squared deviation score. 3. Researchers sampled a group of participants who completed a sleep intervention study and identified the 95% confidence interval of the mean hours of sleep as (8.15,8.35). For this example, the probability that a confidence interval will contain the true population mean is 95%, which is also known as a. alpha (a). o b. power. O c. the confidence level. O d. the Type 1 error rate. a. 4. A researcher conducts a study to increase the activity level (e.g. minutes of aerobic activity per day) of children between the ages of 6 and 17. The researcher finds a 95% confidence interval of the mean of 59.5 to 61.4. Which of the following is correct? if we take another sample from the same population, then there is only a 5% chance the new sample will not contain the sample mean. O b. There was a 95% chance that the procedure would yield a confidence interval containing the population mean minutes of activity for the group sampled. O c. If the null hypothesis was u = 60, then it can be rejected. O d. There is a 95% chance that the true mean lies in the 59.5 - 61.4 range. squared deviation score. 3. Researchers sampled a group of participants who completed a sleep intervention study and identified the 95% confidence interval of the mean hours of sleep as (8.15,8.35). For this example, the probability that a confidence interval will contain the true population mean is 95%, which is also known as a. alpha (a). o b. power. O c. the confidence level. O d. the Type 1 error rate. a. 4. A researcher conducts a study to increase the activity level (e.g. minutes of aerobic activity per day) of children between the ages of 6 and 17. The researcher finds a 95% confidence interval of the mean of 59.5 to 61.4. Which of the following is correct? if we take another sample from the same population, then there is only a 5% chance the new sample will not contain the sample mean. O b. There was a 95% chance that the procedure would yield a confidence interval containing the population mean minutes of activity for the group sampled. O c. If the null hypothesis was u = 60, then it can be rejected. O d. There is a 95% chance that the true mean lies in the 59.5 - 61.4 range