Question

A group of students estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listed below. Use a 0.0 significance level to test the claim that these times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably good at estimating one minute? 77 93 49 71 51 32 71 72 78 56 73 79 105 96 730 O A. Ho: p = 60 seconds H:#60 seconds OC. Ho: u#60 seconds H: 4 = 60 seconds OB. Ho: u = 60 seconds Hu>60 seconds OD. Ho: u = 60 seconds Hu<60 seconds Determine the test statistic. 14.63 (Round to two decimal places as needed.) Determine the P-value. | (Round to three decimal places as needed.) State the final conclusion that addresses the original claim. Ho. There is correct. It evidence to conclude that the original claim that the mean of the population of estimates is 60 second V that, as a group, the students are reasonably good at estimating one minute. Click to select your answer(s).

please show work.. also how to get answer on stat crunch

Answer 1

sample mean         x=	71.733
sample size             n=	15.000
sample std deviation s=	18.9829
std error sx=s/√n=	4.9014
test stat t='(x-μ)*√n/s=	2.39
p value                                 =	0.031

(here level of significance not given, if it is 0.05 , reject Ho, there is sufficient evidence to conclude that ,,,,,,,,,,not correct. It does not appears that as a group,,,,,,, )

(if it is 0.01 do not reject Ho, there is not sufficient evidence to conclude that ,,,,,,,,,,not correct. It appears that as a group,,,,,,, )