How much of a radioactive kind of francium will be left after 10 minutes if the half-life is 5 minutes and you start with 96 gra
1 answer:
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Answer:
Check the explanation
Step-by-step explanation:
Going by the first attached image below we reject H_o against H_1 if obs.
here obs.T=1.879
we accept at 5% level of significance.
i.e there is no sufficient evidence to indicate that the special study program is more effective at 5% level of significance.
1.
this problem is simillar to the previous one except the alternative hypothesis.
Let X_i's denote the bonuses given by female managers and Y_i's denote the bonuses given by male managers.
we assume that independently
We want to test
define
now
the hypothesis becomes
in the third attached image, we use the same test statistic as before
i.e at 5% level of significance there is not enough evidence to indicate a difference in average bonuses .
Let be the number of hours worked at Job A and
the number of hours at Job B. Then
and
From the first equation,
and substituting this into the second gives