right tailed, ??
left tailed, p
two tailed, ??
right tailed, p
left tailed, ??
two tailed, ??
Ho: p=0.399 H1: p>0.399
The sample evidence leads the president to conclude that the proportion of students who earn a bachekor???s degree within six years in greater than 0.399, when in fact the proportion is 0.399
The sample evidence leads the president to conclude that the proportion of students who earn a bachekor???s degree within six years is not greater than 0.399, when the proportion is greater than 0.399
Ho: ??=$245,700
H1: ??<$245,700
The sample evidence led the real estate broker can conclude that the mean price of an existing single family home is lower in her neighborhood when in fact the mean price is not lower.
The sample evidence led the real estate broker can conclude that the mean price of an existing single family home is not lower in her neighborhood when in fact the mean price is lower.
Ho: ??=0.7 psi H1: ??<0.7 psi
The quality control manager rejects the hypothesis that the variability in the pressure required is 0.7 psi, when the true variability is 0.7 psi.
The quality control manager fails to reject that the variability in the pressure required is 0.7 psi, when the true variability is less than 0.7 psi.
Ho:??=$48.79
H1: ?????$48.79
The sample evidence led the researcher to believe the mean monthly cell phone bill is different from $48.79, when in fact the mean bill is $48.79
The sample evidence did not led the researcher to believe the mean monthly cell phone bill is different from $48.79, when in fact the mean bill is different from $48.79