His lap percentage will be 25% when he loses the sing price
Just add them all up and divide by how many numbers there are
6+12+22+16=56
56 divided by 4 = 14
14 is the mean
Answer:
Step-by-step explanation:
(a) Mrs. Bogard is herself a math teacher, so her asking her math class to indicate their favorite subject introduces a strong bias. Some students would try to please Mrs. Bogard by choosing math over history.
(b) If Mrs. Bogard wanted truly unbiased input, she'd have to take the class to another room in which neither math nor history is taught and ask a fellow teacher to do the sampling for her.
Answer: option A
Step-by-step explanation: We can only make a conclusion regarding this question by picking a level of significance.
Hence I will assume a 5% level of significance, that's α = 0.05.
If p > α, it simply means that we have a high chance of committing a type 1 error (because α is the probability of committing a type 1 error), hence we reject the null hypothesis meaning it is wrong.
If p < α, it means that we have a very low chance of committing a type 1 error hence we accept the null hypothesis because it is right.
Note even if we decide to try any reasonable value of α, we will come to the same conclusion made above.
