FIN- Principle Of Investment

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I’m studying for my Business class and need an explanation.

8 questions in total, please answer all the questions follow the lecture instructions, all the resources are attached, thank you!Chi-Square Test of Independence
I need an explanation for this Statistics question to help me study.

Context – A Real Court Case
In the early 1970s, a young man challenged an Oklahoma state law that prohibited the sale of 3.2% beer to males under age 21 but allowed its sale to females in the same age group. The case (Craig v. Boren, 429 U.S. 190, 1976) was ultimately heard by the U.S. Supreme Court. The state of Oklahoma argued that the law improved traffic safety. One of the three main pieces of data presented to the court was the result of a “random roadside survey.” This survey gathered information on gender and whether or not the driver had been drinking alcohol in the previous 2 hours. A total of 619 drivers under 21 years of age were included in the survey.
Prompt
A test of independence may be appropriate if we are examining the relationship between two categorical variables in one population. For this situation what is the population? What is the explanatory variable? What is the response variable? What are the hypotheses for the Test of Independence? State hypotheses with reference to the context of the scenario. The spreadsheet of the data looked like this:
Roadside survey data
Driver Gender Alcohol in lasttwo hours?
Driver 1 M Yes
Driver 2 F No
Driver 3 F Yes
… … …
Driver 619 M No
We will not use the raw data. Instead we will use the summarized data shown in the table below.
Roadside survey summary
Drank alcohol in last 2 hours? Yes No Totals
Male 77 404 481
Female 16 122 138
Totals 93 526 619
Use StatCrunch to find expected counts, the Chi-square test statistic and the P-value. direction Copy and paste your StatCrunch table into your post.
How many males in the sample are expected to answer yes to question about alcohol consumption in the last two hours? Show how to calculate this expected count and explain what it means relative to the hypotheses.
Explain how we know that this data meets the conditions for use of a chi-square distribution.
State a conclusion at a 5% level of significance. Do you think that the data supports the Oklahoma law that forbids sale of 3.2% beer to males and permits it to females?Johari Window Diagram: nursing coursework help
I’m stuck on a Communications question and need an explanation.

Using the Johari Window model, diagram your relationship with a romantic partner or close friend. What insights can you draw from this? How did information move from your Hidden quadrant to your Open quadrant, or from your Blind to Open quadrant? Now diagram one for a person you don’t know very well, can be personal or professional. What information is in your Open quadrant with your partner/friend but not in the Open quadrant with your acquaintance? What other differences are there? How does this impact your relationship? What cues do you use to determine if you want to take a relationship to a deeper level? Your paper should be a 2-3 page paper citing specific examples and providing detailed analysis incorporation reading and textbook material. If outside sources are used, proper citation of the source should be included.

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