ion institutions, police protection, libraries, and other local public services.
ID: 3221762 • Letter: I
Question
ion institutions, police protection, libraries, and other local public services. A household's real estate tax bill is based on the value or all households in a certain country was $7.94. A random sample of 50 rural households results in a sample mean real estate bil el of significance o 0.05. Complete parts (a) and (b). why is a large 0 Graph/Chart ewed right with Frequency 18 ughly normal w 16 ewed left with d 14 uniform distribut L bill for rural household ue approach an 10- 4 8 12 16 20 24 Real estate bill per $1,000 Real estate bill per S1,000 Print Done
Explanation / Answer
Hypotheses:
H0: mu=7.94
H1:mu=/=7.94
test statistic:
to=(xbar-mu)/(s/sqrt n), where, xbar is sample mean, mu is population mean, s is sample standard deviation, and n is sample size.
=(6.51-7.94)/(6.15/sqrt 50)
=-1.64
p value at alpha=0.05, and 49 degrees of freedom: 0.107.
The p value is not less than alpha=0.05, therefore, fail to reject H0. Insufficient sample evidence to conclude that rural household has different mean real estate tax bill. Option A.
From histogarm, it seems that the distribution is skewed right with outliers. Option A.
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