Is the difference between the mean Region 1 Region 2 annual salaries of statisticians in Region 1 and Region 2 more than $7000? To decide, you select a random sample of statisticians from each region. The results of each survey are shown to the right. At a = 0.10, what should you conclude? X1 = $67,900 X2 = $64,000 01 = $8950 02 = $9125 n1 = 48 n2 = 46 z< and z> Calculate the standardized test statistic for µ, -µ2. z = (Round to two decimal places as needed.)

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Is the difference between the mean
Region 1
Region 2
annual salaries of statisticians in
Region 1 and Region 2 more than
$7000? To decide, you select a
random sample of statisticians from
each region. The results of each
survey are shown to the right. At
a = 0.10, what should you conclude?
X1 = $67,900
X2 = $64,000
01 = $8950
02 = $9125
n1 = 48
n2 = 46
z<
and z>
Calculate the standardized test statistic for µ, -µ2.
z =
(Round to two decimal places as needed.)
Transcribed Image Text:Is the difference between the mean Region 1 Region 2 annual salaries of statisticians in Region 1 and Region 2 more than $7000? To decide, you select a random sample of statisticians from each region. The results of each survey are shown to the right. At a = 0.10, what should you conclude? X1 = $67,900 X2 = $64,000 01 = $8950 02 = $9125 n1 = 48 n2 = 46 z< and z> Calculate the standardized test statistic for µ, -µ2. z = (Round to two decimal places as needed.)
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