Is it a completely randomized design or a matched pair design or a block design? Outline the design of this experiment like Figure 7.4 in page 174.Assignment toblocks is notrandomSubjects(530 childrenwith asthma)\Exposed tosmoke (285)Not exposed-to smoke (245)RandomassignmentRandomassignmentGroup 1 School-based(140)careGroup 2 Usual care(145)Group 1 School-based(125)careGroup 2 Usual care(120)ComparesymptomsComparesymptoms

Subjects (530 children with asthma)\ Assignment to blocks is not random Exposed to smoke (285) "Not exposed to smoke (245) Random assignment - Random assignment - Group 1 School-based (140) care Group 2 Usual care (145) Group 1 (125) Group 2- (120) School-based care Usual care Compare symptoms Compare symptoms

Subjects (530 children with asthma)\ Assignment to blocks is not random Exposed to smoke (285) "Not exposed to smoke (245) Random assignment - Random assignment - Group 1 School-based (140) care Group 2 Usual care (145) Group 1 (125) Group 2- (120) School-based care Usual care Compare symptoms Compare symptoms

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Prospective drivers who enrol in Smart Driver Driving School have always been taught by a conventional teaching method. The driving school has many branches across provinces. Last year, among all students that took driving lessons from the school in a certain province, 80% passed the provincial road test. This year, the teaching committee came up with a new teaching method. The committee randomly assigned half of its 2400 students enrolled this year to receive the conventional teaching method and the remaining half to receive the new teaching method. In a random sample of 100 students who received the conventional teaching method, 78% passed the road test. Part i) To test if the passing rate has decreased from last year for students who received the conventional teaching method, what will be the null hypothesis? A. The proportion of 100 students who received the conventional teaching method and subsequently passed the road test this year equals 0.78.B. The proportion of 1200 students…
Prospective drivers who enrol in Smart Driver Driving School have always been taught by a conventional teaching method. The driving school has many branches across provinces. Last year, among all students that took driving lessons from the school in a certain province, 80% passed the provincial road test. This year, the teaching committee came up with a new teaching method. The committee randomly assigned half of its 2400 students enrolled this year to receive the conventional teaching method and the remaining half to receive the new teaching method. In a random sample of 100 students who received the conventional teaching method, 77% passed the road test. Compute the PP-value: (your answer must be expressed as a proportion and rounded to 4 decimal places.)
The FAA is interested in knowing if there is a difference in the average number of on-time arrivals for four of the major airlines. The FAA believes that the number of on-time arrivals varies by airport, therefore, a randomized block design is used for the study. To control for this variation, they randomly select 100100 flights for each of the major airlines at each of four randomly selected airports and record the number of on-time flights. Can the FAA conclude that there is a significant difference among the average number of on-time arrivals for the four major airlines? The results of the study are as follows. Average Number of On-Time Arrivals Airport Airline A Airline B Airline C Airline D Airport A 9090 8282 8080 8383 Airport B 8282 7070 7474 7979 Airport C 8787 8484 7676 8888 Airport D 9090 7979 7979 9090 Copy DataANOVA Source of Variation SSSS dfdf MSMS Rows 181.6875181.6875 33 60.562560.5625 Columns 278.6875278.6875 33 92.895892.8958 Error…
The International Business Society conducts a series of managerial surveys to detect challenges that international managers encounter and what strategies help them overcome those challenges. A previous study showed that employee retention is the most critical organizational challenge currently confronted by international managers. One strategy that may impact employee retention is a successful employee recognition program. The International Business Society randomly selected 423 small firms and 192 large firms. The study showed that 326 of the 423 small firms have employee retention programs compared to 167 of the 192 large organizations. At the 0.01 level of significance, is there evidence of a significant difference between small firms and large firms concerning the proportion that has employee recognition program? Find the p-value and interpret its meaning? Construct and interpret a 99% confidence interval estimate for the difference between small firms and large firms concerning…
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