Answer: -12.81% decrease
Step-by-step explanation:
1678-1463/1463 * 100 = -12.8128
T,A,Y are 40 and 2T,X,B,Z are 80
Answer:
300
Step-by-step explanation:
2*60 for 1 hr
120*2 to find two hrs
2*30 for 1/2 hr
add
Answer:
The p-value is 0.0229
Step-by-step explanation:
With
we have an upper-tail alternative. Because the p-value is defined as the probability of getting a value at least as extreme as the value observed. The observed value is given by the test statistic z = 1.997 which comes from a standard normal distribution. Therefore, we compute the p-value in the following way P(Z > 1.997) = 0.0229, i.e., the p-value is 0.0229
Answer:
Step-by-step explanation:
Y = kxz
Putting values of y x and z in the equation
4 = k(2)(3)
4 = k6
2/3 = k
Now finding y when x = - 6 and z = 2
Y = kxz
= 2/3(-6)(2)
= - 8