Consider the following competing hypotheses and accompanying sample data. (You may find it useful to reference the appropriate table: z table or t table) Họ: µ1 – µ2 = 5 HA: µ1 – µ2 * 5 x2 = 43 = 57 s1 = 21.5 ni = 22 s2 = 15.2 n2 = 18 Assume that the populations are normally distributed with equal variances. a-1. Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.) Test statistic

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Consider the following competing hypotheses and accompanying sample data. (You may find it useful to reference the appropriate
table: z table or t table)
Ho: µ1 - 42 = 5
HA: H1
H2 # 5
X1
= 57
X2
= 43
S1 = 21.5
S2
15.2
ni = 22
n2 = 18
Assume that the populations are normally distributed with equal variances.
a-1. Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 3
decimal places.)
Test statistic
Transcribed Image Text:Consider the following competing hypotheses and accompanying sample data. (You may find it useful to reference the appropriate table: z table or t table) Ho: µ1 - 42 = 5 HA: H1 H2 # 5 X1 = 57 X2 = 43 S1 = 21.5 S2 15.2 ni = 22 n2 = 18 Assume that the populations are normally distributed with equal variances. a-1. Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.) Test statistic
b. At the 5% significance level, can you conclude that the difference between the two means differs from 5?
H0. At the 5% significance level,
we
conclude that the difference between the means differs from 5.
Transcribed Image Text:b. At the 5% significance level, can you conclude that the difference between the two means differs from 5? H0. At the 5% significance level, we conclude that the difference between the means differs from 5.
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