Answer:
The Answer is 63.
Step-by-step explanation:
Have a great day :)
The answer is probably C.
Answer: 13/60 of the novel is left unread.
Step-by-step explanation:
The whole novel is assumed as 1.
He finished 1/4 of the whole novel in first day. 1/3 of the whole novel in the second day and 1/5 of the whole in the third day. This means that the total portion of the novel that he read in 3 days is
1/4 + 1/3 + 1/5 = (15 + 20 + 12 )/60 = 47/60
The part of the novel that is left unread after three days would be
1 - 47/60 = (60 - 47)/60 = 13/60
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
2a+7a+8b-12b-12-1 9a-4b-13