- μ2 ≥ 0 - μ2 < 0 42 5 B X2 = 269 $2 = 19 n2 = 8 ulate the value of the test statistic under the assumption that the population variances are equal. d by a minus sign. Round final answer to 3 decimal places.) stic

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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Consider the following competing hypotheses and accompanying sample data drawn independently from normally distributed
populations. (You may find it useful to reference the appropriate table: z table or ttable)
HO: μ1
HA: M1
μ₂ = 0
M2 < 0
X1 = 242
S1 = 25
n1 = 8
X2 = 269
S2 19
n2
= 8
Test statistic
=
a-1. Calculate the value of the test statistic under the assumption that the population variances are equal. (Negative value should be
indicated by a minus sign. Round final answer to 3 decimal places.)
Transcribed Image Text:Consider the following competing hypotheses and accompanying sample data drawn independently from normally distributed populations. (You may find it useful to reference the appropriate table: z table or ttable) HO: μ1 HA: M1 μ₂ = 0 M2 < 0 X1 = 242 S1 = 25 n1 = 8 X2 = 269 S2 19 n2 = 8 Test statistic = a-1. Calculate the value of the test statistic under the assumption that the population variances are equal. (Negative value should be indicated by a minus sign. Round final answer to 3 decimal places.)
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