Blood pressure: A blood pressure measurement consists of two numbers: the systolic pressure, which is the maximum pressuretaken when the heart is contracting, and the diastolic pressure, which is the minimum pressure taken at the beginning of theheartbeat. Blood pressures were measured, in millimeters of mercury, for a sample of 7 adults. The following table presents theresults.SystolicDiastolic115831339115494119691237711275157103Send data to ExcelCompute the least-squares regression line for predicting diastolic pressure (y) from systolic pressure (x). Round the intermediatecalculations to at least six decimal places. Round the slope and y-intercept values to at least four decimal places.Regression line equation: y =Save For LaterSubmit AssignmentCheck AnswerPrivacy Center© 2021 McGraw Hill LLC. All Rights Reserved. Terms of Use47°F

The Regression line equation is given by ŷ = a + bX Where, a and b are the intercept and slope of…

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A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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The accompanying data table contains the prices and weights of the diamonds in 10 rings offered for sale. The prices are 4 carats an Xough d belo Data (Daund both The weight in carats and price in dollars for 10 diamond rings Weight 0.29 0.32 0.34 0.17 0.36 0.36 0.12 0.14 0.23 0.26 Price 924 881 1,039 445 1,073 1,034 120 320 665 733 Print Done - rings. ble.
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The age of a tree can be determined by counting each annual growth ring in the trunk of the tree. A common measure of the size of a tree is the "diameter at breast height" DBH. "Breast height" is defined as 4 ½ feet above the uphill side of the tree. Consider the following data on 12 northern red oaks from southwestern Wisconsin: 11 15 28 1.5 1.0 6.0 45 12 52 16.5 11.0 | 10.5 9.0 Age(years) | 97 93 88 81 75 57 1.0 DBH(inch) | 12.5 12.5 8.0 9.5 d) What is the range of validity of this model?
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 118 and standard deviation of 15. Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher. a. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places. % b. If you sampled 2000 people, how many would you expect to have BP> 160? Give your answer to the nearest person. Note:I had a bit of an issue encoding rounded answers, so try rounding both up and down if there's an issue! people 24 31 3 3 c. Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1? 3 3 3 . 96
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A group of 100 people, who lived at varying distances (in kilometers) from an island nuclear power station, were asked if they thought a full evacuation of the area was required, when it went critical. The researches wanted to know if the opinion to evacuate or not depended on how far from the reactor people lived. Partial results of the questionnaire are shown in the table below. 0-3 km distance 3 -6 km distance 6 -9 km distance 9- 12 km distance Totals Evacuation needed X X X 51 Evacuation not X X XX needed Totals 28 28 23 XX XX You are doing a Chi Square test for independence. What is the expected value of the number of people living within a radius of 0-3 km who would say that evacuation was needed? XX denotes row/column totals. Give your answer to 2 decimal places.

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