hapters 811 Help Save & Exi According to the Census Bureau, 3.33 people reside i
ID: 3340906 • Letter: H
Question
hapters 811 Help Save & Exi According to the Census Bureau, 3.33 people reside in the typical American household. A sample of 21 households in Arizona retirement communities showed the mean number of residents per household was 2.86 residents. The standard deviation of this sample was 132 residents. At the 10 significance level, is it reasonable to conclude the mean number of residents in the retirement community household is less than 3.33 persons? 42 State the null hypothesis and the afternate hypothesis (Round your answer to 2 decimel places) b. State the decision nule for 10 significance level (Negstive amount should be indicoreed by.a minus sign Round your answer to 3 decimal places)Explanation / Answer
If sample data are not consistent with the statistical hypothesis, the hypothesis is rejected. Null hypothesis. The nullhypothesis, denoted by H0, is usually the hypothesis that sample observations result purely from chance.
a) H0: 3.33
H1: < 3.33
b) sig level = 0.1
dof = 20
t critical = - 1.325
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