Answer:
6%
Step-by-step explanation:
Let T= truck
C= Car
We are looking for the probability that someone owns a truck given that they own a car
or
P(T|C)
The conditional probability formula is as follows:
P(T|C)=(T∩C)/C
plugging in numbers..
.04/.63=6.3492% which rounds to 6%
Answer:
25.04
Step-by-step explanation:
26.12-1.08
=25.04
Answer:
Since the calculated value of z= -1.496 does not fall in the critical region z < -1.645 we conclude that the new program is effective. We fail to reject the null hypothesis .
Step-by-step explanation:
The sample proportion is p2= 7/27= 0.259
and q2= 0.74
The sample size = n= 27
The population proportion = p1= 0.4
q1= 0.6
We formulate the null and alternate hypotheses that the new program is effective
H0: p2> p1 vs Ha: p2 ≤ p1
The test statistic is
z= p2- p1/√ p1q1/n
z= 0.259-0.4/ √0.4*0.6/27
z= -0.141/0.09428
z= -1.496
The significance level ∝ is 0.05
The critical region for one tailed test is z ≤ ± 1.645
Since the calculated value of z= -1.496 does not fall in the critical region z < -1.645 we conclude that the new program is effective. We fail to reject the null hypothesis .
Answer:
The slope is -6 and the y intercept is 0
