Oasis is an asset management company in South Africa. It has found that there is a three-in-five chance that a general equity unit trust fund will perform better than the overall JSE share index over any one-year period. Seven general equity unit trust funds are randomly selected from general equity unit trust funds. For 150 general equity unit trust funds, what is the expected number of general equity unit trust funds that will perform better than the overall JSE share index (rounded off to zero decimals)?  D. 120 A. 150  B. 50  C. 90

Q: A recent law has been passed banning the use of hand-held cell phones while driving, and a survey…

A: The question is based on a discrete prob. distribution Given : Prob. that driver's refrain from…

Q: At a major credit card bank, the percentages of people who historically apply for the Silver, Gold…

A: Given Information: Percentage of silver card customers = 60%  Percentage of Gold card customers =…

Q: An insurance company knows that the average cost to build a home in a new California subdivision is…

A: Given that the average cost= $97,656 The probability of a wildfire destroying all the homes in the…

Q: Why can’t all the probabilities for a Poisson random variable be displayed in a probability…

A:

Q: What is the probability that at most two of these general equity trust funds performed better than…

A: Binomial distribution forms a basic probability distribution in statistics . It is a consequence of…

Q: Charlie wishes to investigate the effects of gummy bears which have been claimed to help increase…

A: The null hypothesis claims that there is no difference between the speeds, so the ratio of speed…

Q: The United States Bureau of Labor Statistics (BLS) conducts the Quarterly Census of Employment and…

A: Given Data Population Mean,μ = 28.29 Population Standard Deviation,σ = 33.493…

Q: A local government official observes an increase in the number of individuals with cardiovascular…

A: Given data is0.5,0.7,0.9,1.1,1.2,1.3,1.4,2.0,2.3,2.4,2.7,3.0

Q: A new battery supposedly with a charge of 1.60 volts actually has a voltage with a uniform…

A:

Q: Let ?X be the total taxable earnings, in millions, of all wage earners in a county. The mean total…

A: Central limit theorem: If the population is normally distributed then the sampling distribution is…

Q: According to a regional association of medical​ colleges, only 41​% of medical school applicants…

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

Q: At a major credit card bank, the percentages of people who historically apply for the Silver, Gold…

A: Formulae : 1) Expected value = N*Pi  , where n is sample size.   2) Chi-square test statistic : χ2…

Q: A pharmaceutical company receives large shipments of aspirin tablets. The acceptance sampling plan…

A: Binomial distribution: A discrete r.v. X taking values 0,1,2,3, …., n is said to follow a binomial…

Q: A bank has found that 31 of their 5000 borrowers have defaulted on their loan. They have also found…

A: Given dataA bank has found that 31 of their 5000 borrowers have defaulted ontheir loan. They have…

Q: An insurance company knows that the average cost to build a home in a new California subdivision is…

A: Given Information: The average cost to build a home in a new California subdivision is ​$96,618.…

Q: If the percentage of healthy units in the production of a type of traffic signal lamp is 80% and the…

A:

Q: If a researcher describes a factorial design as a 2 x 2 ANOVA, what does this mean?

A: Given information: A factorial design is given.

Q: The lifetime of an electronic deivce is modeled as an exponential random variable. If12% of the…

A:

Q: She then conducts a hypothesis test to see whether there is significant evidence to conclude that…

A: The hypotheses can be constructed as: H0: The speeds are the same i.e. no effect from ingesting…

Q: The Embassy of Vietnam in India receives a number of visa applications. Should the number of visas…

A: Discrete variable: The quantitative variable which can be counted as an individual unit is called a…

Q: A credit card company randomly generates temporary five-digit pass codes for cardholders. Meghan is…

A: General formula of probability,  Probability = Number of favorable outcomes Total outcoms

Q: The United States Bureau of Labor Statistics (BLS) conducts the Quarterly Census of Employment and…

A: Obtain the probability that the mean taxable wages in James sample of 54 counties will be less than…

Q: A pharmaceutical company receives large shipments of aspirin tablets. The acceptance sampling plan…

A: Obtain the probability that whole shipment will be accepted.   The probability that whole shipment…

Q: The Medassist Pharmaceutical Company receives large shipments of aspirin tablets and uses this…

A: It is given that n = 40 and p = 0.04.

