Using error concepts, it is found that in this problem, a type I error would be finding an innocent person guilty, while a type II error would be finding a guilty person innocent.
<h3>What are Type I and Type II errors?</h3>
- Type I: Rejection of a true null hypothesis. The null hypothesis is true, but from a sample, you get enough evidence to reject.
- Type II: Non-rejection of a false null hypothesis. The null hypothesis is false, but from a sample, you do not get enough evidence to reject.
Hence:
In this problem, a type I error would be finding an innocent person guilty, while a type II error would be finding a guilty person innocent.
More can be learned about error concepts at brainly.com/question/25225353
Answer: Alvin = 42 yrs , Elga = 21 yrs
Step-by-step explanation:
Let Elga's age be x , and Alvin's age be y ,since Alvin is two times Elga's age , then
Alvin's age = 2x , that is
y = 2x ............... equation 1
The sum of their ages is 63 implies
x + y = 63 .............. equation 2
Solving the resulting linear equations by substitution method.
Substitute equation 1 into equation 2 , we have
x + 2x = 63
3x = 63
x = 63/3
x = 21
Therefore : Elga is 21 years old , then Alvin will be 21 x 2, which will be 42
Answer:
Cost in shop A is lesser.
Step-by-step explanation:
Given:
Shop A 4 batteries cost = £1.60
Shop B 6 batteries cost = £2.70
Find:
Lower price
Computation:
Cost in shop A = £1.60 / 4
Cost in shop A = £0.4
Cost in shop B = £2.70 / 6
Cost in shop B = £0.45
Cost in shop A is lesser.
Answer:
Volume = 4πr^3/3
= 4 x 3.14 x 4.7/2 x 4.7/2 x 4.7/2 x 1/3
= 39.5 (approx.)
Hope this helps!
Answer:
32 has exponent of 3
55 has exponent of 2
Step-by-step explanation:
