Which of the following leads to rejecting the null:
|Tobt| < alpha |
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|Tcrit| > |Tobt| |
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|Tcrit| < |Tobt| |
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Sig. > alpha |
Which of the following leads to rejecting the null: |Tobt| < alpha |Tcrit| > |Tobt| |Tcrit|...
QUESTION 17 Which of the following leads to rejecting the null: O Tobt| < alpha o Terit > Tobt| O Tcrit) < Tobt| Sig. > alpha
The higher the alpha level, a. the lower the probability of rejecting the null hypothesis. b. the greater the probability of rejecting the null hypothesis. c. the larger the sample size has to be to reject the null hypothesis. d. the more desirable the two-tailed test. When solving the formula for finding Z(obtained) with sample proportions in the two-sample case, we must first estimate a. the population proportion. b. the critical region. c. the ratio of the sample proportions. d....
Assume a researcher published a paper rejecting a null hypothesis at the 1% level of significance (that is, α = 0.01), which of the following statements is true? The finding may not be significant since it was not tested at an alpha level of 0.05 You cannot make any assumptions about the alpha at the 5% level without first calculating the value from the published data It is 5 times as likely the null hypothesis would be accepted at the...
Answer the following questions with “it increases,” “it decreases,” “it stays the same,” or “not enough information to answer.” As |tobt| increases, what happens to the p value? As |tobt| increases, what happens to the value of alpha? As N increases, what happens to |tcrit|? As the number of tails in a test increases from one to two, what happens to |tcrit|?
QUESTION 49 Assume a researcher published a paper rejecting a null hypothesis at the 1 % level of significance (that is, alpha-001). O a. The finding may not be significant since it was not tested at an alpha level of 0.05 b. You will also reject the null hypothesis at the 5% level of significance since alpha level of 0.01 is a more stringent test ] c. You cannot make any assumptions about the alpha at the 5% level without...
Would Not Approve of Driving Drunk Would Not Approve of Driving Drunk n1=40 n2=25 X¯1=2.1 X¯2=8.2 s1=1.8 s2=1.9 John Worrall and colleagues (2014) found that the fear of losing the good opinion of one’s family and peers kept people from driving home drunk. Let’s say we have two independent random samples of people: those who think that their peers would disapprove of them from driving drunk, and those who think that their peers would either not care or approve of...
21) A researcher wants to know whether there is a difference in the physical activity level of children during the morning and afternoon. He observes a total of 40 children (20 boys and 20 girls) from randomly selected schools during morning and afternoon recess and gives each child a score (out of 50) based on how much of the time they spend sitting, standing, walking or running. Each child receives a score in the morning and another in the afternoon....
In hypothesis testing, which of the following results in a type I error? Rejecting a true null hypothesis Rejecting a true alternative hypothesis Rejecting a false null hypothesis Rejecting a false alternative hypothesis
not rejecting the null hypothesis means that the assigned value under the null is the true population value. true or false
a is .05 and N-25, the probability of rejecting the null hypothesis if the mull hypothesis is true is: a. .os b..95 c. 05/25 - 01 d..95/25 = .19 e. insufficient information to answer as the popu 4. The sampling distribution of the mean always has the same distribution of the raw scores. a. mean b. standard deviation c. skew d. a and b e. all of the above S. If the sample size on which a standard deviation is...