The table below shows the number of hours per day 11 patients suffered from headaches before and after 7 weeks of soft tissue therapy. At a=0.01, is there enough evidence to conclude that soft tissue therapy helps to reduce the length of time patients suffer from headaches? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (). Patient Daily headache hours (before) 2.9 3.2 3.4 1.8 4.4 1.8 3.8 2.5 1.8 3.3 3.8 Daily headache hours (after) 1.7 3.6 22 1.1 1.1 14 3.5 2.2 1.2 2.9 4.3 123 456 78 9 10 11 O Let ua be the hypothesized mean of the patients' daily headache hours before therapy minus their daily headache hours after it. State H, and H. Choose the correct answer below. e. Ho: s0 OA Ho: Hsd H Hd H Hd OE Ho: Hgd H HO p> Prf : "H (b) Find the critical value(s) and identify the rejection region(s). to= 2.764 (Use a comma to separate answers as needed. Type an integer or a decimal. Round to three decimal places as needed) Identify the rejection region(s). Choose the correct answer below. A t>2.764 OB, t<-2764 or t>2.764 OC <-3.169 or t>3.169 OD 1<-3.169 (c) Calculate d. d= (Type an integer or a decimal. Round to three decimal places as needed.)
The table below shows the number of hours per day 11 patients suffered from headaches before and after 7 weeks of soft tissue therapy. At a=0.01, is there enough evidence to conclude that soft tissue therapy helps to reduce the length of time patients suffer from headaches? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (). Patient Daily headache hours (before) 2.9 3.2 3.4 1.8 4.4 1.8 3.8 2.5 1.8 3.3 3.8 Daily headache hours (after) 1.7 3.6 22 1.1 1.1 14 3.5 2.2 1.2 2.9 4.3 123 456 78 9 10 11 O Let ua be the hypothesized mean of the patients' daily headache hours before therapy minus their daily headache hours after it. State H, and H. Choose the correct answer below. e. Ho: s0 OA Ho: Hsd H Hd H Hd OE Ho: Hgd H HO p> Prf : "H (b) Find the critical value(s) and identify the rejection region(s). to= 2.764 (Use a comma to separate answers as needed. Type an integer or a decimal. Round to three decimal places as needed) Identify the rejection region(s). Choose the correct answer below. A t>2.764 OB, t<-2764 or t>2.764 OC <-3.169 or t>3.169 OD 1<-3.169 (c) Calculate d. d= (Type an integer or a decimal. Round to three decimal places as needed.)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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