Hypothesis Test for Proportion | Examples | P-value | Z table

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This video shows how to conduct one-tailed and 2-tailed significance tests for population proportion using P-values.
Confidence interval for p: • Confidence Interval fo...
00:00 - Intro
00:17 - Two-tailed and One-tailed Hypotheses
01:33 - Test Statistic
01:52 - Example
02:57 - P-value
04:15 - Right-tailed Test
05:07 - Left-tailed Test
z-test for μ template: • Hypothesis Z-test for ...
t-test μ template: • Hypothesis t-test Temp...
proportion (p) template: • Hypothesis Test for Pr...
Solved Proportion Test Problem: • Solved - Hypothesis - ...
Confidence Interval for Proportion: • Confidence Interval fo...

Опубликовано:

6 авг 2024

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Комментарии : 19

@vespereneidk Год назад

you really saved my exams

@Aristiq 2 месяца назад

You explain it better than any teacher, thanks!

@Mvd0x 10 месяцев назад

Thank you for this learning material, and I wish you the best 👍

@joshemman 10 месяцев назад

I wish you the best too, buddy.

@andrewk8817 Год назад

Hello sir, could you please do a video on EOQ and EPLS Models in Inventory. thank you

@velmurugan279 Год назад

Very good explanation

@joshemman Год назад

Thanks and welcome

@shamma6466 Год назад

thank you sooo muchhhh

@princesssheeragamotinan3125 3 месяца назад

how did you get the answer 2.32 was

@osama_statimath Год назад

👍

@abuda7em20 Год назад

Hi Sir , Thank you for your valuable video, but I have a question please. At 2:00 min there is number 5 shows as ( 162.5 >= 5 ) from where we got this 5 ?

@joshemman Год назад

It is a required condition for the test to be valid. The test requires np and n(1-p) to be >=5. I didn't focus on it in the video because some people use 10 (rather than 5), some use other values, and some don't mention it at all.

@abuda7em20 Год назад

@@joshemman so is it called as ( significant level ) or it has another name ? and thank you for your replay

@joshemman Год назад

@@abuda7em20No, it (the 5) is not the significance level. alpha is the significance level.

@lavishedgaming2140 Год назад

how did u sove the hypothesis test because im getting a different answer i got 5.80

@joshemman Год назад

The numerator is 0.72 - 0.65 = 0.07 Content of denominator square root: =0.65*0.35/250 = 0.00091 Taking the square root gives 0.0302. Z = 0.07/0.0302 = 2.32

@theshariqsartwork 7 месяцев назад

why did we minus it at 3:15. (1-0.9898)?

@joshemman 7 месяцев назад

The area in the table is the "less than area". Since out Z is positive, we need the area in the right tail which is 1 - "less than area". If Z were negative, we will use the "less than area" without subtracting from 1.