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Describe the difference between parametric statistical procedures and nonparametric statistical procedures.A sequence is given (3) Identify the values of n, n1, n2, and r. (b) Determine the critical values at the a=0.05 level of significance. (c) Conduct a hypothesis test on the randomness of the data. MMMFFFMMFMFFFFA sequence is given (=) Identify the values of n, n1, n2, and r. (b) Determine the critical values at thea=0.05 level of significance. (c) Conduct a hypothesis test on the randomness of the data. MMMFFFFMMFFFFFFA sequence is given: (3) Identify the values of n, n1, n2, and r. (b) Determine the critical values at the a=0.05 level of significance. (c) Conduct a hypothesis test on the randomness of the data. YYNYYYYYNNNNNNNNNYYRandom-Number GeneratorsUsing statistical software or a graphing calculator with advanced statistics features, randomly generate a sequence of 20 integer values, each either 0 or 1. Conduct a runs test at the o= 0.05 level of significance to verify that the sequence of integers is random.Mustrate the use of the sign test to test hypotheses regarding a population proportion The only requirement for the sign test is that our sample beobtained randomly. When dealing with nominal data, we canidentify a characteristic of interest and then determine whethereach individual in the sample possesses this characteristic. Underthe null hypothesis in the sign test, we expect that half of the datawill result in minus signs and half in plus signs. If we let a plussign indicate the presence of the characteristic (and a minus sign indicate the absence), we expect half of our sample to possess thecharacteristic while the other half will not Letting prepresent theproportion of the population that possesses the characteristic, ournull hypothesis will be HD: p= 0.5. Use the sign test for Problems17 and 18, following the sign convention indicated previously. Women GamersA study of 100 randomly selected computer and video game players found that 38 were women (based on data from the Entertainment Software Association, 2007). Using an a = 0.01 level of significance, does this indicate that less than 50%% of gamers are women?Mustrate the use of the sign test to test hypotheses regarding a population proportion The only requirement for the sign test is that our sample beobtained randomly. When dealing with nominal data, we canidentify a characteristic of interest and then determine whethereach individual in the sample possesses this characteristic. Underthe null hypothesis in the sign test, we expect that half of the datawill result in minus signs and half in plus signs. If we let a plussign indicate the presence of the characteristic (and a minus sign indicate the absence), we expect half of our sample to possess thecharacteristic while the other half will not. Letting prepresent theproportion of the population that possesses the characteristic, ournull hypothesis will be HD: p= 0.5. Use the sign test for Problems17 and 18, following the sign convention indicated previously. Trusting the Pressin a study of 2302 U.S. adults surveyed online by Harris Interactive 1243 respondents indicated that they tend to not trust the press. Using an o = 0.05 level of significance, does this indicate that more than half of U.S. adults tend to not trust the press?\fIn Problems Determine whether the underlined value is a parameter or a statistic. In a survey of 1011 people age 50 or older, 73%% agreed with the statement "I believe in life after death." Source: Bill Newcott. "Life after Death," AARP Magazine, Sept /Oct. 2007A cellular phone company is looking for ways to improve customer satisfaction. They want to select a simple random sample of four stores from their 15 franchises in which to conduct customer satisfaction surveys. Discuss the procedure you would use, and then use the procedure to select a simple random sample of size n = 4. The locations are as follows: Afton Ballwin Chesterfield | Clayton Deer Creek Ellisville | Farmington Fenton Ladue Lake St. Louis O'Fallon | Pevely Shrewsbury Troy WarrentonA congresswoman wants to survey her constituency regarding public policy. She asks one of her staff members to obtain a sample of residents of the district. The frame she has available lists 9012 Democrats, 8302 Republicans, and 3012 Independents. Obtain a stratified random sample of 8 Democrats, 7 Republicans, and 3 Independents. Be sure to discuss the procedure used.A farmer has a 500-acre orchard in Florida. Each acre is subdivided into blocks of 5. Altogether. there are 2500 blocks of trees on the farm. After a frost, he wants to get an idea of the extent of the damage. Obtain a sample of 10 blocks of trees using a cluster sample. Be sure to discuss the procedure used.Cell Phones Many newspaper articles discuss the dangers of teens texting while driving. Suppose you are a journalist and want to chime in on the discussion. However, you want your article to be more compelling, so you decide to conduct an experiment with one hundred 18-to 19-year-old volunteers. Design an experiment that will assess the dangers of texting while driving. Decide on the type of experiment (completely randomized, matched-pair, or other), a response variable, the explanatory variables, and any controls that will be imposed. Also, explain how you are going to obtain the data without potentially harming your subjects. Write an article that presents the experiment to your readers so that they know what to anticipate in your follow- up article. Remember, your article is for the general public. so be sure to clearly explain the various facets of your experiment.
