Solution Library


Key Features Of Non-Probability Sampling Method

QuestionDiscuss the key features of non-probability sampling and provide examples of where different approaches might be useful. SummaryThe question belongs to Statistics and it discusses about the key features of non-probability sampling with different approaches and examples.Total Word Count 364 ... Read More

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Principles And Strategies For Effective Questions In Survey

QuestionThe wording of questions can be a challenge when developing a survey instrument. What strategies and principles can be used to support the development of effective questions?SummaryThe question belongs to Statistics and it discusses about the statement where the wordings of a question can be ... Read More

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Why Computing A Variance Of Numbers Is Like Analyzing Their Differences

QuestionExplain why computing a variance of several numbers is like analyzing their differences.SummaryThe question belongs to Statistics and it discusses about computing a variance for several numbers would be like analyzing their differences. This has been explained in the solution.Total Word Coun ... Read More

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Application Of ANOVA For Hypothesis Testing

Question“Do longer working shift impact on patient care reflected on falls, medication errors, patient and staff complaints due to staff fatigue?”Working at neurosurgical ward in one of the teaching hospital for last four years has assisted my knowledge and understanding in managing neur ... Read More

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Interpretation Of Financial Data To Make Predictions

QuestionCan you predict the price of your favorite stock shares based on a market index value? For a stock that has at least five years of history, develop a regression equation to predict its value if the index of your choice goes up by and if it goes down by 15% from its value on the day you do th ... Read More

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Calculate The Probability of Selling One Ice Cream Flavor From Three

QuestionAn ice cream vendor sells three flavors: chocolate, strawberry, and vanilla. Forty five percent of the sales are chocolate, while 30% are strawberry, with the rest vanilla flavored. Sales are by the cone or the cup. The percentages of cones sales for chocolate, strawberry, and vanilla, are 7 ... Read More

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Calculate The Proportion of Accidents Involving Single Vehicle From List of Accidents

QuestionMothers Against Drunk Driving (MADD) is a very visible group whose main focus is to educate the public about the harm caused by drunk drivers. A study was recently done that emphasized the problem we all face with drinking and driving. Five hundred accidents that occurred on a Saturday night ... Read More

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Calculate The Probability of Selecting a Fast Food Restaurant Worker with Above Average Salary

QuestionThe average hourly wage of workers at a fast food restaurant is $6.50/hr with a standard deviation of $0.45. Assume that the distribution is normally distributed. If a worker at this fast food restaurant is selected at random, what is the probability that the worker earns more than $6.75? Su ... Read More

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Calculate The Probability of Selecting a Lobsterman Whose Catch is Below the Average Weight

QuestionIn a particular region of Cape Cod, it is known that lobstermen trap on average of 32 pounds of lobster per day with a standard deviation of four pounds. If a random sample of 30 lobster fishermen is selected, what is the probability that their average catch is less than 31.5 pounds?Summary ... Read More

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Calculate The Probability of Selecting Automotive Repair Workers Earning Below Average Wages

QuestionSuppose that the average weekly earnings for employees in general automotive repair shops is $450, and that the standard deviation for the weekly earnings for such employees is $50. A sample of 100 such employees is selected at random. Find the probability that the mean of the sample is betw ... Read More

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Calculate The Probability of Selecting Store Customers Spending Between $20 To $35

QuestionA popular retail store knows that the purchase amounts by its customers is a random variable that follows a normal distribution with a mean of $30 and a standard deviation of $9. What is the probability that a randomly selected customer will spend between $20 and $35 at this store? Summary ... Read More

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Calculate The Probability of Scoring Less Than Average in Organic Chemistry

QuestionA set of final exam scores in an organic chemistry course was found to be normally distributed, with a mean of 73 and a standard deviation of 8. What is the probability of getting a score of 68 or less on this exam? Summary This short answer question belongs to Statistics and it is about ca ... Read More

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