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The following data is taken from a customer satisfaction survey for a food product. For the class, perform a chi-square test on the data or similar data. Use the test to test the claim of whether a statistically significant relationship exists between the customer's satisfaction level and decision to repurchase the food item again. You may use the manual method of calculation, or show how MegaStat (or other software) is used to analyze the data. Be sure to discuss the interpretation of results.
Customer Satisfaction LevelOverall Taste
NeitherVery Satisfied Nor VeryDissatisfied Dissatisfied Dissatisfied Satisfied Satisfied
Unlikely 120 60 25 15 10Purchase Undecided 40 40 30 45 55Decision Likely 10 15 45 70 175
Show your work (either your hand calculations or your statistical program output). You can either scan your work and submit it as a low-resolution graphic, type your answers directly into the document, or cut and paste your work into a Word file.
In the Willow Brook National Bank waiting line system (see Problem 1), assume that the service times for the drive-up teller follow an exponential probability distribution with a service rate of 36 customers per hour or 0.6 customer per minute.
Make your calculation supposing a two-sided two-sample t-test with a type I error (alpha) of 0.056
If a student is randomly selected what is the possibility that the student is male and from out of state.
Given the following sample information, test the hypothesis that the treatment means are equal at the .05 significance level. Complete an ANOVA table. State your decision regarding the null hypothesis.
You are told that twenty-five percent of the player names in the hat are quarterbacks and that forty percent of the players in the hat have Porsches in their garage at home. What is the likelihood that you will get to go to lunch with a quarterbac..
Median score of 67. Based on this information, the distribution of test scores is symmetric, left skewed, right skewed, or bimodal?
what is the probability that the sample mean will be at least 1000? Do you need to use the central limit theorism to answer this question? explain.
Type the above data into the SPSS Data Editor window, or save this file as an unformatted text file and write SPSS syntax to read it in.
The correct set of hypotheses to test the effect of the bonus plan, the difference between the t and z distributions
Make a List of type of possible errors. Assume that you were interested in knowing the mean score for a certain quiz in a statistics class.
Given that X1 is in the model, does X2 contribute to predicting the dependent variable at the .05 significance level?
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