What is the equation of this graphed line

y=-9/8x+7

Step-by-step explanation:

When finding slope from the graph, the coordinate that has a zero where x is supposed to be is the y-intercept. To put it into slope-intercept form it is important to remember y=mx+b. B is the y-intercept so you'll take the y value and put it where b is. So in this case you'll have y=mx+7. To find the slope you have to find the distance between the two coordinates. So you'll see how many times you go up from -2 to 7, 9 times. Then you calculate how many times you go over from 8 to 0, 8 times. The 8 and the 9 are the two values of slope. When forming the slope you put the rise over the run. Or in other words, you put how many times you go up/down over how many times you go left/right. To determine if the slope is negative or positive you look at the line and if the values are getting smaller or the line is going from left to right, then it is negative. If the values are getting bigger or the line is going from right to left, then it is positive. In this case the values are getting smaller and the line is going from left to right which means this slope is negative. So you add a negative to 9/8 and replace m with what you just got (the slope). Your answer should look like this, y=-9/8x+7.

D. The small p value and the small effect size suggest that the observed difference between the drug placebo groups are likely to be due to sampling error. This study should be replicated with a larger sample size.

Step-by-step explanation:

The p value is determined for any test before making a conclusion. If the p-value is smaller than critical value then we reject the null hypothesis which means that drug is not effective for the reducing depression. A very small p-value usually lesser than 0.05 indicates strong evidence against the null hypothesis.