Answer:
78
Step-by-step explanation:
i am using my sisters account hehe thats what u get for taking a shortcut boyyyyyyyyyy
<em>a</em> = 8 - a train arrives at the station once every 8 minutes, so for any given 8 minute interval, a randomly selected train has uniform probability of arriving at the station at some point in this time.
<em>f(x)</em> = 1/8 - the area under the graph of <em>f(x)</em> must be equal to 1. This area corresponds to a rectangle with length <em>a</em> = 8 and height <em>x</em> such that 8<em>x</em> = 1. Solving for <em>x</em> gives 1/8.
<em>P</em> = 5/8 - this is equal to the area under the graph over the interval [0, 5], which is the area of a rectangle with length 5 and height 1/8.
Is it 0.092?
I got this by using the information from pH 4 which is 15 and doubling it to make 30 and taking away 5 (we get 5 from halving the the rate for reaction at pH6) to get 25.
0.071 x 2= 0.142
0.100/2 =0.05
0.142+0.05 =0.092
Answer:
We conclude that population mean is equal to 100 at the α=0.01 level of significance.
Step-by-step explanation:
Given information:
Sample size, n=40
Sample mean=104.3
sample standard deviation, s=18.2
We need to check whether the population mean greater than 100 at the α=0.01 level of significance.
Null hypothesis:
Alternative hypothesis:
Let as assume that the data follow the normal distribution. It is a right tailed test.
The formula for z score is
Using the standard normal table the p-value at z=1.49 and 0.01 level of significance is 0.068112.
(0.068112 > 0.01) p-value is greater than α, so we accept the null hypothesis.
Therefore, we conclude that population mean is equal to 100 at the α=0.01 level of significance.
Answer:
Step-by-step explanation: