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Lana71 [14]
3 years ago
10

a teacher is experimenting with computer- based instruction. In which situation could the teacher use a hypothesis test for a di

fference in two population means
Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
8 0

Answer:

(i) She gives each student a pretest. Then she teaches a lesson using a computer program. Afterwards, she gives each student a posttest. The teacher wants to see if the difference in scores will show an improvement.

Step-by- Step

The situation is a case of matched or paired samples since the samples are dependent. The two measurements are drawn from the same pair of individuals The parameter that is tested using matched pairs is the population mean and this is what teacher intends to use a hypothesis test for.

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The frequency table is attached below.

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Frequency table is used to list the occurence of a thing or product and it helps to calculate and sort down easily.

                                 <u>Contains caramel</u>   <u>Do not contain caramel</u>    Total

<u>Contains chocolate</u>                    10                                   2                       12

<u>Do not contain  </u>                            3                                    3                       6

<u>chocolate</u>

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I Hope this Helps!
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