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SOC 3811/5811: Synchronous Class - Shared screen with speaker view
Madelyn L Wolf
13:54
Are we having class on Thursday this week?
Caitlin M Boucha
14:11
No, just extended office hours
Madelyn L Wolf
14:21
Thank you!!
Kyli R Nault
14:27
Is there lab this week?
Ryan A Moon
15:05
Is the test similar format?
Ida Ky
15:08
What weeks are covered in the exam?
Alexandra Aurelius
15:15
yes there’s lab this week
Madlyn J Ott
15:32
So its not cumulative ?
Caitlin M Boucha
15:35
Material 9/29 to 10/15
Twisha A Boradia
16:53
Is there lab this week?
Maggie L Griffin
17:26
yes
Bassam Zahran
17:27
Can we go over some of the latest problem set?
Zaynab A Somani
19:58
Care these slides posted?
Zaynab A Somani
20:02
*are
Madlyn J Ott
23:49
to find the standard deviation why do you square it and then square root it
Ashley Ochoa
24:10
^^
Liam Martin
28:49
why is k 0?
Neeraj Rajasekar
29:01
"0" is the outcome of interest right now
Liam Martin
29:41
okay thats what i was missing
Liam Martin
29:50
it would be offered by the problem
Linda Lubi
33:42
so expected value is pretty much just the mean, correct?
Neeraj Rajasekar
33:53
More or less, Its the mean of a probability distribution
Lyndsy J Chase
34:04
I thought Binomials only had two possible outcomes, aren't there three here? 0,1, and 2?
Linda Lubi
34:10
okay, thank you!
Neeraj Rajasekar
34:31
Lyndsey's Question: yes, but the 0 1 2 represents the SUM of a different number of yes-no outcomes
Lyndsy J Chase
34:56
Ah, okay thanks
Neeraj Rajasekar
35:07
Np
Ewura-Esi Ewuakye
38:00
Do we always use .00?
Linda Lubi
38:24
when is it that you have to do 1-.0069, when it’s less than??
Neeraj Rajasekar
38:46
Essentially. You'll see the 1 minus... in coming examples
Ryan A Moon
38:50
cant we just look at positive 1.5 on the table and subtract from 1
Peach Schmidtlein
38:53
Why did you use -1.5 if the value is 1.5?
Ewura-Esi Ewuakye
41:21
I thought negative values equal the positive values?
Neeraj Rajasekar
41:45
Sorta. They're mirror images. the area to the RIGHT of the positive is the same as to the LEFT of the negative
Ashley Ochoa
42:10
when do you know to use the negative vs positive z table?
Neeraj Rajasekar
42:19
It will be dependent on the questio
Ewura-Esi Ewuakye
42:45
Why did it have a different number if it’s mirrored?
Neeraj Rajasekar
42:58
the table tells you LEFT all the time, regardless of positive v negative Z
Tom J Moreland
52:31
When the syllabus says "sampling distribution of x-bar," that just means sampling distribution of the sample mean, right?
Neeraj Rajasekar
53:39
Yes. Sampling distributions are (hypothetically) sketched after you derive an X-bar (i.e the sample mean)
Ian M Gullickson
58:43
do you always put the absolute value of the z score?
Kayla T Truong
01:00:15
will we get points dedu
Kayla T Truong
01:00:36
Deducted points if we don’t convert it to percentage
Neeraj Rajasekar
01:02:14
I'd recommend you convert to a percentage.
Ashley Ochoa
01:07:48
how did you get 1.5?
Ryan A Moon
01:07:51
Conceptually why is t used in mean questions and z used in promotions
Ryan A Moon
01:07:54
proportions
Carly Wolff
01:08:10
Can you go to the slide where it’s typed out
Liam Martin
01:09:05
what is the symbol you've underlined in the bottommost equation
Liam Martin
01:09:17
ahuh
Ashley Ochoa
01:10:12
how did you get 1.5? is it just 2.473 x what is next to it?
Neeraj Rajasekar
01:10:42
Yep. 2.47 * 3.2 / root(28) ish
Neeraj Rajasekar
01:11:00
comes out to like 8 / 5.2 ish, approx. 1.5
Ryan A Moon
01:25:32
This isn’t two tailed
Neeraj Rajasekar
01:28:21
You are correct that they both CAN work. but don't get bogged down with that
Ian M Gullickson
01:30:45
Thank you!
Caitlin M Boucha
01:30:50
Thank you
Mikhaela A Arunikaa de Silva
01:30:53
Thank you