A data set about speed dating includes​ "like" ratings of male dates made by the female dates. The summary statistics are n=187 x=6.85 s=2.12 Use a 0.050 significance level to test the claim that the population mean of such ratings is less than 7.00 Assume that a simple random sample has been selected. Identify the null and alternative​ hypotheses, test​ statistic, P-value, and state the final conclusion that addresses the original claim.

A data set about speed dating includes​ "like" ratings of male dates made by the female dates. The summary statistics are n=189​, x bar =6.89​, s=2.21. Use a 0.10 significance level to test the claim that the population mean of such ratings is less than 7.00. Assume that a simple random sample has been selected. Identify the null and alternative​ hypotheses, test​ statistic, P-value, and state the final conclusion that addresses the original claim.

A data set about speed dating includes​ "like" ratings of male dates made by the female dates. The summary statistics are

nequals=195195​,

x overbarxequals=7.537.53​,

sequals=1.971.97.

Use a

0.050.05

significance level to test the claim that the population mean of such ratings is less than

8.008.00.

Assume that a simple random sample has been selected. Identify the null and alternative​ hypotheses, test​ statistic, P-value, and state the final conclusion that addresses the original claim.

A data set about speed dating includes​ "like" ratings of male dates made by the female dates. The summary statistics are

nequals=193193​,

x overbarxequals=7.867.86​,

sequals=2.262.26.

Use a

0.100.10

significance level to test the claim that the population mean of such ratings is less than

8.008.00.

Assume that a simple random sample has been selected. Identify the null and alternative​ hypotheses, test​ statistic, P-value, and state the final conclusion that addresses the original claim.

Research question: Amongst Penn State World Campus students, do those who sleep more tend to have higher grade point averages (GPAs)?

Researchers are going to collect data from a sample of 100 Penn State World Campus students. They will call each student to ask how many hours they slept last night and they will ask each student for their GPA (scale of 0 to 4.0).

7. Describe how researchers could use a convenience sampling method to obtain a sample of 100 World Campus students. In other words, describe the procedures of obtaining a convenience sample in this scenario.

8. Describe how researchers could use a simple random sampling method to obtain a sample of 100 World Campus students. In other words, describe the procedures of obtaining a simple random sample in this scenario.

9. In order to obtain a sample that is representative of the intended population, should researchers use the convenience sampling method from question 7 or the simple random sampling method from question 8?

10. Using this scenario, describe an example of response bias. Response bias would occur in this study if… 1

1. Using this scenario, describe an example of non-response bias. Non-response bias would occur in this study if…

12. If a positive relationship is observed between hours of sleep and GPA, can the researchers conclude that sleeping longer causes higher GPAs? Explain why or why not.

13. What is one possible confounding variable in this study? Explain why this is a possible confounding variable.

1.What is a 'technology dead end’? Why are technology dead ends important for economic growth? Illustrate with an example. Hint: Easterly (2002) talks about all this in ch. 9.

2.In your opinion, does intellectual property (i.e. temporary ownership of ideas) incentivize the creation of more new ideas or does it lower the rate of subsequent innovation and creative expression? Explain briefly how or why. Gilbert (2011) may help you think about this.

What are 3 facts you learned about the brain that you didn't know before? Please be sure to provide examples.

Why do you personally think that learning more about the brain is helpful in studying psychology? Please be sure to provide examples.

Choose a famous individual with a nervous system disorder and explain his/her condition and how the brain has been affected. Please be sure to share specific details to aid in your discussion.

By the due date assigned, you will write the final 2 reports, referring to the departments of Endocrinology and Neurology and use them as your script for your Week 5 Oral Report. Your writing section for this assignment will include 2 paragraphs for each department.

In order to earn the maximum credit for the written report you need to incorporate at least 10 medical terms for each department, using them in a manner that demonstrates your knowledge of their meaning.

Include the major or most common diseases or conditions seen in each department.

Include at least three of the principal procedures that are relevant to each department.

Highlight pertinent laboratory and radiological diagnostic services relevant to each department.

Limit your analysis of each department to two paragraphs.

For your Oral Report this week, read your Written Report aloud and record it.

Financial Issue Discussion #3--Insurance is so expensive that it is not worthwhile. You can just save the money yourself and not make the insurance companies so rich.

Paragraph #1 must start with the heading:  “State your position on the issue”.

Paragraph #2 must start with the heading: “Provide a personal experience that you have had or have read about with that issue”.

Adam Smith, David Ricardo, and Thomas Malthus had strikingly different views of the long-run tendencies of the capitalist system.  Present each writer’s forecast about the future development of capitalism..  State the theoretical differences among these economists that led to these different views of the future.  Include in your discussion the policies that each of the writers regarded as the most appropriate for advancing society