3. Consider a study in which 2205 adolescents age 12 to 19 took a cardiovascular treadmill test.The researchers conducting the study indicated that the sample was selected in such a way thatit could be regarded as representative of adolescents nationwide. Of the 2205 adolescentstested, 750 showed a low level of cardiovascular fitness.a)Construct a 98% confidence interval for the proportion of adolescents age 12 to 19 who showeda low level of cardiovascular fitness.b) Does this sample provide support for the claim that more than 30% of adolescents have a lowlevel of cardiovascular fitness? Use a 0.01 level of significance.i.ii.Use the critical value approach.Use the p-value approach.

Given that Sample size n =2205 Favorable cases x =750 Sample proportion p^=x/n =750/2205 =0.3401

Answered: 3. Consider a study in which 2205…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section: Chapter Questions

Problem 8SGR

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