Basic Math question and answers for July 26, 2023
- Q Average yearly inflation. If an item costs C at one time and D nyears later, and Cxn = D, then we call x the averageannual inflation factor (for example, x...
- Q The medical community unanimously agrees on the health benefitsof regular exercise, but are adults listening? During each of thepast 15 years, a polling organization has surveyed americans abouttheir exercise habits....
- Q nfatal disease akin to leprosy. This test can identify patientsbefore the onset of symptoms in order to begin early treatment. Thegroup tested 50,000 people across different villages from theStormlands and...
- Q Iwant to know the primal and duality realtionship1. when, primal is feasible , then dual has optimalsolution??? why??I want to see the proof...2. when primal has optimal solution , then...
- Q Find the critical value from the Studentized range distributionfor H0: ?1 = ?2 = ?3 = ?4 = ?5, with n = 35 at ? = 0.01. Round tothe nearest...
- Q Question 4 [25]The Zambezi car battery manufacturer claims that the averagelifespan of batteries produced by his firm is at least 30 months.The rival manufacture the Rehoboth batteries disagree and tookrandom...
- Q Many regions along the coast in North and South Carolina andGeorgia have experienced rapid population growth over the last 10years. It is expected that the growth will continue over the...
- Q Grades on an english test can be modeled as a normaldistribution with mean 80 and standard deviation 5.A) if the english department is awarding students with testgrades in the top...
- Q 35. The Center for Medicare and Medical Services reported thatthere were 295,000 appeals for hospitalization and other Part AMedicare service. For this group, 40% of first-round appeals weresuccessful (The Wall...
- Q PLEASE SHOW HOW TO CALCULATE EACH STEP IN EXCEL.Siders Breakfast Foods Inc., produces a popular brand of raisinbran cereal. The package indicates it contains 25.0 ounces ofcereal. To ensure that...
- Q 1a.) If a constant c is added to each xi in a sample, yieldingyi = xi + c, how do the sample mean and median of the yis relate tothe...
- Q How much do wild mountain lions weigh? Adult wild mountain lions(18 months or older) captured and released for the first time inthe San Andres Mountains gave the following weights (pounds):681051311296064Assume...
- Q An urn contains 11 white balls and 5 black balls.A simple random sample with replacement (wr) of size: n = 2is drawn from the urn.Calculate the probability that the sample...
- Q The following data represents a distribution of speeds at whichindividuals were traveling on a highway:64 76 65 67 67 80 79 73 65 68 64 67 68 70 65 70...
- Q A hospital director is told that 55% of the emergency roomvisitors are insured. The director wants to test the claim that thepercentage of insured patients is less than the expectedpercentage....
- Q A researcher would like to find out whether a man's nicknameaffects his cholesterol reading (though it is not clear why shebelieves it should). She records the cholesterol readingsof 10 men...
- Q QUESTION 1Perform an Fmax test on the following 2 samples, and then choosethe correct statement.Sample A: 8, 6, 8, 6, 8, 6 (M = 7, n = 6)Sample B: 12,...
- Q A portfolio manager expects to purchase a portfolio of stocks in60 days. In order to hedge against a potential price increase overthe next 60 days, she decides to take a...
- Q A regional planner is studying the demographics in a region of aparticular state. She has gathered the following data on ninecounties.CountryMedianIncomeMedianAgeCoastalA$47,96356.41B49,58558.91C46,44057.51D46,39141.21E34,80639.40F39,41641.21G35,54941.30H30,79633.50J32,23321.71(a)Is there a linear relationship between the median income andmedian...
- Q Consider a hyper geometric probability distribution with n=7, R=8 and N=17a) calculate P(x =5)b) calculate P(x=4)c) calculate P(x <=1)d) calculate the mean and strandard deviation of thisdistribution
- Q Consider two stocks with returns ?A and ?Bwith the following properties. ?A takes values -10 and+20 with probabilities 1/2. ?B takes value -20 withprobability 1/3 and +50 with probability 2/3.????(?A,?B)...
- Q Which hypothesis test is appropriate? Match. THESE are allconnected. AN)VA, chi square, f test for two variances, one sampleleft tailed t, one sampled right tailed t1.Research shows that there is...
- Q The intelligence quotients of 400 children have a mean value of100 and a standard deviation of 14. Assuming that I.Q.’s arenormally distributed, determine the number of children likely tohave I.Q.’s...
- Q Use the given statistics to complete parts? (a) and? (b). Assumethat the populations are normally distributed.Population 1 Population 2n=24 n=17x=47.4 x=42.2s=6.2 s=9.7?(a) Test whether ?1>?2 at the ?=0.05 level of...
- Q One hundred blood samples were taken from 100 individuals. Allof the blood samples were run through two machines to determine ifthe machines were testing samples appropriately. We expect thatboth machines...
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