Description
To prepare for this Discussion:
- Review the Learning Resources for this week related to frequency distributions and graphic displays of data.
- Using the SPSS software, open the General Social Survey dataset found in this week’s Learning Resources.
- Next, create a figure or table from a few selected variables within the dataset.
- Finally, think about what is good about how the data are displayed in the figure or table you created and what is not so good.
By Day 3
Post your display of the table or figure you created and provide an explanation of why this would be the best way to display the data provided.
Be sure to support your Main Post and Response Post with reference to the week’s Learning Resources and other scholarly evidence in APA Style.
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John is the owner of John's Jolly Oil Change. John is experimenting with a new oil change process and is trying to determine if the new process takes less time than the old process. John is comparing sample mean times to evaluate his hypothesis about the population (total number of oil changes). Over the period of a week, he took a random sample of oil changes using both the old and new processes. Using the information John provided, you ran a t-test for independent samples. These are the results (? = .05).
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When you begin to share the information with John, he immediately says, "Oh my gosh, look at that P value, it is 9! That is bad, right? What does that E-05 mean at the end of the number?"
How will you explain the results to John?
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Hypothesis Test for 2 Population Means using Excel's Data Analysis (YouTube 5:39) (Links to an external site.)
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Most Popular Content
What is the marginal relative frequency of 12th graders?
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John is the owner of John's Jolly Oil Change. John is experimenting with a new oil change process and is trying to determi ...
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John is the owner of John's Jolly Oil Change. John is experimenting with a new oil change process and is trying to determine if the new process takes less time than the old process. John is comparing sample mean times to evaluate his hypothesis about the population (total number of oil changes). Over the period of a week, he took a random sample of oil changes using both the old and new processes. Using the information John provided, you ran a t-test for independent samples. These are the results (? = .05).
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When you begin to share the information with John, he immediately says, "Oh my gosh, look at that P value, it is 9! That is bad, right? What does that E-05 mean at the end of the number?"
How will you explain the results to John?
First, watch this video to become familiar with running and interpreting a t-test in Excel.
Hypothesis Test for 2 Population Means using Excel's Data Analysis (YouTube 5:39) (Links to an external site.)
Now, think about how you will respond to John. Answer the following questions.
What is the hypothesis in this scenario?
Did the new oil change process take less or more time? How do you know?
In the scenario, did you conduct a one or two-tailed test?
What is the P value? (Round to 3 decimal places)
Do you think (as John does) that the result is not statistically significant?
Do the results “prove” anything?
6 pages
Discussion Board Questions
D4.5.1 Comparing and contrasting a between-groups design and a within-subjects design In a between-groups design, every st ...
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MTH410 CSU Global Probability and Professional Life Questions
Do you use probability in your profession or real life? You most likely do. For example, the chance of rain tomorrow is 27 ...
MTH410 CSU Global Probability and Professional Life Questions
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