Directions: For each of the following, identify the random variable/s and formulate the null and alternative hypotheses (in words and symbols). 1. The federation of private school teachers has developed a new evaluation instrument that they claim has higher Teacher reliability by producing less error in evaluation. In the past, the HANDBOOK ON Evaluation o mean number of errors in the evaluation was 20%. ASSESSING and IMPROVING PERFORMANCE Ho: H1: Photo is taken from https://www.routledge.com/Handbo on-Teacher-Evaluation-with-CD-ROM/Stronge- Tucker/p/book/9781930556584 2. In an advertisement, a certain brand of shampoo is claiming that

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ISBN:9781119256830
Author:Amos Gilat
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What I Can Do
Activity 4. Hypothesis Pa More!
Directions: For each of the following, identify the random variable/s and formulate the null
and alternative hypotheses (in words and symbols).
1. The federation of private school teachers has developed a
new evaluation instrument that they claim has higher Teacher
reliability by producing less error in evaluation. In the past, the
HANDBOOK ON
Evaluation
mean number of errors in the evaluation was 20%.
ASSESSING
and IMPROVING
PERFORMANCE
Ho:
H1:
Photo is taken from https://www.routledge.com/Handbook-
on-Teacher-Evaluation-with-CD-ROM/Stronge-
Tucker/p/book/9781930556584
2. In an advertisement, a certain brand of shampo0 is claiming that
the use of this product will make the hair grow faster. It is known
that the mean length of growing hair over thirty days is 2 cm
Ho:
H1:
Photo is taken from https://stylecaster.com/beauty/best-
hair-growth-shampoos/
Transcribed Image Text:What I Can Do Activity 4. Hypothesis Pa More! Directions: For each of the following, identify the random variable/s and formulate the null and alternative hypotheses (in words and symbols). 1. The federation of private school teachers has developed a new evaluation instrument that they claim has higher Teacher reliability by producing less error in evaluation. In the past, the HANDBOOK ON Evaluation mean number of errors in the evaluation was 20%. ASSESSING and IMPROVING PERFORMANCE Ho: H1: Photo is taken from https://www.routledge.com/Handbook- on-Teacher-Evaluation-with-CD-ROM/Stronge- Tucker/p/book/9781930556584 2. In an advertisement, a certain brand of shampo0 is claiming that the use of this product will make the hair grow faster. It is known that the mean length of growing hair over thirty days is 2 cm Ho: H1: Photo is taken from https://stylecaster.com/beauty/best- hair-growth-shampoos/
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