Wow my textbook is crazy. I'm completely lost.
Can someone walk me through this problem so I can do the rest of my homework, please?
I need to use a one-sample sign test to do this.
"A large group of senior citizens enrolled for adult evening classes at a university. To get a quick check on whether there has been an increase from last year's average age of 65.4 years, the director of the program takes a random sample of 15 of the enrollees, getting 68, 62, 70, 64, 61, 58, 65, 86, 88, 62, 60, 71, 60, 84, and 61 years.
I know the null hypothesis is 65.4 and the alternative hypothesis>65.4.
The level of significance is .05."
I have a TI-89, so if you use yours, tell me what you did but I'd rather everything be done the long way.
I understand that you need to make all of the values greater than 65.4 pluses and and the values less than 65.4 minuses. I understand the number of plus signs equals x(which I think equals 6). But I don't get how to find the probability and anything after that. Help please!!
Thanks!!!
Can someone walk me through this problem so I can do the rest of my homework, please?
I need to use a one-sample sign test to do this.
"A large group of senior citizens enrolled for adult evening classes at a university. To get a quick check on whether there has been an increase from last year's average age of 65.4 years, the director of the program takes a random sample of 15 of the enrollees, getting 68, 62, 70, 64, 61, 58, 65, 86, 88, 62, 60, 71, 60, 84, and 61 years.
I know the null hypothesis is 65.4 and the alternative hypothesis>65.4.
The level of significance is .05."
I have a TI-89, so if you use yours, tell me what you did but I'd rather everything be done the long way.
I understand that you need to make all of the values greater than 65.4 pluses and and the values less than 65.4 minuses. I understand the number of plus signs equals x(which I think equals 6). But I don't get how to find the probability and anything after that. Help please!!
Thanks!!!