Q: The United States Bureau of Labor Statistics (BLS) conducts the Quarterly Census of Employment and…

A: Given data, μ = 28.29 σ = 33.493 n = 56

Q: g a 2-for-1 stock split. Before the transaction is finalized, at least two-thirds of the 1,200…

A: The probability that stockholder will approve will be: p=1518   =0.833     The number of stockholder…

Q: the american association of individual investors conducts a weekly survey of its members to measure…

A: The population proportion p is 0.39. The null and alternative hypotheses are given below. Z-test is…

Q: According to a regional association of medical​ colleges, only 47​% of medical school applicants…

A: You had asked for part a to c only. So I had done it only.

Q: In this part of the question, you should calculate the required probabilities - show your working.…

A: The poisson random variable is the number of events occur in a given interval of space or time. In…

Q: A pharmaceutical company receives large shipments of aspirin tablets. The acceptance sampling plan…

A: From the provided information, Sample size (n) = 56 tablets The whole batch will be accepted if…

Q: In this part of the question, you should calculate the required probabilities - show your working.…

A:

Q: Oasis is an asset management company in South Africa. It has found that there is a three-in-five…

A: Binomial Distribution: If we have n trials and each having two outcomes - Success and Failure,…

Q: Suppose you manage the demand for a towing company in Little Rock which follows a poisson process.…

A: Given : On a usual day a company get 4 requests. Let X be the random variable that denotes the…

Q: The United States Bureau of Labor Statistics (BLS) conducts the Quarterly Census of Employment and…

A: Let, X: The total taxable earnings, in millions, of all wage earners in a county.  X: The mean of…

Q: A pharmaceutical company receives large shipments of aspirin tablets. The acceptance sampling plan…

A:

Q: the american association of individual investors conducts a weekly survey of its members to measure…

A:

Q: A pharmaceutical company receives large shipments of aspirin tablets. The acceptance sampling plan…

A: Given, Number of samples = 43 Probability of defective tablets in one shipment = 0.03. As the…

Q: It is known that 70% of adult workers have a high school diploma.  If a random sample of 25 adult…

A:

Q: the american association of individual investors conducts a weekly survey of its members to measure…

A: We are given the following results about the stock market The proportions for bullish, bearish, and…

Q: The Hawkins Company randomly samples 10 items from every large batch before the batch is packaged…

A:

Q: The United States Bureau of Labor Statistics (BLS) conducts the Quarterly Census of Employment and…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: A pharmaceutical company receives large shipments of aspirin tablets. The acceptance sampling plan…

A: It is given that of shipment of 4000 aspirin tablets actually has a 5​% rate of​ defects means that…

Q: A pharmaceutical company receives large shipments of aspirin tablets. The acceptance sampling plan…

A: The probability that this whole shipment will be accepted is obtained below:Here, the rates of…

Q: According to Harper's Index, 60% of all federal inmates are serving time for drug dealing. A random…

A: Solution: Let X be the number of inmates serving time for drug dealing and n be the sample number of…

Q: As a result of investigating 12 patients for postoperative aftereffects, 3 had aftereffects. If…

A: Given that

Q: The United States Bureau of Labor Statistics (BLS) conducts the Quarterly Census of Employment and…

A: We have given that.   X~N( μ , ?^2 )   μ=28.29  , ? =33.493 , n=54   Z-score =( x - μ )/?

Q: Can we safely assume with 90% confidence that opinion regarding the choice of future technology…

A:

Q: In a population, a parameter called "parametus" has a value of 9. If the statistic estimating…

A:

Q: Test whether males are less likely than females to support a ballot initiative, if 23% of a random…

A: Given Data: p1=0.23 p2=0.32 n1=50 n2=50

Q: The United States Bureau of Labor Statistics (BLS) conducts the Quarterly Census of Employment and…

A: = 28.29   =  33.493 n = 56 P( < 33) = 1 - P( < 33) = 1 - P[( -  ) / /n < (33 - 28.29) /…