What are you looking for? looking for x a or b?
10 and -4. You multiply 10 times -4 to get -40 and you add 10 and -4 to get 6
Answer:
35 min. and 11 sec.
Step-by-step explanation:
27 min + 7 min = 34 min
46 sec + 25 sec = 71
60 seconds in a 1 minutes so:
71 - 60 = 11
add 1 minute to 34 =34
Answer:
2...................
Step-by-step explanation:
Answer:
a) P value = 0.0013
b) No, it is not plausible that the silicon content of the water is no greater than it was 10 years ago
Step-by-step explanation:
The null hypothesis here is “Mean is equal to 5” while alternate hypothesis is that “Mean is greater than 5”
Given
Mean = 5, x’ = 5.4 and sigma = 1.2 and n = 85
Z = x-u’/sigma/sqrt n
Substituting the given values, we get –
Z = 3.02
A) P value = 0.0013 which is less than 0.05 and thus we will reject the null hypothesis
B) There is enough evidence to reject the null hypothesis
