The flu shot changes every year in an effort to predict the strain that will be going around each year, and some years it is mor

Question

3 years ago

10

The flu shot changes every year in an effort to predict the strain that will be going around each year, and some years it is mor

e effective at preventing the flu than others. A group of researchers wants to compare the effectiveness of the flu shot this year to the flu shot last year.
Null:

Alternative:

Is this hypothesis directional or non-directional?

Type I Error:

Type II Error:

Health

2 answers:

madreJ [45] · Answer 1 · 2022-03-04T17:42:00+03:00

Answer:

if a group of researchers want to compare the effectiveness of the flu shot this year to the flu shot last year then is a directional hypothesis

Explanation:

A directional hypothesis this is simply the prediction made by a researcher concerning a positive or a negative change, relationship, or difference between the two variables that are being contained in a population.

A type I error: this is simply a situation whereby we a reject a true null hypothesis. while

A type II error is simply the non-rejection of a false null hypothesis.

Lana71 [14] · Answer 2 · 2022-03-04T15:56:03+03:00

Answer:

Null: This year flu shots effectiveness is no good than that of used last year and before...

Alternative: This year flu shots effectiveness is better as compared to those of used last year and before...

This hypothesis is directional due to the congruence wit all the facts in a chronological order and so...

Type I Error: Rejection of true null hypothesis

Type II Error: Non-Rejection of of a false null hypothesis