Author:
Christine Farr

A firm offers routine physical examinations as part of a health service program for its employees. Theexams showed that 8% of the employees needed corrective shoes, 15% needed major dental work, and3% needed both corrective shoes and major dental work. What is the probability that an employeeselected at random will need either corrective shoes or major dental work?.50.20.251.0017 Consider a regression analysis, where the correlation coefficient is 0.18. Then, the coefficient ofdetermination is _______.1.16.36.0324.42418When data is collected using a qualitative, nominal variable, what is true about a frequency distributionthat summarizes the data?A pie chart can be used to summarize the data. The number of classes is equal to the number of variables plus 2.The “5 to the k rule” can be applied.The upper and lower class limits must be calculated.19For any chi-square goodness-of-fit test, the number of degrees of freedom is found by ______.n–k-1n+kn+1k -120Checklists with several items to be considered by respondents may be subject to _____.halo effectsleniency effectsprimacy effectsrecency effects21The question, "Should products be withdrawn if even one death is associated with its prescribed use,even if no fault for the tampered product accrues to the manufacturer?" is an example of a(n) _____.unresearchable questionill-defined problemstrip data mining issuefavored-technique problem23For a chi-square test involving a contingency table, suppose the null hypothesis is rejected. We concludethat the two variables are __________.not relatedcurvilinearlinearrelated24A ranking scale is a scale that _____.scores an object by making a comparison and determining order among two or more objectsscores an object without making a direct comparison to another objectgroups participants groups concepts according to specific criteri25The manager of Paul's fruit and vegetable store is considering the purchase of a new seedless watermelonfrom a wholesale distributor. Since this seedless watermelon costs $4, will sell for $7, and is highlyperishable, he only expects to sell between six and nine of them. What is the opportunity loss forpurchasing nine watermelons when the demand is for seven watermelons?80426The weekly incomes of a large group of executives are normally distributed with a mean of $2,000 and astandard deviation of $100. What is the z-score for an income of $2,100?2.00-0.901.001.68 1227Sam's Club installed self-checkout stations that can track not only member's purchases but alsopackaging problems, as the system uses universal product codes to match the item the shopper has intheir cart with its price and inventory level in the store, generating a spreadsheet style report for theresearcher. If you consider the scanner as the tool for collecting data for Sam's researchers, they are doingdata entry by ____.spreadsheetOptical Character RecognitionVoice recognitionField editing28A sales manager for an advertising agency believes that there is a relationship between the number ofcontacts that a salesperson makes and the amount of sales dollars earned. What is the dependentvariable?number of contactssales managersamount of sales dollarssalesperson30In multiple regression analysis, when the independent variables are highly correlated, this situation iscalled __________________.multicollinearityhomoscedasticitycurvilinearityautocorrelation29Which of the following goals should a good survey instrument accomplish?Encourage each participant to provide accurate responsesEncourage participants to end the survey when they feel they have contributed enoughinformationEncourage participants to answer only those questions they are comfortable answeringEncourage participants to be succinct in their responses 13A linear trend equation is used to represent time series values when the data are changing by equal what?percents and proportionsamountspercentsproportions

Tutorial