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Joe SienaProf
Registrace 15. 03. 2020
Independent Samples T-test Example 1
An example of T-test for means using independent samples.
zhlédnutí: 125
Video
Hypothesis Test for Dependent samples
zhlédnutí 65Před 4 lety
An example of an HT for mean given dependent samples.
Independent T-test for Example 2
zhlédnutí 54Před 4 lety
An example of T-test for mean giving independent samples.
Chi Square test of fit via Excel
zhlédnutí 213Před 4 lety
An example of ChiSquare test for goodness of fit via Excel.
Linear Regression Example 2 via Excel.
zhlédnutí 103Před 4 lety
Another example of linear regression using Excel.
Chi Square Test for Independence
zhlédnutí 126Před 4 lety
An example of ChiSquare test for independence using Excel.
Hypothesis Test for proportion
zhlédnutí 114Před 4 lety
An Example of a HT for the population proportion using Excel.
Hypothesis Test for Mean sigma unknown ex3
zhlédnutí 72Před 4 lety
Using Excel we go through a HT for the Mean with sigma unknown. This is example 3.
Hypothesis Test for Mean Sigma Unknown 2
zhlédnutí 100Před 4 lety
HT for the mean with sigma unknown example 2 in Excel.
Hypothesis Test for the mean sigma unknown
zhlédnutí 196Před 4 lety
HT for the mean with sigma known in Excel.
Hypothesis Test for the mean sigma known
zhlédnutí 155Před 4 lety
HT for the mean with sigma known and in Excel
Introduction to Hypothesis Testing
zhlédnutí 218Před 4 lety
A general overview of HT for the upcoming videos.
Confidence Interval for the population proportion
zhlédnutí 112Před 4 lety
Confidence Interval for the population proportion
Sample Sizes for Confidence Intervals.
zhlédnutí 123Před 4 lety
Sample Sizes for Confidence Intervals.
Confidence Interval for mean with sigma unknown
zhlédnutí 131Před 4 lety
Confidence Interval for mean with sigma unknown
Confidence Interval for the mean using a dataset in Excel
zhlédnutí 182Před 4 lety
Confidence Interval for the mean using a dataset in Excel
Confidence Interval for the Mean with Sigma Known
zhlédnutí 215Před 4 lety
Confidence Interval for the Mean with Sigma Known
Thank you for a FANTASTIC video!
So if your mean is somehow equal or roughly equal to the mean, then it’s a normal distribution right?
why we didnt we follow the nrmal steps for NPP where i-0.5/n ? which brings to second question why did we add 1 although most videos chart NPP without adding 1 to the sample ? thank you so much . apologies if i am lost / confused
Thank you, this was super helpful!
EXECLLENT! Thank you
Thank you Sir
Thank you!
Thanks so much for this video, Joe. I hope you make new videos soon. God bless! :)
At what stage shoud we run a normality test ?
I run a normality test if I am about to run a hypothesis test that needs it as an assumption. Also, if we have normality, then probability rules are clearer.
can we get your notes around 18:59 time stamp when you reviewed?
My doubt is that do we have to check normality for every question in the questionnaire or it is overall data.
19:16 So they “have a really good chance to be normal”, but that doesn’t mean that we have proven that the distribution is normal, correct?
Correct.
Hi, Great video! I really feel I am learning about how to check for normality! Question: What should we look for with kurtosis for checking for normality? Thanks.
Thanks for the video. It is pretty sad excel does not have an Anderson-Darling test for normality built in. I’m a retired guy and miss Minitab.
Agreed. It would be nice for more advanced functionality but that is why we teach R Studio once we get past a first course in statistics.
ty dude
Hi Joe, My Mode: is # N/A however all my cells have values
A mode of #N/A means you have all unique values so hence no mode. The good thing is that for checking normality you want to focus on the mean roughly equal to the median.
thanks man! appreciate your efforts!
wonderful, many thanks it is important to know why we finding out the normality in a data distribution, and this video answers that
This was amazing! Thank you Joe
Thanks, AWESOME tutorial.
you saved me. thank you!
I am from Brazil, thanks for your class and congratulation for your skills.
All, my first example has an intercept of 992.99 (around 3:31 time point). I wrote the R^2 value instead. That was my mistake.
Hello Joe, Thanks for such useful videos in your channel. Please upload a video on constructing a QQ plot for weibull and gumbel distribution.
0:40 sweety-girls.online
0:26 sexy-milfs.online
Hello, You ended up using 63 for the mean rather than the 64, but the calculations still follow through with 63