Answer:
H 0 : p ≤ 0.4 H a : p > 0.4
And based on the alternative hypothesis we can conclude that we have a right tailed test
Step-by-step explanation:
Data given
n=300 represent the random sample size
estimated proportion of people with cats
is the value that we want to test
represent the significance level
z would represent the statistic
represent the p value
Null and alternative hypothesis
We want to test if the true proportion of people with cats is higher than 0.4, so then the best alternative is:
Null hypothesis:
Alternative hypothesis:
H 0 : p ≤ 0.4 H a : p > 0.4
And based on the alternative hypothesis we can conclude that we have a right tailed test
The statistic is given by:
(1)
Replacing we got:
Answer:
A Irrational number
Step-by-step explanation:
Explanation
Pi is strictly a irrational number , as it is not in the form of . i.e not a fraction
Pi is consider from the ration of circumference of circle to its diameter .
and its value is Pi = 3.14159 ,but this value is not repeating
But in case of its value is 3.142857142857... i.e is this value is reapating its self ,
And is a rational number, as it is in the form of
and if we subtract from a irrartional number then the resultant is also irrational
Hence we can say that PI - is a irrational number. Answer
Answer:
22
Step-by-step explanation:
Answer:
150
Step-by-step explanation:
S.A.=2(wl+hl+hw)=
2((3x9)+(4x3)+(4x9))
2(27+12+36)
2(75)
150
Answer:
P(x < 3) = 0.1971
Explanation:
To calculate the probability that x babies weigh more than 20 pounds, we will use the binomial distribution, so it can be calculated as:
So, replacing n = 16 and p = 0.25, we get that the probability is equal to
P(x) = 16Cx (0.25)^x (1 - 0.25)^(16 - x)
Now, the probability that fewer than three weights more than 20 pounds are equal to
Then
P(x < 3) = 0.01 + 0.0535 + 0.1336
P(x < 3) = 0.1971
Therefore, the answer is
P(x < 3) = 0.1971