MATH 10-Summer 2017 Team Members: To be completed as a group Lab #3-Confidence I
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MATH 10-Summer 2017 Team Members: To be completed as a group Lab #3-Confidence Intervals-women's Heights Write the confidence interval you obtained in the first space of the Table below. 3. 4. Next, write the confidence interval on the board. As others in the class write their confidence intervals on the board, copy them into the table. l- G3.4, s-3.3 622,66.27 603,63.7v 609,643V 573, 608 60.4,643 630, 6651 60.0,63 5 62.7,66.1V 60.3, 63.7 62.6,64.9 V 62.4,65.9 61.8, 65.2v 62.3,65.7v 622,65.6 63.0,66.5 62.3,65.8 60.9,64.4 V 60.6,64.0 61.6,65.0v 62.4,65.8V 64.3,67.7 63.0,67.0 62.0,65.4V 61.8,65.2 V 61.1,645 624,65.8V 61.9, 65.3 618,65.2V 62.1, 65 6' 62 8, 653" 61 O 64 63 0 664-61.6 65.0462.3 65 8162 7,662 61.0,64.4 61.0, 64.4 V 59.0,62.4 62.8, 66.2 63.3, 66.7v 61.6,65.0V 60.8,64.2 66.5w Discussion Questions 1. The actual population mean for the 100 heights in the first table is -634. Using the class listing of confidence intervals, count the number of them that contain the value of Divide this number by the total number of confidence intervals generated by the class to determine the percent of confidence intervals that contain the mean . write this percent 2. 0.8806 3. Is the percent of confidence intervals that contai the population mean close to 90%? Suppose we had generated 100 confidence intervals. What do you think would happen to the percent of confidence intervals that contain the population mean? 4. percesnt ot comrident intervalr willhe closer to 90la when we construct a 90% confidence interval, we say that we are 90% confident that the true population mean lies within the confidence interval. Using complete sentences, explain what we mean by this phrase. 5, 10Explanation / Answer
6 )
There are 37 out of 100 are lie in confidnce interval
Percentage = number of data values in lie in confidence interval / Total number of data values
Percentage = 37 / 42 = 88.09 %
Yes this percentage closet to 90%.
7 ) here random variable is height and we are given data values in interval.
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