Question

2. A citizen claims that the intelligence of children in a particular community is above average. To test this
claim, he selects a simple random sample consisting of n = 9 children from this population. Scores of the
intelligence test typically vary according to a Normal distribution with mean ų = 100 and standard
deviation o = 15. The sample produces these scores {116, 128, 125, 119, 89, 99, 105, 116, 118). Does this
sample provide statistically significant evidence in support of the citizen's claim?​

Answer 1

Answer:

T tet should be insteed by two group of mammalian

Answer 2

Answer:

-4(5)=1=1-4(4-5)= _ 4(5)