A researcher conducts a study and finds a mean of 65 and 95% confidence interval range of 60-70 . This means that
a. there is a 95% probability that the true mean is within 60 and 70.
b. 95% of the data points fell between 60 and 70.
c. the researcher is 95% confident that the mean found in this study was 65.
d. if the study was repeated multiple times, the calculated confidence interval would be between 60 and 70 in 95% of those studies.
e. if the study was repeated multiple times, the calculated confidence interval (which would be unique for each study) would encompass the true population mean in 95% of those studies.
E
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