T-Tests in R Studio: One Sample Mean with raw data | One-Tailed & Two-Tailed

How to perform t.test for one-sample mean in R!
We'll use the built-in "cars" dataset to explore:
• Hypothesis testing: Learn how to test if the average speed in the dataset differs from a specific value.
• Confidence intervals: Discover how to interpret confidence intervals and draw conclusions about the true mean.
• Two-tailed vs. one-tailed tests: Understand the difference and when to use each approach.
• Significance levels: Learn how p-values help you decide whether to reject the null hypothesis.
Selecting items from vectors in R: • Select items from Vect...

[@rajtigris]

Immensely useful videos. Thanks and God bless

[@diodio520]

Indeed, very nicely explained.

[@joshemman]

Glad it was helpful!

[@NMTL-Northern-Movers]

How to do t-Test-Paired Two-Sample for Means on Excel.... I have done from Data analysis but how to interpret like for Z test you have mentioned that how to calculate upper limit lower limit margin of difference and standard error ...how to do it for t-test?

[@joshemman]

You can find the differences in the paired samples, then calculate the mean and standard deviation of the differences, then use this one-sample template: ua-cam.com/video/ymusVe-F4T8/v-deo.html

[@gurzbasak]

I watched your videos before my final exam, and today i found out that i received an AA grade. Your videos have been truly valuable. Thank you so much, professor 🙏

[@joshemman]

Glad you did well. Thanks for dropping a note.

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[@joshemman]

I'm not really sure. You can do a Google search. There are many free resources online on those subjects.