19) Which variables will you use to explore the relationship? Classify them as categorical/quantitative and as explanatory and response. 20) Create the appropriate graphical summary. Include the statistics that summarize the relationship between the variables. Without doing a hypothesis test, do you think this sample’s graph and statistics provide evidence of a relationship between the variables in the population? 21) Define the parameter and state the appropriate hypotheses you will use to see if the sample provides strong evidence of a relationship between the variables.
analyze the question below with give data in the picture and answer the questions Please.
- Explore the relationship between grade level and sleep time.
19) Which variables will you use to explore the relationship? Classify them as categorical/quantitative and as explanatory and response.
20) Create the appropriate graphical summary. Include the statistics that summarize the relationship between the variables. Without doing a hypothesis test, do you think this sample’s graph and statistics provide evidence of a relationship between the variables in the population?
21) Define the parameter and state the appropriate hypotheses you will use to see if the sample provides strong evidence of a relationship between the variables.
22) Name the procedure you are using with the significance level.
23) Calculate the appropriate test statistic and p-value. Include a screenshot.
24) Write an appropriate conclusion.
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Part3: Reflect on Statistical Practices
Directions: frome the given problem above answer the following questions please.
25) How was the sample collected? Is the sample large enough? Be careful each test has a different way of testing this.
26) Recall, a causal relationship suggests that a particular explanatory variable (the cause) has an effect on the response variable of interest (the effect). Explain why the hypothesis test you used in part 3 do not test for causal relationship (review causation Week 2 Day 1 Notes).
27) Who would find the results of this hypothesis test be useful in making decisions? How might the results influence decision-making?
28) When we use random samples, we need to be aware of the potential consequences of type I/type II errors. Review your conclusion and determine which type of error might have been made. What does it mean to make this error? What might the consequence of this type of error be?
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