A researcher reported that there were two independent groups with 25 in each group. Each group received a different treatment. An alpha value of 0.05 was used. Based on the data analysis using a computer, t = 2.11, p = 0.03, group 1 mean = 88, and group 2 mean = 81. Based on this information, identify the true answer.
A) The null hypothesis is accepted.
B) The alternate hypothesis that the population 1 mean is larger is accepted.
C) The alternate hypothesis that the population 2 mean is larger is accepted.
D) Based on the information provided, it is impossible to make a decision.
E) Based on the information provided, the researcher could have made two different decisions.
Correct Answer:
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Q1: When a researcher says after a statistical
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Q4: Select the false statement below.
A) If a
Q5: Identify the false statement about two-group comparisons
Q6: Select the false statement below concerning chi-square
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Q8: The key difference of inferential statistics from
Q9: Type I error occurs when:
A) a false
Q10: Type II error occurs when:
A) a false
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