For each of the following situations suppose H0mu1 mu2 is b

For each of the following situations, suppose H0:mu1 = mu2 is being tested against HA:mu1

Solution

a)

Using table/technology, getting the critical t value,

t(crit) = -1.713871528

This is a left tailed test, so there is significnat evidence for Ha if ts < tcrit.

Thus, as ts > tcrit, there is no significant evidence for Ha. [answer]

b)

Using table/technology, getting the critical t value,

t(crit) = -1.475884049

This is a left tailed test, so there is significnat evidence for Ha if ts < tcrit.

Thus, as ts < tcrit, there is significant evidence for Ha. [answer]

c)

Using table/technology, getting the critical t value,

t(crit) = -1.336757167

This is a left tailed test, so there is significnat evidence for Ha if ts < tcrit.

Thus, as ts > tcrit, there is no significant evidence for Ha. [answer]

d)

Using table/technology, getting the critical t value,

t(crit) = -2.472659912

This is a left tailed test, so there is significnat evidence for Ha if ts < tcrit.

Thus, as ts < tcrit, there is significant evidence for Ha. [answer]