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Consider the hypotheses shown below. Given that x=106, =25, n=43, =0.10, Complete parts a and b. H0: =113 H 1 :113 a) The z-test statistic is _____ ?...
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The computed value of the statistic for testing the equality of mean false rejects among the 5 different inspectors is:005 0.126 2.835 10.
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Assume the random variable x is normally distributed with mean =86 and standard deviation =5. Find the indicated probability.
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Continuing with the same spreadsheet data, suppose that we wanted to compare the wages for union and non-union employees.
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QUESTION 1 Suppose that you began a one-year study of tuberculosis (TB) in a subsidized housing community in the Lower East Side of New York City on...
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In an experiment, participants were divided into 4 groups. There were 20 participants in each group, so the degrees of freedom (error) for this study...
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In Florida, juries for certain types of trials are made up of 6 people, and the decision must be unanimous. Suppose a jury pool consists of 17 people....
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The air in poultry-processing plants often contains fungus spores. Inadequate ventilation can affect the health of the workers. The problem is most...
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A researcher claims that less than 40 percent of Rutgers students are commuter. A consumer agency wants to test this claim.
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According to a 2011 report by the US Department of Labor, civilian Americans spend an average of 2.75 hours per day watching television.
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A random sample of 100 people was taken. Eighty of the people in the sample favored candidate A. The 95% confidence interval for the true proportion
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What score would need added to the following data set in order to make it bimodal?
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Consider situations in your work or home that could be addressed through a continuous probability distribution.
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I have 500 potential customers who come to my candy store each day.
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Between a z-score of .27 and the mean. Between a z-score of 1.
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1% significance r = -0.5667 it can be concluded that x and y is negative. Using critical value approach formulate and test hypothesis .... I have Ho:...
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The Mumbai Cricket Club, a professional club for the cricketers, has the player who led the league in batting average for many years.
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) The histogram shows the distribution of stops for red traffic lights a commuter must pass through on her way to work.
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14.) A certain lottery has 35 numbers. In how many different ways can 4 of the numbers be selected? (Assume that order of selection is not
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a restaurent has 3 sources of revenue:eat-in orders,eat-out orders and at bar.the daily revenue from each source is normally distruted with mean and...
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) Use technology to (a) construct and graph a probability distribution and (b) describe its shape.
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16th Desultory Bank is installing new ATM machines. Each machine features a keypad with 7 keys, each with a unique image or emoji label.
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How do you construct a 95% confidence interval using a regression line?
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Determine whether the random variable is discrete or continuous. The number of people with blood type A in a random sample of 12 people b. The number...
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) Find the indicated probabilities using the geometric distribution, the Poisson distribution, or the binomial distribution. Then determine if the...
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Interpreting Simple Linear Regression 1. Linear correlation coefficient r = 0.794556 2. Coefficient of Determination ( r square) 0.631319 3. Standard...
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Suppose a car driven under different conditions gets a mean gas mileage of 40 miles per gallon with a standard deviation of 3 miles per gallon. If...
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In my liner regression, my R square value is .78 so how do I test this value is significantly greater than zero, I want to test at the 5% level.
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e of test for population means should be performed when examining a situation in which employees are first tested, then trained, and finally retested?...
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Weather forecasters would like to report on temperatures in Washington, DC.
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In the test for comparing two population means when population variances are unknown and unequal, a student calculates the degrees of freedom using...
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A farmer uses a lot of fertilizer to grow his crops.
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Listed below is the number of movie tickets sold at the Library Cinema-Complex, in thousands, for the period from 2001 to 2013. Compute a five-year...
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Discussing Appropriate AnalysesPart of the emphasis of this course has been to equip you with the necessary knowledge for identifying the appropriate application of advanced statistical analysis to di
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You have two sample groups. In group one, there are nine successes out of 60. In group two, there are 13 successes out of 50. Calculate:
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A small post office has two open windows. Customers arrive according to a Poisson distribution at the rate of 1 every 3 minutes. However, only 80%...
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Speedy Oil provides a single-server automobile oil change and lubrication service. Customers provide an arrival rate of 3.5 cars per hour. The...
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The mid-term test of a certain module has a high (30%) failure rate. The instructor of the module conducted a few special sessions for the entire...
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Milk cartons are advertised to contain one litre of milk. From a randomly sample of 18 one-litre cartons whose contents were accurately measured by...
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Mimi conducted a survey on a random sample of 100 adults. 60 adults in the sample chose banana as his / her favorite fruit.
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To test the effect of alcohol in increasing the reaction time to respond to a given stimulus, the reaction times of seven people were measured.
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Dr. Karl Ware is a Professor of Business Law at DeVry/ Keller University and has recruited quot;30quot; Florida Residents and Prelaw Students from
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what type of designs include more than one independent variable?
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Preliminary geologic studies have assigned the following probabilities of finding oil: P(high quality oil)=0.50, P(medium quality oil)=0.20, P(no...
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decreasing her sample size B. decreasing her confidence level C. decreasing her sample proportion D. All of the above would decrease the width of...
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the true mean travel-to-work time for San Francisco residents with 95% confidence and a margin of error of 2 minutes, what sample size should be used?...
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14) A textbook publisher wants to determine what percentage of college professors either require or recommend that their students purchase textbook
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For the following problem, I am having trouble: Recent research indicates that undergraduate college students exercise on average 14 hours per month....
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100 * (1-p) is how confident we are the treatment groups actually differ. Example p=0.02 indicates we are 98% sure that the differences we observed...
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D) Suppose the prediction equation is y-hat = x. Identify the y-intercept and slope, and interpret their values.
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