Answer:
11 to the second power is 121
Step-by-step explanation:
Answer:
The P-value is 0.0234.
Step-by-step explanation:
We are given that a statistics practitioner calculated the mean and the standard deviation from a sample of 400. They are x = 98 and s = 20.
Let = population mean.
So, Null Hypothesis, : = 100 {means that the population mean is equal to 100}
Alternate Hypothesis, : > 100 {means that the population mean is more than 100}
The test statistics that will be used here is One-sample t-test statistics because we're yet to know about the population standard deviation;
T.S. = ~
where, = sample mean = 98
s = sample standard deviation = 20
n = sample size = 400
So, the test statistics = ~
= -2
The value of t-test statistics is -2.
Now, the P-value of the test statistics is given by;
P( < -2) = 0.0234 {using the t-table}
Answer:
x can be cancelled
Step-by-step explanation:
we are given
Firstly, we will factor numerator and denominator
and then we can factor it
now, we can factor denominator
now, we can replace it
we can see that
both terms are having x common
so, x can be cancelled
So,
x can be cancelled
Answer:-2.3
Step-by-step explanation:
Answer:
x=8 and y=2
Step-by-step explanation:
