Statistics question and answers for July 16, 2023
- Q Please show how to do in ExcelUsing Log-log model to estimate the demand functionModel: log(sales) = a + b * log(price) + errorExplain the results in term of how price...
- Q Suppose the length in cm of a male soccer player's foot followsa Normal distribution with mean 31 and variance 25. Suppose thelength in cm of a female soccer player's foot...
- Q Printed circuit cards are placed in a functional test afterbeing populated with semiconductor chips. Suppose that there are 8blue credit cards, 6 red credit cards and 4 blue debit cards...
- Q You have been asked to ascertain whether there is arelationship between income level and the amount of money donatedto the campaign. Sample data concerning these two categoricalvariables is given in...
- Q (Please answer without using MINITAB)Police cars, ambulances, and other emergency vehicles arerequired to carry road flares. One of the most important featuresof flares is their burning times. To help decide...
- Q The following data show the brand, price ($), and the overallscore for six stereo headphones that were tested by a certainmagazine. The overall score is based on sound quality andeffectiveness...
- Q Q1-If you know that the birth weights of male babies have a standarddeviation of 1.33 lb.Determine the percentage of all samples of 400 male babiesthat have mean birth weights within...
- Q what are some best statistical softwares which give step by stepanswers for hypothesis testing chi square goodness offit,confidence interval etc
- Q Write down a clear ‘Research Problem’ (This should be aclear statement mentioning the variable and the Hypothesis Test youintend to perform on it.)     And perform Hypothesis Testing for the research...
- Q Stadistics1. A statistics student takes a poll at a local Starbucks tofind out if they support the President’s decision for declaring theconstruction of a southern border wall a national emergency....
- Q The operating time of a machine manufactured by company A is arandom variable (Unit: years) with a standard distribution of N (5;3,25).a. A person who has purchased this device has...
- Q PART 3 - Create a confidence interval for aproportion.Investigate the proportion of married patients.3a. Write a reason why you would want to estimate thispopulation proportion. What can be learned?3b. State...
- Q What are the conditions required to apply the multipleregression test?how to apply it using ANOVA table?
- Q 3. Create the printout for testing whether the meanclosing price of all NYSE stocks differs from themean closing price of all NASDAQstocks and attach it here. Answer the following questionsregarding...
- Q The average time to run the 5K fun run is 22 minutes and thestandard deviation is 2.5 minutes. 49 runners are randomly selectedto run the 5K fun run. Round all...
- Q One obervation is taken from the probability model.f(x;θ)=((θ/2)^|x|)*((1-θ)^(1-|x|)) for x=-1,0,1 and θ ∈ [0,1]. Wefind that the MLE of θ is |x|.Now consider T(X) where T(X)=2 when x=1 and T(X)=0...
- Q QUESTION 1If Z is a standard normal random variable, then P(Z > 0)=  010.45790.51 points   QUESTION 2Company A claims that 20% of people in Sydney prefer its product(Brand A). Company B...
- Q The business faculty of a public university recorded data on thenumber of students enrolled in the different study majors for theyears 2018 and 2019. These data are useful for the...
- Q With the rise in fuel costs, the price unit cost of the majorityof beef products have increased, you are interested in the cost of700kg fillet. The price of a 700g...
- Q Create the printout for testing whether the meanlow stock price of all NYSEstocks differs from $35 and attach it here. Answer thefollowing questions regarding this printout:Student Edition of Statistix10.0Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 4/21/2020, 5:29:39...
- Q Refer to the gasoline sales time series data in the giventable.WeekSales (1,000s of gallons)117221316424517618722820921101911161225(a)Compute four-week and five-week moving averages for the timeseries.If required, round your answers to two decimal places.WeekSales4...
- Q The owners of an e-business have been successful in sellingfashion products but are now venturing into another domain. Knowingthat the impact of advertising on profit cannot be overemphasized,they are interested...
- Q Is the national crime rate really going down? Some sociologistssay yes! They say that the reason for the decline in crime rates inthe 1980s and 1990s is demographics. It seems...
- Q A car company is considering a new engine ï¬lter for its newhybrid automobile line. But it does not want to switch to the newbrand unless there is evidence that the...
- Q The business faculty of a public university recorded data on thenumber of students enrolled in the different study majors for theyears 2018 and 2019. These data are useful for the...
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