The average value for t- statistics is 0 if null hypothesis is true.
What is a t – statistics and null hypothesis ?
- The t-statistic, which is used in statistics, measures how far a parameter's estimated value deviates from its hypothesized value relative to its standard error.
- Through the Student's t-test, it is utilized in hypothesis testing. In a t-test, the t-statistic is used to decide whether to accept or reject the null hypothesis.
- It is quite comparable to the z-score, but when the data is small or the standard deviation is unknown, the t-statistic is employed instead.
- The default assumption, or null hypothesis, is that the quantity being measured is zero (null). The quantity to be assessed is often the difference between two circumstances.
- Trying to determine, for instance, whether there is conclusive evidence that an impact has happened or that samples come from several batches
The t-test yields a t-value of 0 if the sample data precisely match the null hypothesis. The value of the t-value rises as the sample data diverge more and more from the null hypothesis.
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Answer:
d. 60
Explanation:
If a body of mass 2 kg is moving with a velocity of 30 m/s, then
on doubling its velocity the momentum becomes
a 30 kgm/s
b 90 kgm/s
C 120 kgm/s
d 60 kgm/s
HALPLPLPPLL
Answer:
the answer is Energy conversion
Explanation:
I hope this helped
R=U/I so
U=RxI
U= 10 x 42
U= 420 volts
here we can say that there is no external force on fisherman and dock
so here we will use momentum conservation theory
As per momentum conservation
initial momentum of fisherman + boat = final momentum of fisherman + boat
now we will have
so the speed of boat and fisherman will be 1.16 m/s
