Chose the most accurate statement regarding confidence intervals:
A) In most cases, researchers set the level of confidence at 95%, so they can state that they are 5% certain that the lower and upper range of the calculated confidence interval captures the mean score of the population.
B) In most cases, researchers set the level of confidence at 5%, so they can state that they are 95% certain that the lower and upper range of the calculated confidence interval captures the mean score of the population.
C) In most cases, researchers set the level of confidence at .5%, so they can state that they are 95% certain that the lower and upper range of the calculated confidence interval captures the mean score of the population.
D) In most cases, researchers set the level of confidence at 95%, so they can state that they are 95% certain that the lower and upper range of the calculated confidence interval captures the mean score of the population.
Correct Answer:
Verified
Q4: Confidence intervals provide a range with a
Q5: In confidence intervals, if the lower and
Q6: Researchers make a Type II error when
Q7: A scientific hypothesis is a :
A) A
Q8: Independent t-tests determine are used to determine
Q9: For negative correlations, as the scatter plot
Q11: If a research null hypothesis is correct
Q12: T-tests are used to determine if the
Q13: Correlation coefficients define a _ between two
Q14: It is essential to remember that with
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