Answer:
46% of 127 is 58.42
Step-by-step explanation:
46/100 = x/127
Cross multiply
46 × 127 = 100 × x
5,842 = 100x
Divide both sides by 100
58.42 = x
The new mean age will be greater than 14.2 years because the teacher is older than the previous mean.
Answer:
Type I: 1.9%, Type II: 1.6%
Step-by-step explanation:
given null hypothesis
H0=the individual has not taken steroids.
type 1 error-falsely rejecting the null hypothesis
⇒ actually the null hypothesis is true⇒the individual has not taken steroids.
but we rejected it ⇒our prediction is the individual has taken steroids.
typr II error- not rejecting null hypothesis when it has to be rejected
⇒actually null hypothesis is false ⇒the individual has taken steroids.
but we didnt reject⇒the individual has not taken steroids.
let us denote
the individual has taken steroids by 1
the individual has not taken steroids.by 0
predicted
1 0
actual 1 98.4% 1.6%
0 1.9% 98.1%
so for type 1 error
actual-0
predicted-1
therefore from above table we can see that probability of Type I error is 1.9%=0.019
so for type II error
actual-1
predicted-0
therefore from above table we can see that probability of Type I error is 1.6%=0.016
Answer:
-8
4
-15
-8
7
42
-60
15
-9
-12
Step-by-step explanation:
-2 - 6 = -8
8 + (-4) = 4
10 + (-25) = -15
-15 - (-7) = -8
-6 - (-13) = 7
-7 x -6 = 42
-12 x 5 = -60
60/4 = 15
72/-8 = -9
48/-4 = -12
Answer:
$251
Step-by-step explanation:
To get this amount, we simply find o.4% of 250.
That equals 0.4/100 × 250 = 1.
This means she would have earned an interest amounting to $1 after the first month.
The total amount of money in her account after the first month = 250 + 1 = 251
Hence, she would have an amount of $251 in her account after the first month.
