Learn how to perform a z statistical test @EugeneOLoughlin. The R script (84_How_To_Code.R) for this video is available to download from Github at: github.com/eol...
Can you please tell, that how to find the Z-Test of 2 samples, where we have xbar1, xbar2, n1(Sample Size), n2, s1 (Standard Deviation), s2 and we have to use the inbuilt function of Z-Test..... Please clear this doubt
Thank you so much for this helpfull video. But there is still something unclear. Why didn't you write this code t.test(Weight, mu =1000, alternative ="less") on R? With the same data base the computer answer : t= -2.509, df = 13, p-value =0.01307 95 percent confidence interval: -Inf 998.8864
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z test doesn't follows t-distribution. It should be pnorm() for z distribution
correct
Yes!
Eugene you golden god, thank you for these videos.
:-)
Can you please tell, that how to find the Z-Test of 2 samples, where we have xbar1, xbar2, n1(Sample Size), n2, s1 (Standard Deviation), s2 and we have to use the inbuilt function of Z-Test.....
Please clear this doubt
Thank you. Shouldn't the null hypothesis always include equality?
Amazing Content
Thank you so much for this helpfull video. But there is still something unclear.
Why didn't you write this code t.test(Weight, mu =1000, alternative ="less") on R?
With the same data base the computer answer : t= -2.509, df = 13, p-value =0.01307
95 percent confidence interval: -Inf 998.8864