9.1,9.2,9.3, 9.4 and 9.5 Hypothesis Test:s Name: 1. Definition:Null Hypothesis (
ID: 3374972 • Letter: 9
Question
9.1,9.2,9.3, 9.4 and 9.5 Hypothesis Test:s Name: 1. Definition:Null Hypothesis (Ho) 2. Definition: Alternative Hypothesis (Ha) 3. Mathematical Symbols used in Ho and Ha ?? Ha 4. We want to test if it takes fewer than 45 minutes to teach a lesson plan. State the null and alternative hypotheses. Fill in the correct symbol (2,,>) for the null and alternative hypotheses. b. Ha: ?--45 5, A researcher claims that 45.3% of PCC students have texted while driving in last two weeks. Identify the original claim. State the null and alternative hypothesis.Explanation / Answer
(1)Null Hypothesis-A null hypothesis is a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove.
Examples:-1."Hyperactivity is unrelated to eating sugar"
2."Plant growth rate is unaffected by the presence of cadmium in the soil."
(2)Alternate hypothesis-The alternative hypothesis is the hypothesis used in hypothesis testing that is contrary to the null hypothesis. It is usually taken to be that the observations are the result of a real effect (with some amount of chance variation superposed).
For example, if your null is “I'm going to win up to $1000” then your alternate is “I'm going to win more than $1000.”
(3)null hypothesis-H0
Alternative hypothesis-H1 and Ha
(4)
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