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The data below are the final exam scores of 10 randomly selected statistics students and the number of hours they slept the night before the exam. Calculate the linear correlation coefficient. n = 10 Ex = 60 0.85 0 0.90 0.7225 2y = 800 Σχ2=385.6 Σy2= 75560 Σxy = 5262.4

The data below are the final exam scores of 10 randomly selected statistics students and the number of hours they slept the night before the exam. Calculate the linear correlation coefficient. n = 10 Ex = 60 0.85 0 0.90 0.7225 2y = 800 Σχ2=385.6 Σy2= 75560 Σxy = 5262.4

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 9PPS
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The data below are the final exam scores of 10 randomly selected statistics students and the number of hours they slept the night before the exam. Calculate the linear correlation coefficient. n = 10 x = 60 0.85 0 0.90 0.7225 Ey = 800 Σχ2=385.6 Σy2 = 75560 Σxy = 5262.4
Transcribed Image Text:The data below are the final exam scores of 10 randomly selected statistics students and the number of hours they slept the night before the exam. Calculate the linear correlation coefficient. n = 10 x = 60 0.85 0 0.90 0.7225 Ey = 800 Σχ2=385.6 Σy2 = 75560 Σxy = 5262.4
Telephone interviews of random sample of 57 dental patients are performed and each person is asked for if they were satisfied with the level of care they received. The pollsters found that found that 89% indicated they were satisfied with their level of care.. The pollsters used this sample to make an inference that approximately 89% of all patients will be satisfied with their level of care.. Identify the statistic and parameter in this scenario. statistic - Sample proportion of patients who are satisfied; parameter - population proportion of patients who will be satisfied. statistic - population proportion of patients who will be satisfied. ; parameter - Sample proportion of patients who are satisfied statistic - population proportion of patients who will be satisfied; parameter - population proportion of patients who will be satisfied. statistic - Sample proportion of patients who are satisfied; parameter - Sample proportion of patients who are satsisfied 000 0
Transcribed Image Text:Telephone interviews of random sample of 57 dental patients are performed and each person is asked for if they were satisfied with the level of care they received. The pollsters found that found that 89% indicated they were satisfied with their level of care.. The pollsters used this sample to make an inference that approximately 89% of all patients will be satisfied with their level of care.. Identify the statistic and parameter in this scenario. statistic - Sample proportion of patients who are satisfied; parameter - population proportion of patients who will be satisfied. statistic - population proportion of patients who will be satisfied. ; parameter - Sample proportion of patients who are satisfied statistic - population proportion of patients who will be satisfied; parameter - population proportion of patients who will be satisfied. statistic - Sample proportion of patients who are satisfied; parameter - Sample proportion of patients who are satsisfied 000 0
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