atient Weight before Weight loss program Weight after Weight loss program A 150 148 B 220 221 C 175 170 D 200 200 E 300 295 F 290 293 G 285 282 H 195 194 I 295 292 Identify the hypotheses being tested: HINT: Small sample, we are testing the DIFFERENCE, We want to know if it is less than when AFTER - BEFORE. Basically we believe the weight loss program lowers the participant’s weight. Improvement means weight went down. Given: level alpha is 0.01. QUESTION: What is the Ho and Ha? a) Ho: The average difference (After - Before program) in weight is 0. Ha: The average difference (After - Before program) in weight not equal to 0. b) Ho: The average difference (After - Before program) in weight is 0. Ha: The average difference (After - Before program) in weight less than 0. c) Ho: The average difference (After - Before program) in weight is 232.78. Ha: The average difference (After - Before program) in weight less than 232.78. d) Ho: The average difference (After - Before program) in weight is 234.44. Ha: The average difference (After - Before program) in weight less than 234.44.
|
Patient |
Weight before Weight loss program |
Weight after Weight loss program |
|
A |
150 |
148 |
|
B |
220 |
221 |
|
C |
175 |
170 |
|
D |
200 |
200 |
|
E |
300 |
295 |
|
F |
290 |
293 |
|
G |
285 |
282 |
|
H |
195 |
194 |
|
I |
295 |
292 |
Identify the hypotheses being tested: HINT: Small sample, we are testing the DIFFERENCE, We want to know if it is less than when AFTER - BEFORE. Basically we believe the weight loss program lowers the participant’s weight. Improvement means weight went down. Given: level alpha is 0.01. QUESTION: What is the Ho and Ha?
a) Ho: The average difference (After - Before program) in weight is 0. Ha: The average difference (After - Before program) in weight not equal to 0.
b) Ho: The average difference (After - Before program) in weight is 0. Ha: The average difference (After - Before program) in weight less than 0.
c) Ho: The average difference (After - Before program) in weight is 232.78. Ha: The average difference (After - Before program) in weight less than 232.78.
d) Ho: The average difference (After - Before program) in weight is 234.44. Ha: The average difference (After - Before program) in weight less than 234.44.
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