hi i need help to calculate this statistics on manual calculations. this is the 5 question, A study was conducted to determine whether the e-satisfaction level of customers with mobile food ordering apps is greater than 4 at a significance level of 1%. I amsatisfiedwith theOverall, II amgenerallypleasedwithI am veryI am happywasway thatmobilesatisfiedwithsatisfiedwithmobilefood ordermobilewithmobilefood orderfood order | food orderapps havemobileapps.food orderapps.carried outapps.apps.transactionS.4444344333443443243444444343344444444445454543554222545555455333344444544.5444455514444535554444443455555444354434444444455555444445555555555454544545444454533555554444455444.454.333334454.4.4.4454443444444

hi i need help to calculate this statistics on manual calculations. this is the 5 question, A study was conducted to determine whether the e-satisfaction level of customers with mobile food ordering apps is greater than 4 at a significance lev

hi i need help to calculate this statistics on manual calculations. this is the 5 question, A study was conducted to determine whether the e-satisfaction level of customers with mobile food ordering apps is greater than 4 at a significance lev

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Using the same data and information. Please answer this: Should you be encouraging or discouraging credit card sales? In answering this question, consider the following: Is the proportion of credit and non-credit sales significantly different? (a=.05) Is the average sale amount for credit sales different than the average sales amount for non-credit sales? (a=.05)
A director of research for a radio company conducted a survey of listener preferences and collected information on demographics as well as preferred music. When reviewing the results, he discarded all responses in which a non-Hispanic listener chose Spanish-language music as the favorite genre. Is this an acceptable practice in statistics? Why or why not? Please use terminology associated with statistical practices to explain your answer.
Researchers examined the influence of a television program on children's aggressiveness. The number of aggressive responses was measured during an observation period after viewing the television program. Imagine that the known national average for number of aggressive responses typically performed by children who do not watch television is 6.847. Use the data below to conduct an analysis to determine if the number of aggressive responses on average is different from the national average. The data for this study can be found below, answer questions based on data. What is the null and alternative hypotheses in words and symbols? Is the assumption(s) met? Please explain your answer and proceed with the analysis even if the assumption(s) is not met. What do you conclude from your analysis? Based on your response in “c” above, identify and explain the type of error you could be making. responses 9 4 11 12 14 7 12 10 11 8 14 12 8 12 7 10 10 9 5…
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A mother is creating the family budget for next year and wants to come up with a single value to estimate the cost of the water bill every month based on the total from last year divided by 12 months. Which descriptive statistic should she use? O Mode O Median O Mean
When is it better to report the median as the measure of central tendency instead of the mean? Give THREE examples.
Imagine you are in charge of reviewing applications for your academic institution. As a preliminary measure, you want to review only the top 25% of applicants on the basis of standardized test scores. How does calculating the z-score provide additional information regarding how each subject did overall? Provide specific examples of how you would use the information and interpret the scores.
Which of the measures of central tendency do you think you would use the most? Provide one (1) example. Explain what is meant by positive bias and negative bias in relation to the mean, mode, and median. If you were given a choice between the mean, median, or mode to calculate measures to make a decision about a set of data, which of the three measures would you use, and why?
What is the example of qualitative variable in statistics?
A statistician changes her level of significance from .001 to .05. What impact will this change have on her risk of making a Type I and Type II error? Is the change in the level of significance a good decision? Why or why not?
For effective learning, an instructor advised his students to practice solving statistical problems on StatCrunch, a web-based software, at least 7 hours per week. In an in class activity, a student surveyed 15 of her 35 classmates to assess the number of hours they spend per week practicing statistics on StatCrunch. The following data was collected: 6.5, 4, 3.5, 0, 12, 5, 12, 15, 12, 0, 1, 8, 0.5, 2, 7. Is there strong evidence that the mean number of hours of StatCrunch usage in the entire class is larger than 7? Let the confidence level be 95% Use Microsoft excel to do the following. State the hypothesis Construct one sample t-test. Provide the table from excel Draw the rejection region from excel What is the p-value? Conclusion is the hypothesis rejected pr not?