Safari File Edit View History Bookmarks Window Help * * 27% [4] Fri 3:53 PM A uk.instructure.com WileyPLUS HW4 My Questions | bartleby (a) Give notation for the quantity we are estimating. Applications. Account Dashboard Or "Origin Courses Groups en Shof Calendar Inbox (b) Give the correct notation for the sample statistic. (? Help OP Or FEB 21 Safari File Edit View History Bookmarks Window Help * * 27% [4] Fri 3:53 PM A uk.instructure.com WileyPLUS HW4 My Questions | bartleby (c) Use Statkey or other technology to find the value of the sample statistic. Applications. Round your answer to three decimal places. Sample statistic = i Account Dashboard "Origin Courses (d) Use Statkey or other technology to find the standard error for the estimate. Groups Round your answer to three decimal places. en Shof Standard error = i Calendar Inbox (? Help (e) Use the standard error to give a 95% confidence interval for the quantity we are estimating. Round your answers three decimal places. The interval is i to 1-00 ONDR FEB 21
This exercise uses data from a study designed to examine the effect of doing synchronized movements (such as marching in step or doing synchronized dance steps) and the effect of exertion on many different variables, such as pain tolerance and attitudes towards others. In the study, 264 high school students in Brazil were randomly assigned to one of four groups reflecting whether or not movements were synchronized (Synch = yes or no) and level of activity (Exertion = high or low).1 Participants rated how close they felt to others in their group both before (CloseBefore) and after (CloseAfter) the activity, using a 7-point scale (least close to most close). Participants also had their pain tolerance measured using pressure from a blood pressure cuff, by indicating when the pressure became too uncomfortable (up to a maximum pressure of 300 mmHg). Higher numbers for this PainTolerance measure indicate higher pain tolerance. The full dataset is available in SynchronizedMovement.
What Proportion Go to Maximum Pressure?
We see that 75 of the 264 people in the study allowed the pressure to reach its maximum level of 300 mmHg, without ever saying that the pain was too much (MaxPressure = yes). Use this information to estimate the proportion of people who would allow the pressure to reach its maximum level.
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