there is a new program geared towards reducing the number of robberies in an area. the program is based in churches and

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there is a new program geared towards reducing the number of
robberies in an area. the program is based in churches and schools
and provides education to the participants about how to decrease
the likelihood of being victimized in their community. the
participants are given an assessment before they begin the program
and after they complete the program. this assessment is meant to
measure their level of awareness about reducing victimization. we
took a sample of 34 people (n = 34). we found the mean of
difference is equal to 4.26. the standard deviation of mean
differences (SD) is equal to .98
(a) what is the null hypothesis?
(b) calculate the t value at the .05 level
(c) state your conclusion