Is the difference between the mean annual salaries of statisticians in Region 1 and Region 2 more than $4000? 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? Region 1 X1 = $67,700 o1 = $8875 Region 2 X2 = $61,000 o2 = $9250 n2 = 44 n = 48 Click here to view. page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. Choose the correct null and alternative hypotheses below. О В. Но: и - в+ 4000 H, H - H2 = 4000 O E. H9: H1 - H2 > 4000 H,: H1- H25 4000 OC. Họ: H1 -H 2 4000 H. H1-H2 < 4000 OF. Ho: H -H2 > 4000 H, H -H2 2 4000 O A. Ho: H -H2 = 4000 H H-2 # 4000 O D. Ho: H1- H2 5 4000 H: H1 -H2 > 4000 Determine the critical value(s). (Round to two decimal places as needed. Use a comma to separate answers as needed.) Determine the rejection region. Select the correct choice below, and, if necessary, fill in any answer boxes to complete your choice. Click to select your answer(s).

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Is the difference between the mean annual salaries of statisticians in Region 1 and Region 2 more than $4000? 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?
Region 1
X1 = $67,700
Region 2
X2 = $61.000
02 = $9250
n2 = 44
01 = $8875
n1 = 48
Click here to view page 1 of the standard normal distribution table.
Click here to view page 2 of the standard normal distribution table.
Determine the critical value(s).
Zo =
(Round to two decimal places as needed. Use a comma to separate answers as needed.)
Determine the rejection region.
Select the correct choice below, and, if necessary, fill in any answer boxes to complete your choice.
(Round to two decimal places as needed.)
O A. z<
O B. z<
and z>
O C. z>
Calculate the standardized test statistic for p, - P2-
Transcribed Image Text:Is the difference between the mean annual salaries of statisticians in Region 1 and Region 2 more than $4000? 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? Region 1 X1 = $67,700 Region 2 X2 = $61.000 02 = $9250 n2 = 44 01 = $8875 n1 = 48 Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. Determine the critical value(s). Zo = (Round to two decimal places as needed. Use a comma to separate answers as needed.) Determine the rejection region. Select the correct choice below, and, if necessary, fill in any answer boxes to complete your choice. (Round to two decimal places as needed.) O A. z< O B. z< and z> O C. z> Calculate the standardized test statistic for p, - P2-
Is the difference between the mean annual salaries of statisticians in Region 1 and Region 2 more than $4000? 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?
Region 1
X1 = $67,700
Region 2
01 = $8875
n1 = 48
X2 = $61,000
02 = $9250
n2 = 44
Click here to view page 1 of the standard normal distribution table,
Click here to view page 2 of the standard normal distribution table.
Choose the correct null and alternative hypotheses below.
O C. Ho: H1 - H2 2 4000
H3: H1 - H2 < 4000
O B. Ho: H1 - H2 # 4000
O A. Ho: H1 - H2 = 4000
H3: H1 - H2 # 4000
Ha: H1 - 12 = 4000
O D. Ho: H1 - H25 4000
Ha: H1 - H2 > 4000
DE. Ho: H1 - H, > 4000
Ha: H1 - H2 s 4000
O F. Ho: H1 - H, > 4000
Ha: H1 -H2 2 4000
Determine the critical value(s).
Zo =
(Round to two decimal places as needed. Use a comma to separate answers as needed.)
Determine the rejection region.
Select the correct choice below, and, if necessary, fill in any answer boxes to complete your choice.
Click to select your answer(s).
Transcribed Image Text:Is the difference between the mean annual salaries of statisticians in Region 1 and Region 2 more than $4000? 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? Region 1 X1 = $67,700 Region 2 01 = $8875 n1 = 48 X2 = $61,000 02 = $9250 n2 = 44 Click here to view page 1 of the standard normal distribution table, Click here to view page 2 of the standard normal distribution table. Choose the correct null and alternative hypotheses below. O C. Ho: H1 - H2 2 4000 H3: H1 - H2 < 4000 O B. Ho: H1 - H2 # 4000 O A. Ho: H1 - H2 = 4000 H3: H1 - H2 # 4000 Ha: H1 - 12 = 4000 O D. Ho: H1 - H25 4000 Ha: H1 - H2 > 4000 DE. Ho: H1 - H, > 4000 Ha: H1 - H2 s 4000 O F. Ho: H1 - H, > 4000 Ha: H1 -H2 2 4000 Determine the critical value(s). Zo = (Round to two decimal places as needed. Use a comma to separate answers as needed.) Determine the rejection region. Select the correct choice below, and, if necessary, fill in any answer boxes to complete your choice. Click to select your answer(s).
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