Self-Quiz Unit 2

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University of the People *

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1281

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Statistics

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Nov 24, 2024

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Self-Quiz Unit 2 Started on Tuesday, 28 November 2023, 5:20 PM State Finished Completed on Tuesday, 28 November 2023, 5:20 PM Time taken 12 secs Grade 0.00 out of 10.00 ( 0 %) Question 1 Not answered Marked out of 1.00 Flag question Question text A hypothesis is a statement about the value of a population parameter. Question 1Select one: True False Feedback The correct answer is 'True'. Question 2 Not answered Marked out of 1.00 Flag question Question text When P ̂ can be modelled using a normal distribution, what is the form of the confidence interval for p? Question 2Answer a. P ̂ + z* x SE b. P ̂ - z* x SE c.

P ̂ z* x SE Feedback Your answer is incorrect. The correct answer is: P ̂ z* x SE Question 3 Not answered Marked out of 1.00 Flag question Question text Match the graph to the corresponding hypothesis test: Question 3Answer a. H 0 : p = null value and H A : p≠ null; the sided hypothesis tests b. H 0 : p = null value and H A : p < null; the sided hypothesis tests c. H 0 : p = null value and H A : p > null; the sided hypothesis tests Feedback Your answer is incorrect. The correct answer is: H 0 : p = null value and H A : p > null; the sided hypothesis tests Question 4 Not answered

Marked out of 1.00 Flag question Question text Assuming all conditions are met for the difference of two sample proportions to be modeled using a normal distribution, what is the standard error of Question 4Answer a. b. c. Feedback Your answer is incorrect. The correct answer is: Question 5 Not answered Marked out of 1.00 Flag question Question text What is the standard error (SE) for a sample proportion ( P ̂ ) that is nearly normal? Question 5Answer a. b.

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c. p(1-p) Feedback Your answer is incorrect. The correct answer is: Question 6 Not answered Marked out of 1.00 Flag question Question text Failing to reject the null hypothesis when the alternative is true is: Question 6Answer a. Type I Error b. Type II Error c. Both Type I and Type II error Feedback Your answer is incorrect. The correct answer is: Type II Error Question 7 Not answered Marked out of 1.00 Flag question

Question text Match the graph to the corresponding hypothesis test: Question 7Answer a. H 0 : p = null value and H A : p≠ null; the sided hypothesis tests b. H 0 : p = null value and H A : p < null; the sided hypothesis tests c. H 0 : p = null value and H A : p > null; the sided hypothesis tests Feedback Your answer is incorrect. The correct answer is: H 0 : p = null value and H A : p≠ null; the sided hypothesis tests Question 8 Not answered Marked out of 1.00 Flag question Question text In the context of hypothesis testing, what does the use of double negatives tell us? Question 8Answer a. when we reject the null hypothesis, it is because it is incorrect. b. it is used to communicate that while we are not rejecting a position, we are also not saying it is correct. c.

it is used to communicate that while we are not rejecting a position, we are saying it is correct. Feedback Your answer is incorrect. The correct answer is: it is used to communicate that while we are not rejecting a position, we are also not saying it is correct. Question 9 Not answered Marked out of 1.00 Flag question Question text What do we call the value hypothesized for the parameter un H 0 ? Question 9Answer a. the null value. b. the alternate value. c. the odd value. Feedback Your answer is incorrect. The correct answer is: the null value. Question 10 Not answered Marked out of 1.00 Flag question

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Question text Match the graph to the corresponding hypothesis test: Question 10Answer a. H 0 : p = null value and H A : p≠ null; the sided hypothesis tests b. H 0 : p = null value and H A : p < null; the sided hypothesis tests c. H 0 : p = null value and H A : p > null; the sided hypothesis tests Feedback Your answer is incorrect. The correct answer is: H 0 : p = null value and H A : p≠ null; the sided hypothesis tests

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