All Fresh Seafood is a wholesale fish company based on the east coast of the U.S. Catalina Offshore Products is a wholesale fish company based on the west coast of the U.S. Table #9.2.5 contains prices from both companies for specific fish types ("Seafood online," 2013) ("Buy sushi grade," 2013). Data is in following table: Fish All Fresh Seafood Prices Catalina Offshore Products Prices Cod 19.99 17.99 Tilapi 6.00 13.99 Farmed Salmon 19.99 22.99 Organic Salmon 24.99 24.99 Grouper Fillet 29.99 19.99 Tuna 28.99 31.99 Swordfish 23.99 23.99 Sea Bass 32.99 23.99 Striped Bass 29.99 14.99 Do the data provide enough evidence to show that a west coast fish wholesaler is more expensive than an east coast wholesaler? Test at the 5% level. (iv) Determine sample mean of differences x⎯⎯div Determine sample mean of differences x¯d Enter in decimal form to nearest ten-thousandth. Examples of correctly entered answers: 0.0001 0.0020 0.3000 11.2485 (v) Determine sample standard deviation of differences sd Enter in decimal form to nearest ten-thousandth. Examples of correctly entered answers: 0.0001 0.0020 0.0500 0.3000 0.5115 (vi) Calculate and enter test statistic Enter value in decimal form rounded to nearest ten-thousandth, with appropriate sign (no spaces). Examples of correctly entered answers: –2.0104 –0.3070 +1.6000 +11.0019
Q3B
All Fresh Seafood is a wholesale fish company based on the east coast of the U.S. Catalina Offshore Products is a wholesale fish company based on the west coast of the U.S. Table #9.2.5 contains prices from both companies for specific fish types ("Seafood online," 2013) ("Buy sushi grade," 2013). Data is in following table:
|
Fish |
All Fresh Seafood Prices |
Catalina Offshore Products Prices |
|
Cod |
19.99 |
17.99 |
|
Tilapi |
6.00 |
13.99 |
|
Farmed Salmon |
19.99 |
22.99 |
|
Organic Salmon |
24.99 |
24.99 |
|
Grouper Fillet |
29.99 |
19.99 |
|
Tuna |
28.99 |
31.99 |
|
Swordfish |
23.99 |
23.99 |
|
Sea Bass |
32.99 |
23.99 |
|
Striped Bass |
29.99 |
14.99 |
Do the data provide enough evidence to show that a west coast fish wholesaler is more expensive than an east coast wholesaler? Test at the 5% level.
(iv) Determine sample mean of differences x⎯⎯div Determine sample mean of differences x¯d
Enter in decimal form to nearest ten-thousandth. Examples of correctly entered answers:
0.0001
0.0020
0.3000
11.2485
(v) Determine sample standard deviation of differences sd
Enter in decimal form to nearest ten-thousandth. Examples of correctly entered answers:
0.0001 0.0020 0.0500 0.3000 0.5115
Enter value in decimal form rounded to nearest ten-thousandth, with appropriate sign (no spaces). Examples of correctly entered answers:
–2.0104 –0.3070 +1.6000 +11.0019
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