Answer:
Slope is 100
y-intercept is 85
Step-by-step explanation:
The equation of a straight line can be modeled according to the function;
y = mx + c
where m is the slope and c is the y-intercept
comparing what we have ;
y = 100x + 85 with the standard form ;
Slope will be 100 and y-intercept is 85
Answer: b) one tailed test.
Step-by-step explanation:
To prove that the new method of teaching economics is better than the traditional one we have make reference to mean score of students (for example) in their past exams.
Let us assume that from past exams, the mean score of students in economics exams has a value of 40.
After trying the new method in teaching, the students did economics exam and have an average of 65, this is obviously and improvement that can only be validated by performing an hypothesis test on the sample mean score.
Because the teacher is trying to prove that her method is better than the traditional, she will have to perform a one tailed test to prove that the mean score of her teaching method (65) is greater than the mean score of the traditional (40).
Due to the fact that she is opting to prove a point in just a single direction ( that her methods brings larger score compared to the traditional) a one tailed test is the perfect option.
Answer:
https://www.slader.com/textbook/9781328900036-hmh-geometry/739/reflect/6/
Step-by-step explanation:
There is 3.28084 feet in a meter
To solve the problem we must know about the correlation coefficients.
<h3>What is the
correlation coefficient?</h3>
The correlation coefficient helps us to know how strong is the relation between two variables. Its value is always between +1 to -1, where, the numerical value shows how strong is the relation between them and, the '+' or '-' sign shows whether the relationship is positive or negative.
- 1 indicates a strong positive relationship.
- -1 indicates a strong negative relationship.
- A result of zero indicates no relationship at all, therefore, independent variable.
The correlation coefficient -0.9847 denotes, "There is a strong negative relationship between x and y".
Given to us
- The correlation coefficient for the data is −0. 9847.
As we can see that the value of the correlation coefficient is 0.9847, therefore, it is close to 1 means the relationship is strong, while the '-' symbol denotes that the relationship is negative.
Hence, the correlation coefficient -0.9847 denotes, "There is a strong negative relationship between x and y".
Learn more about Correlation Coefficients:
brainly.com/question/15353989
