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Null Hypothesis Quiz 1 (20 MCQs)

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1. A statement whose validity is tested on the basis of a sample is called?
2. A soccer player wants to see if working with a new coach will improve her field goal percentage. Without a coach, she makes 50% of her shots. The null Hypothesis:Her field goal percentage stays the same after getting a new coach. The t-value of of her sample is 1.925 and the critical value is 1.007.
3. A hypothesis which develops while planning the research
4. The rejection probability of Null Hypothesis when it is true is called as?
5. Does taking aspirin every day reduce the chance of having a heart attack? The null hypothesis is aking aspirin daily does not affect heart attack risk. A survey of 300 peoples was conducted and the sample date showed that the t-vaue is 1.689 and the critical value is 0.593
6. Of the data is located _____ standard deviation(s) above the mean and _____ standard deviation(s) below the mean.
7. The weight of the average 6th grade student's backpack (with books in it) is 18.4 lbs. The principal of the school thinks that the backpack does not weight 18.4 lbs. A survey of 180 students was conducted and the sample date showed that the t-vaue is 1.089 and the critical value is 1.932
8. A statement made about a population for testing purpose is called?
9. Identify the correct null hypothesis:Is the proportion of babies born male different from 50%? The null hypotheses is the babies born male is not difference from 50&. In a sample of 200 babie were surveyed. The The t-value of the sample is of 1.279 and the critical value is 1.453.
10. If a Null hypothesis denoted as
11. A statement made about a population for testing hypothesis
12. A hypothesis which defines the population distribution is called?
13. Shantay did the project to see if teens are better at math than adults. Which of the following represents her null hypothesis?
14. A Null hypothesis has level of significance 9% for what values level of significance it will be rejected
15. You perform a sample test and the test showed that t-value is greater than the critical value. What do you do?
16. The rejection probability of null hypothesis when it true is called
17. If the assumed hypothesis is tested for rejection considering it to be true is called?
18. If the null hypothesis is false then which of the following is accepted?
19. When a hypothesis is stated negatively it is called
20. Which hypothesis is predicts that there is no relationship between the independent variables and dependent variable

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