If its good, then share it with the world my man. express ur fealings. if that doesnt help, then make another song about ur hurt and pain
Answer:
false
Explanation:
<em>In research prediction, the critical region for a directional one-tailed test that uses a Z-score could tilt towards the right hand or the left hand.</em>
If the research shows that there was a stasistically significant change in the two factors compared (treatment would decrease scores), <em>the direction would tilt towards the left when a z-score statistics was used for the prediction.</em>
Answer and Explanation:
A resource that can be used to evaluate your statement about the effectiveness of toothpaste is the comparison between the effect it has on teeth, with the effect of an ordinary toothpaste. You could do this by bringing your family members together and separating them into two groups. One group would use regular toothpaste and the other group would use toothpaste which you believe actually whitens your teeth. The groups were to use the same toothpaste for a month and were to take pictures of the teeth each week. These photos would help you compare the whitening effect of toothpaste and thus prove that your toothpaste is efficient in whitening teeth, as it promises.
