Answer:
7.52 m^3
Step-by-step explanation:
This is like compound interest in a banking calculation
Future volume = 5 (1 + .06)^7 = 7.52 m^3
Answer: 2 : 7
Step-by-step explanation:
Number of boys = 4
Number of girls = 10
Total number of students = total number of boys + total number of girls ,that is
Total number of students = 4 + 10
= 14
Therefore , the ratio in the simplest form that compares number of boys to total number of students is given by
number of boys : total number of students , that is
4 : 14
which will be
2 : 7 in the simplest form
<u>Answer</u>: No, we do not have sufficient evidence to conclude that the mean call duration, µ, is different from the 2010 mean of 9.4 minutes.
Step-by-step explanation:
As per given , we have
, since
is two-tailed so , the test is a two tail test.
Since population standard deviation is unknown, so we use t-test.
Critical value (two-tailed) for significance level of 0.01=
For n =50 ,
and s= 4.8
Test statistic : 

Since test statistic value (-1.18) lies in critical interval (-2.609228, 2.609228), it means the null hypothesis is failed to reject.
We do not have sufficient evidence to conclude that the mean call duration, µ, is different from the 2010 mean of 9.4 minutes.
Answer:
Step-by-step explanation:
11 is A ( i think)
12 i know is c but if wrong im so sorry
hope this helps
Answer:
pp
Step-by-step explanation: