A high school principal was concerned about the time his students were spending on home work in a week He randomly selected 50 students and found that mean time on home work was 18.50. Assume that the populat standard deviation was 10.2 hrs. Use a 0.10 to test his claims that h students spend significantly less that 20 hours in a week. In this case, null hypothesis Ho is =

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A high school principal was concerned about the time his students were
spending on home work in a week He randomly selected 50 students and
found that mean time on home work was 18.50. Assume that the population
standard deviation was 10.2 hrs. Use a = 0.10 to test his claims that his
students spend significantly less that 20 hours in a week. In this case,
null hypothesis Ho is
Ομ > 20
Ομ < 20
Ομ > 20
Ομ
< 20
μ<
Transcribed Image Text:A high school principal was concerned about the time his students were spending on home work in a week He randomly selected 50 students and found that mean time on home work was 18.50. Assume that the population standard deviation was 10.2 hrs. Use a = 0.10 to test his claims that his students spend significantly less that 20 hours in a week. In this case, null hypothesis Ho is Ομ > 20 Ομ < 20 Ομ > 20 Ομ < 20 μ<
A high school principal was concerned about the time his students were
spending on home work in a week He randomly selected 50 students and
found that mean time on home work was 18.50. Assume that the population
standard deviation was 10.2 hrs. Use a = 0.10 to test his claims that his
students spend significantly less that 20 hours in a week. In this case,
null hypothesis Ho is
Ομ > 20
Ομ < 20
Ομ > 20
Ομ
< 20
μ<
Transcribed Image Text:A high school principal was concerned about the time his students were spending on home work in a week He randomly selected 50 students and found that mean time on home work was 18.50. Assume that the population standard deviation was 10.2 hrs. Use a = 0.10 to test his claims that his students spend significantly less that 20 hours in a week. In this case, null hypothesis Ho is Ομ > 20 Ομ < 20 Ομ > 20 Ομ < 20 μ<
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