Answered: 1. Die onderdom (X) en bloeddruk (Y)… | bartleby

Algebra & Trigonometry with Analytic Geometry

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter2: Equations And Inequalities

Section2.1: Equations

Problem 75E

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Practical 8
1.
Die onderdom (X) en bloeddruk (Y) van 9 pasiënte is gemeet en die resultate was as
volg: / The age (X) and blood pressure (Y) of 9 patients were measured and the results
are as follows:
Patient/ Pasiënt Age (X) / Ouderdom (X)Blood pressure (Y) / Bloeddruk (Y)
19
122
25
125
3
30
126
4
42
129
46
130
6.
52
135
57
138
8.
62
142
9.
70
145
1.1 Konstrueer 'n puntdiagram vir die data. / Produce a scatterplot of the data.
Vind die lineêre regressielyn om die bloeddruk vanaf ouderdom met behulp van die
metode van kleinste kwadrate te beraam, d.w.s. vind. Trek die lyn op die puntdiagram. /
Find the linear regression line to estimate blood pressure from age by the method of least
squares, i.e. find:. Draw the line on the scatterplot.
1.2
Wat is die beraamde bloeddruk van 'n pasiënt met ouderdom 35? / What is the
estimated blood pressure of a patient aged 35?
1.3
1.4
Bepaal / Find SSE.
1.5
Bepaal / Find
1.6
Bepaal 'n 95% vertrouensinterval vir / Determine a 95% confidence interval for
1.7
Toets die hiptotese teenoor die alternatief. / Test the hypothesis against the alternative
1.8
Stel 'n 95% vertrouensinterval vir die gemiddelde bloeddruk van 'n persoon wat 35
jaar
oud is op. construct a 95% confidence interval for the mean blood pressure of a person
that is 35 years old.
Bereken die korrelasie tussen die ouderdom en bloeddruk data. / Calculate the
correlation between the age and blood pressure data.
1.9
1.10
Bepaal die bepaaldheidkoëffisiënt. / Determine the cefficient of determination.
1.11
Toets die hiptotese teenoor die alternatief. / Test the hypothesis against the
alternative
A marine biologist wants to test the efffect of water temnerature (in Con the nverage

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