of X?2. Obtain the PDF...
- Q Two cards are drawn one after the other from a standard deck of52 cards.(a) In how many ways can one draw first a spade and then aheart?(b) In how many...
- Q A biologist looked at the relationship between number of seeds aplant produces and the percent of those seeds that sprout. Theresults of the survey are shown below.SeedsProduced54536266504140SproutPercent6159.550556973.572Find the correlation coefficient:...
- Q Please answer the following:United Dairies, Inc., supplies milk to several independentgrocers throughout Dade County, Florida. Managers at United Dairieswant to develop a forecast of the number of half gallons of...
- Q A multiple choice exam consists of 12 questions, each having 5possible answers. To pass, you must answer at least 8 out of 12questions correctly. What is the chance of this,...
- Q In 1997 a woman sued a computer keyboard manufacturer, chargingthat her repetitive stress injuries were caused by the keyboard(Genessey v. Digital Equipment Corporation). The juryawarded about $3.5 million for pain...
- Q 2. Dee Pressants owns Dee’s Pharmacy located in a small medicaloffice building. Dee estimates that 20% of her prescriptionbusiness comes from referrals from Dr. Mel Practice. For the next25 prescription...
- Q I have the answers for these questions, according to my studyguide. I don't understand how the answers were obtained, though, soplease show work!A) You are planning to take two exams.According...
- Q 1. Igor Beaver is a salesman for Planet of the Grapes, a mediumsized winery near Solvang. Igor is going on a sales trip visiting10 restaurants throughout Southern California. Historically, Igorconvinces...
- Q Given:xy-51-45-34-27-1100819213314413518What are the confidence limits (alpha = 0.05) for the true meanvalue of Y when X = 3?
- Q 1) Find the conditional probability of the indicated event whentwo fair dice (one red and one green) are rolled. The red one is 4,given that the sum is 9.2)The Sad...
- Q CustomerMonths SinceLast Service (x1)Type of RepairElectrical (0)Mechanical (1)(x2)Truck (1)orCar (0)(x3)Mileage of Vehicle(x4)Repair Timein hours (y)1211988552.926008688333811756454.84300978231.85211620992.96710676974.97901731134.28800762404.89411711704.410611606264.5An analyst at a local automotive garage wanted to see ifthere were relationships between repair time...
- Q Given the following probability distributions for variables Xand Y:P(x,y)X                  Y0.4       100            2000.6       200            100a. E(X) and E(Y).b. σX and σY.c. σXY. d. E(X + Y).e. Suppose that X represents the number of patients successfullytreated for...
- Q A small business uses a website to sell clothing andaccessories. the owners use data analytics and have determined ,based on the past 6 months of web visit data, that on...
- Q Use the given values ofn=2112andp=3/4to find the maximum value that is significantly​ low,muμminus−2sigmaσ​,and the minimum value that is significantly​ high,muμplus+2sigmaσ.Round your answer to the nearest hundredth unless otherwisenoted.
- Q acomprehensive example (not just a data set - a concept) showing howthe mean is effected by outliers, and the effect that number closeto the mean have on it
- Q A statewide census examined the number of beds in households andreported a mean (μ) of 2.25 beds and standard deviation (σ) of 1.9beds per household. But, since I live in...
- Q Sketch the area under the standard normal curve over theindicated interval and find the specified area. (Enter a number.Round your answer to four decimal places.) The area to the left...
- Q For the following situations, please write out null andalternative hypotheses.a. Assuming m = 100, do children who watch more than three hoursof TV per day have significantly lower IQs?b. Assuming...
- Q A restaurant uses comment cards to get feedback from itscustomers about newly added items to the menu. It recentlyintroduced homemade organic veggie burgers. Customers who tried thenew burger were asked...
- Q We always seem to be focused on using statistics in Businessdecisions. Please think of some ways you can use statistics in yourown decision making. For example, when we go on...
- Q identify (but don'tcollect) a type of dataset that might be normally distributed, andthen answer the following questions:What is brief description of the data?Is the data normally distributed? Specifically, why is...
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