00:01
Hello students, in this question, given values are mu equal to 24, n equal to 150 and x bar equal to 24 .3 and s equal to 3 .8.
00:14
So here we have to define the null hypothesis and alternative hypothesis, h naught is mu less than or equal to 24 and h1 is mu greater than 24.
00:24
So here in b, students were randomly sampled.
00:31
So option c is correct.
00:35
So students were randomly sampled.
00:39
Students were randomly sampled.
00:45
Sampled and option a is also correct.
00:51
The sample data come from, the sample data come from a population, a population which is approximately normal, approximately normal.
01:09
And in part c, we have to find out the p -value.
01:12
So in part d, the statistic, the statistic t is equal to x bar minus mu naught by mu naught by s by root n.
01:23
So it is equal to 3 .8, 3 .8 by square root of 150 equal to 0 .3103.
01:36
So t equal to 20.
01:40
Sorry, it is sc value.
01:44
It is sc value...