A scientist was asked to test the effect of a new vitamin for rats. His hypothesis was that young rats that had vitamins added to their food would gain weight faster than young rats fed a normal diet. He predicted that if young rats were fed vitamins, then they would gain more weight by the end of the experiment. He tested the effect of adding vitamins to some of the rats' diet by measuring the amount of weight each rat gained after three months. He then determined the average weight gained in each group. To analyze his results, he put the data he collected into the table shown below. Rats fed normal diet Rats fed normal diet and vitamins Difference in weight Starting Ending Starting Ending Difference Rat # Rat # weight weight in weight weight weight 256 g 320 g 64 g 1 249 g 342 g 93 g 1 274 g 347 g 73 g 221 g 307 g 86 g 268 g 59 g 3 278 g 381 g 103 g 209 g Average weight gain Average weight gain 94 g 65 g What did the data show about the hypothesis? 2. 2.
A scientist was asked to test the effect of a new vitamin for rats. His hypothesis was that young rats that had vitamins added to their food would gain weight faster than young rats fed a normal diet. He predicted that if young rats were fed vitamins, then they would gain more weight by the end of the experiment. He tested the effect of adding vitamins to some of the rats' diet by measuring the amount of weight each rat gained after three months. He then determined the average weight gained in each group. To analyze his results, he put the data he collected into the table shown below. Rats fed normal diet Rats fed normal diet and vitamins Difference in weight Starting Ending Starting Ending Difference Rat # Rat # weight weight in weight weight weight 256 g 320 g 64 g 1 249 g 342 g 93 g 1 274 g 347 g 73 g 221 g 307 g 86 g 268 g 59 g 3 278 g 381 g 103 g 209 g Average weight gain Average weight gain 94 g 65 g What did the data show about the hypothesis? 2. 2.
Chapter7: Weight Management
Section: Chapter Questions
Problem 1CA
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Transcribed Image Text:A. The data supported the hypothesis.
B. The data rejected the hypothesis.
C. The data did not test the hypothesis.
D. There was not enough data to support or reject the hypothesis.
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Transcribed Image Text:Question 10 of 10
A scientist was asked to test the effect of a new vitamin for rats. His
hypothesis was that young rats that had vitamins added to their food would
gain weight faster than young rats fed a normal diet. He predicted that if
young rats were fed vitamins, then they would gain more weight by the end of
the experiment. He tested the effect of adding vitamins to some of the rats'
diet by measuring the amount of weight each rat gained after three months.
He then determined the average weight gained in each group. To analyze his
results, he put the data he collected into the table shown below.
Rats fed normal diet
Rats fed normal diet and vitamins
Starting Ending
Starting Ending
Difference
Difference
Rat #
weight
in weight
Rat #
weight
weight
in weight
weight
1
256 g
320 g
64 g
249 g
342 g
93 g
2.
274 g
347 g
73 g
2
221 g
307 g
86 g
209 g
268 g
59 g
3
278 g
381 g
103 g
Average
weight
gain
Average
weight
gain
65 g
94 g
What did the data show about the hypothesis?
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