Hello sir I really liked your video it helped alot to me in learning these concepts. But still i have 1 doubt regarding the second example questions that is for paired t test the calculation not seems right can you please verify the second example that would help me alot if you do that
Very Nice explanation. I understood One sample t-test & Paired sample t-test. But want to know Independent sample t-test with example. Please suggest. Thank you.
Hi Reetika, First of all apologies for late reply. See we are talking about "Population distribution is Unimodal and Skewed " . Unimodal means it has a single peak or a single "bump" or hump in the shape of the distribution. and Skewed means its not symmetrical around its central point (mean, median, or mode).
Hello, I want to know that is T distribution a sampling distribution? If it is than why this curve getting flatter? For sampling distribution we know that if n increases the variance will decrease.
Yes, the T distribution is a sampling distribution. The T distribution becomes flatter as degrees of freedom increase. Despite increased sample size reducing variance, the T distribution's flattening reflects increased certainty about the population mean due to larger sample sizes, leading to values closer to the population mean.
What is meant by student t- distribution11aborate with an example: Confidence interval estimation from a sample of 11 observations. Conduct a sample test of mean given the data in part a. This type of question solved video?
To determine if a statistical test is one-tailed or two-tailed, examine your hypothesis. If it specifies a direction (greater or less than), it's one-tailed. If it's about a difference without specifying direction, it's two-tailed. Use the appropriate critical values from the table based on your hypothesis type.
When we look at the t-table, in column section, there are 2 options, one-tail and two-tails. My question is, how do we know that whether it is one or two tail test? Please comment..
It's depends upon the hypothesis you formulate. Suppose in this video at first numerical question sir took one tail because our alternative hypothesis said that our mu should be greater than 40 so it will come on only one tail. But if u consider on 2nd question mu is not equal to zero so we should consider this as mu less than zero or mu greater than zero so here we will use two tail test
Knowing whether to use a one-tail or two-tail test depends on your hypothesis. Imagine you flip a coin. - One-tail test: You predict it will land on heads. You only need to look at the "heads" side of the coin. - Two-tail test: You don't know which side it will land on. You need to look at both sides of the coin. I hope your query is now clear
If ho equal ho aur h1 not equal ho to two tailed and if ho is greater equal or less equal ho to h1 ,< aye ga aur h1> respectively Hoga to one tail test use hoga
Watch this video on Scales of Measurement in Statistics - Nominal, Ordinal, Interval, Ratio | Level of Measurement : th-cam.com/video/3BuJjrLDsNY/w-d-xo.html
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@janakipriya4292 : Q3 Answer C - Interval or ratio data
@@DigitalELearning What is the interval or ratio data?
Good
Thanks
Watch this video : th-cam.com/video/3BuJjrLDsNY/w-d-xo.html
Superb, well explained. Thanks a lot.❤❤
Problem solving very fantastic 🙏🙏
Thanks and welcome
Hello sir I really liked your video it helped alot to me in learning these concepts. But still i have 1 doubt regarding the second example questions that is for paired t test the calculation not seems right can you please verify the second example that would help me alot if you do that
Yes, he forgot to take square root in the numerator of s_d.
Yes, correct
Very Nice explanation. I understood One sample t-test & Paired sample t-test. But want to know Independent sample t-test with example. Please suggest. Thank you.
Will upload soon
Amazing.
Thank you! Cheers!
Thank you
You're welcome
When to use t distribution?
3rd point, can u please explain again. Rest all content is awesome
Hi Reetika, First of all apologies for late reply.
See we are talking about "Population distribution is Unimodal and Skewed " . Unimodal means it has a single peak or a single "bump" or hump in the shape of the distribution. and Skewed means its not symmetrical around its central point (mean, median, or mode).
Hello, I want to know that is T distribution a sampling distribution?
If it is than why this curve getting flatter? For sampling distribution we know that if n increases the variance will decrease.
Yes, the T distribution is a sampling distribution. The T distribution becomes flatter as degrees of freedom increase. Despite increased sample size reducing variance, the T distribution's flattening reflects increased certainty about the population mean due to larger sample sizes, leading to values closer to the population mean.
What is meant by student t- distribution11aborate with an example:
Confidence interval estimation from a sample of 11 observations.
Conduct a sample test of mean given the data in part a.
This type of question solved video?
Okay
Please explain key words also
Hello sir,Thank you for your great work .I have a doubt,sir how do you fix to see whether it's a one tailed or two tailed to see in the table
To determine if a statistical test is one-tailed or two-tailed, examine your hypothesis. If it specifies a direction (greater or less than), it's one-tailed. If it's about a difference without specifying direction, it's two-tailed. Use the appropriate critical values from the table based on your hypothesis type.
1.d
2.d
3.c
Thanks for replying. Here is the answer key
Q1 A)
Q2 D)
Q3 C)
When we look at the t-table, in column section, there are 2 options, one-tail and two-tails. My question is, how do we know that whether it is one or two tail test? Please comment..
It's depends upon the hypothesis you formulate. Suppose in this video at first numerical question sir took one tail because our alternative hypothesis said that our mu should be greater than 40 so it will come on only one tail. But if u consider on 2nd question mu is not equal to zero so we should consider this as mu less than zero or mu greater than zero so here we will use two tail test
Thank you Kaviyas for explaing it.
Knowing whether to use a one-tail or two-tail test depends on your hypothesis. Imagine you flip a coin.
- One-tail test: You predict it will land on heads. You only need to look at the "heads" side of the coin.
- Two-tail test: You don't know which side it will land on. You need to look at both sides of the coin.
I hope your query is now clear
If the hypothesis shows equality it is two tail
If the hypothesis shows signs greater and smaller than it is one tail
If ho equal ho aur h1 not equal ho to two tailed and if ho is greater equal or less equal ho to h1 ,< aye ga aur h1> respectively Hoga to one tail test use hoga
1a
2d
3a
Hello Reetika, Your Q1 and A2 are correct but not the Q3. Do you want to try again ?
C. Interval and ratio data
100 % correct Champ 😊
What is the difference between nominal, ordinal and interval data?
Watch this video on Scales of Measurement in Statistics - Nominal, Ordinal, Interval, Ratio | Level of Measurement : th-cam.com/video/3BuJjrLDsNY/w-d-xo.html
Which table can one use when u have negative calculated value
We use the same t table for both
2nd prob sd=5.04
Sir I hv answer of 0.43 t stat value and I couldn't understand why you used 4 as a value of sample size bcz it is 5 according to question
n is used for population and when we have sample we use n-1 to calculate standard deviation
Standard deviation toh video jesa same aa hi NH raha ...😢. Plz help
Watch this video on Standard deviation :th-cam.com/video/xVXHtREtCls/w-d-xo.html
When u r calculating t n=5 but y u substituted n=4
That is for degree of freedom
@@DigitalELearning no for calculated t value also you put n=4 but it shouldve been n=5
Same question my standard deviation value is also different from the video
2d
100 % correct Manisha Champ 😊
T stats is 0.44 not 0.04
Let me re verify this
Same answer I got 0.43 I hv sir pls clarify
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