00:01
Hello student, in the given question, we have to first formulate the null and alternative hypothesis.
00:07
So, the null hypothesis is mu is greater than or equals to 4715 versus the alternative hypothesis is mu is less than 4715.
00:21
Now, to find the standardized test statistic, we can use here the formula for t test as t is equals to x bar minus mu upon s upon under root of n.
00:34
So, the given values are x bar is equals to 4817, then s is equals to 5389 and n is equals to 52.
00:49
Now, substituting the value in the formula, we get t is equals to 4817 minus 4715 upon 5389 upon under root of 52.
01:05
So, which is equals to, which is equals to the value 1 .358.
01:17
Now, to find the p value, we need to consult the t distribution table or we use statistical software...