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Hypothesis testing (one sample t test): 1) H0: Mean = 7.5 HA: Mean not equal to...

Hypothesis testing (one sample t test):

1)

H0: Mean = 7.5

HA: Mean not equal to 7.5

X Bar = 8.5, SD = 1.2. n = 670, confidence interval: 95%

2)

H0: Mean = 125

HA: Mean no equal to 125

X Bar = 135, SD = 15, n = 500, confidence interval: 95%

Math   Statistics-And-Probability   
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