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Independent-Samples t Test with SPSS In your research, you may find that you must compare the means of two samples related to one particular variable. For example, you may have population samples from two ethnic groups that you wish to compare against income level. In these cases, you will need to use an independent-samples t test. This Application Assignment gives you an opportunity to try this t test and consider its application to your own research topic. To prepare for this Application: • Access the gss04student_corrected dataset in the Course Information area of the classroom to use for this Application https://class.waldenu.edu/bbcswebdav/institution/USW1/201570_27/XX_RSCH/RSCH_8201/Course Information/Course Information/embedded/gss04student_corrrected.sav The assignment: • Craft up to a one page double- spaced write up of the statistical results (include any additional pages needed for any APA tables or graphs and the SPSS syntax and output) in which you do the following: ? State the statistical assumptions for this test. ? Using the data set you have selected, select independent and dependent variables. ? Develop the null and the alternative hypothesis. ? Use the SPSS to calculate an independent-samples t test. ? Report on the p value and the confidence interval. ? Interpret the confidence interval. ? Decide whether to reject or retain the null hypothesis. ? Generate syntax and output files in SPSS. You will need to copy and paste these into your Application document. ? Based on your SPSS analysis, report the results using correct APA format. Your report should include the following: ? SPSS syntax and output files
Q-mart is interested in comparing its male and female customers. Q-mart would like to know if the amount of money spent by its female charge customers differs, on average, from the amount spent by its male charge customers. To answer this question, a..
Select the report of at least 2 polls taken on two different topics. (For example, the percent in favor versus opposed to abortion, the economy, a particular candidate, a certain product, etc. ) Various polls can be found at www.zogby.com or www.rasm..
1)The term regression was originally used in 1885 by Sir Francis Galton in his analysis of the relationship between the heights of children and parents. He formulated the “law of universal regression,” which specifies that “each peculiarity in a man ..
The labor relations manager of a large corporation wished to study the absenteeism among workers at the company's central office during the last year. A random sample of 25 workers revealed the following: an average of 9.7 days; a standard deviation ..
Suppose the age of buyers were collected and the data follows the bell curve (a normal distribution). The buyers had an average age of 41 years and a standard deviation of 7. You plan to take a random sample of 68 buyers and calculate a sample mean.
Valid Confidence Interval: A pollster for the Gallup Organization randomly generates the last two digits of telephone numbers to be called, so the numbers from 00 to 99 are all equally likely. Can the methods of this section be used to constru..
A large playlist consists of songs with times which have mean 2 minutes ten seconds and standard deviation 15 seconds.
What assumptions about the number of pedestrians passing the location in an hour are necessary for your hypothesis test to be valid?
Some of the following statements refer to the null hypothesis, some to the alternate hypothesis. State the null hypothesis, H0, and the alternative hypothesis. Ha, in terms of the appropriate parameter (μ or p). a. The mean number of years Americans ..
The total costs of a proposed project consist of fabrication costs and installation costs. Each cost is uncertain. Fabrication costs Probability Installation costs Probability $MM % $MM % 10 40% 5 25% 20 50% 10 60% 50 10% 30 15% 3.1. Assume that ther..
Researchable hypothesis for Accounts Receivable
A survey claims that 9 out of 10 doctors recommend aspirin for their patients with headaches.
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