Provide the appropriate responses.
a researcher claims that more than 35% of the people following a particular diet will experience
increased energy. of 285 randomly selected subjects who followed the diet, 38% notice an increase in
their energy level.
12. find the number of success among the 285 trials. round to the nearest person.
(5 pts)
{show all necessary work.}
= (# of test subjects
= 285 x 38% - 285 x
108 successes among 285
success rate)
0.38 = 108.3=
trials
108
13. test the claim using the p-value method at the significant level of 0.05. be sure to do the
following;
identify the null and alternative hypothesis
calculate the test statistic, p-value (or range of p-values), or critical value that is needed
for the method.
determine to reject or fail to reject the null hypothesis.
iv. write the final statement that addresses the original claim.
{show all necessary work}
or
{use technology where applicable and include all navigations and inputs}
(15 pts)
14. if we were asked to use the confidence interval method to test the claim and the same level
significance, what would be the appropriate confidence level.
(show all necessary work)
(4 pts)
a) 80%
b) 90%
c) 95%
d) 99%