Which research design(s) is (are) typically guided by an initial hypothesis?

Answers:

A. Causal

B. Descriptive

C. Exploratory

D. Exploratory and causal

E. Descriptive and causal

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misseylaLv10

23 Jul 2022

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I need help conducting a z-test for my assignment. The question states, "You want to determine if Canadians are nicer (less rude) than Americans. Americans 'niceness' score is µ=2.4 with a standard deviation of 1.6. You get a sample of n=36 Canadians to complete the same niceness questionnaire. You calculate descriptive statistics for your sample as M=2.9 and s=1.9. As this is exploratory research, use an alpha of .10. Conduct a z-test on the information above. Make sure to note: 1.) the formula, 2.) the null and alternative hypothesis, 3.) the critical value, 4.) calculate the result (show calculation in case of error), 5.) What is the statistical decision, 6.) What does this mean in plain english?"

Thanks for the help!

yellowimpala697

1. Matt, the manager, wants to estimate the mean wait time for customers to check out in his Mini-Market. He randomly selects customers and determines the mean wait time is minutes. Define the following for this exercise:

a) Is the data collected qualitative or quantitative?

b) Variable (x):

c) Population of Interest:

d) Sample:

e) Parameter of Interest and Statistic: Do you expect the parameter and the statistic to be the same value? Explain.

f) Discuss the use of descriptive and inferential statistics in this exercise.

g) Is the variable, x, discrete or continuous?

2. Identify the population and sample for the following examples:

The P.E. coach of a middle school interested in the mean height for the graders in the school. He randomly selects graders and measures the height of each.

a) Population:

b) 7thgraders Sample:

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fuchsiatermite35

a)List two similarities between an independent-measures ANOVA and a repeatedmeasures ANOVA. (2 marks) b. List two differences between an independent-measures ANOVA and a repeatedmeasures ANOVA. (2 marks) c. You were asked by a friend to explain what a repeated-measures design is. Provide a research example of a repeated-measures design and explain why your example represents this type of design. (