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- A company sells air conditioners to four regions labelled as East Hint: StatisticsRMSE is the Root Mean Square Error. It is the standard deviation of the residuals or the errors in prediction. It is also a frequently used measure of the differences between the sample valu..
- A company sells seven types of boxes, ranging in volume from Hint: StatisticsConsider the integer programming problem in packaging industry. Fixed cost of a particular box is $1000. Variable cost depends upon the size of the box...
- A company that manufactures the Stinger tee claims that the thinner shaft and Hint: StatisticsStandard deviation is the measure of the dispersion of given variables. Variables with low standard deviation tend to be close to the average value of the variables, while those with a high ..
- A company that processes and distributes fruits and vegetables has Hint: StatisticsNormal distribution is a probability distribution. It is symmetric about the mean. It also shows that the data near the mean are more frequent in occurrence than data far from the mean. In t..
- A company uses a productivity measure to assess how efficiently employees use their time at work Hint: StatisticsLAST QUES:mean= 48.00 sd= sqrt(var) = 21.000 u= 55.00 n= 49.00 alpha= 5%critical value, z(a/2)z(0.05/2)1.960Submit Your Question..
- A company uses a ‘selling aptitude test’ in the selection of salesmen Hint: StatisticsProbability is a mathematical branch that is concerned with numerical descriptions on how that preposition could be true or how a phenomenon is to occur. When the probability is high then th..
- A company wants to (cheaply) test the effects of a weight loss drug they're developing Hint: StatisticsThe null and alternative hypotheses are two competing claims that researchers weigh evidence for and against using a statistical test: Null hypothesis (H0): There's no effect in the populati..
- A company wants to determine the relationship between the companys advertising expenditure and its sales revenue Hint: Null Hypothesis: Hoi: βi=0, βi is not significant, i.e. Xi should be included in the model.V/s Alternative Hypothesis: H1i: βi≠0, βi is significant, i.e. Xi should not be included in the model.If p-va..
- A company wishes to understand how sales are influenced by the price of its product. Hint: Regression analysis is the technique which is widely used for prediction and forecasting. It is basically used to know that dependent variable is related to which independent variable. Linear regressi..
- A company with a large fleet of cars hopes to keep gasoline costs down and sets a goal of attaining a fleet average Hint: StatisticsNull hypothesis, ho: fleet average is at least 26 miles per gallon. u >= 26. This is tested against alternative hypothesis, h1: fleet average is greater than 26 miles per gallon. u > 2..
- A completely random method is used to select 75 students Hint: Statistics"Cluster sampling is a probability sampling method in which you divide a population into clusters, such as districts or schools, and then randomly select some of these clusters as your sampl..
- A computer laboratory manager was interested in whether there was a difference Hint: Statistics"To determine whether there is a difference in functioning time between the three different branded battery packs using nonparametric methods, we can use the Kruskal-Wallis test. This test i..
- A computer manufacturer has developed a regression model relating Sales (Y in $10,000) with two independent variables. Hint: a) 38b) 11.4416c) reject null hypothesis if F > 3.26742352d) -0.3935..
- A computer manufacturer hired a market research firm to investigate the relationship between the likelihood a family Hint: "A linear regression models the relationship between two variables (explanatory & dependent) by fitting a linear equation to observed data.The least squares method best fits a linear regression mo..
- A computer scanner can read a bar code on a package correctly 97% of the time Hint: Statistics A sampling distribution is a likelihood dispersion of a measurement got from a bigger number of tests drawn from a particular populace. The inspecting circulation of a given populace i..
