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Q-mart is interested in comparing its female and male 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, an analyst collected random samples of 25 female customers and 22 male customers. Based on these samples on average the 25 women charge customers spent $102.23 and the 22 male charge customers spent $86.46. Moreover, the sample standard deviation of the amount charged by the 25 women was $93.393 and the sample standard deviation of the amount charged by the 22 men was $59.695.Suppose using a 10% level of significance, you wish to know if there is a sufficient evidence for Q-mart to conclude that on average the amount spent by women charge customers differs ffrom the amount spent by men charge customers.Assuming that the amounts spent by female and male charge customers at q-mart are normally distributed, based on the procedure advocated by Bluman, what is/are the critical values that you would use to conduct this test of hypothesis?
Test a manufacturer's claim that the average life of its product is 100 hours (H0: µ = 100). There is evidence that the true average life of the product is not as advertised.
The z test statistic
What are the most common reasons you would select a non-parametric test over the parametric alternative?Discuss the issue of statistical power in non-parametric tests (as compared to their parametric counterparts). Which type tends to be more p..
Empirical Research, Sampling Methods and Reliability - Identify a business research and define the research questions for the identified problem or opportunity
the pdf for frechet distribution is ltbrgtfxa?a x-?-a-1 exp-x-?-a ltbrgtthen how we can calculate the cdf for frechet
Recorded the time in seconds it took for 8 participants to solve a puzzle. These times appear below. However, when the data was entered into the statistical program, the score that was supposed to be 22.1 was entered as 21.2.
What are the different types of non-probability sampling? What are the different types of probability sampling? How would you describe their difference?
Find the probability of getting five successes out of the eight trials.
American Theaters knows that a certain hit movie ran an average (μ) of 84 days in each city, and the corresponding standard deviation (σ) was 10 days. The manager of the southeastern district was interested in comparing the movie's popularity in his ..
Determine the expected value of the number guessed by the caller.
How much of each product do you recommend be produced that you believe maximizes revenue? How much revenue would be made if they followed your recommendation?
Do a literature review on the use of Poisson
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