# Statistics

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Solution Library **

#### Probability of Landing Number 10 on Two Dices

Question1. A drug is reported to benefit 40% of the patients who take it. If 6 patients take the drug, what is the probability that 4 or more patients will benefit?A. 0.179 B. 0.667 C. 0.862 D. 0.138 2. &n ... Read More

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#### Effect of Sample Size and Sample Mean of a Large Distribution

Question1. The theorem that states that the sampling distribution of the sample mean is approximately normal when the sample size n is reasonably large is known as the:A. central tendency theorem B. point estimate theorem C. simple random sample ... Read More

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#### Calculate Mean of a Probability Distribution And Standard Normal Variable

Question1. Given that Z is a standard normal random variable, P(-1.0 < Z < 1.5) isA. 0.9332 B. 0.0919 C. 0.7745 D. 0.8413 2. The mean of a probability distribution can be:A. a positive n ... Read More

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#### Calculate Probability in Normal Distribution and Standard Scores in a Random Variable

Question1. If Z is a standard normal random variable, then the value z for which P(-z < Z < z) equals 0.8764 isA. 1.16 B. 0.3764 C. 1.54 D. 3.08 2. The average height of flowering cherry ... Read More

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#### Calculate The Expected Value of X

QuestionAccepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker. Complex numbers shou ... Read More

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#### Calculate The Expected Value for an Investment

QuestionThe annual returns, in percentages, on stocks A and B for three possible states of the economy are given in the table below. Economy State Probability Stock A Stock B Good ... Read More

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#### What is the Nature of Variables Used by Researches in Surveys

QuestionThe following are examples of variable that researchers commonly measure on surveys. Name and define the level of measurement for each. a. Highest level of education (measured as completed some high school, completed high school, completed some university courses, etc.) b. The color of a per ... Read More

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#### Find Correlation for the Data for Car Value, Tenure, Year of Manufacture and Age of Car

Question Look at the data and answer the questions. · Provide descriptive statistics for the data ... Read More

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#### Calculate p-value of F test for Given Dataset

QuestionUse dataset from the sheet “House Selling Price.xls” attached along with this document. In the dataset, ‘P’= price (in 1000 dollars), ‘S’=size (in 1000 square feet), ‘Be’=number of bedroom, ‘Ba’=number of bathrooms and ‘New&rs ... Read More

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#### Giving Null and Research Hypothesis

QuestionCreate a null and research hypothesis using two of the variables on the list included below. Indicate which is the independent variable and which is the dependent variable for your hypotheses. Identify the potential level of measurement of each of the variables if you were to design a study ... Read More

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#### Calculation of Variance for Given Groups

QuestionOne-Way ANOVA (Analysis of Variance) For the four groups “working full-time,” “working part-time,” “temporarily unemployed,” and “unemployed, laid off” is there a statistically significant difference in the average value for the variable &ldquo ... Read More

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#### Calculation of Regression Analysis

QuestionA planning official in the Texas Department of Community Affairs, which works in the office next to you, has a problem. He has been handed a data set from his boss that includes the costs involved in developing local land use plans for communities with populations between 75,000 and 125,000. ... Read More

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