A certain country claims that only 23% of its children are malnourished. An anthropologist who just visited the area felt that this claim was way too low. In order to perform a hypothesis test at a 0.01 significance level, he observed 120 children and found 33 to be malnourished

Option (b) 10 to 20

Step-by-step explanation:

Let the number obtained between the interval be 'x'

Therefore,

according to the question:

multiplying the number with 4 and then adding 8 to it to get 60

thus,

mathematically, we get

4x + 8 = 60

or

4x = 60 - 8

or

4x = 52

or

x = 13

Hence,

The 13 lies between the interval 10 to 20

Option (b) 10 to 20