Answer:
Correct option: (c) Paired samples t confidence interval.
Step-by-step explanation:
A paired data is collected from an experiment that is conducted twice; once before applying a treatment and second time after the treatment has been applied.
For example, scores of students before the coaching classes and after the coaching classes.
In this case a paired data is collected.
The runners were asked to run 100-yard wearing their usual shoes one day and do same thing the next day wearing the company's shoes.
The two data collected from both the days is a paired data.
To determine whether the salesman's claim that the runners would run faster races if they wore the company's brand of running shoe is correct or not a confidence interval can be constructed for the paired the data.
If the true mean difference is contained in the interval then the salesman's claim can be considered true otherwise false.
To construct this confidence interval use a paired sample t confidence interval.
Because the population standard deviations are not known.
The (1 - <em>α</em>)% confidence interval for the paired difference is:
Answer:
Step-by-step explanation:
You are going to need to know two properties of exponents.
Also know that a*b = b*a, so youc an change the order of multiplication.
Since everything is being multiplied in the numerator, and there is only multiplication, it's actually super easy to start. Just multiply everything.
so now you have
Again, since the numerator and denominator only have multiplication you can divide part by part. so the number divides the number, the x term divides the term and the y term divides the y term
-16/-4 = 4
x^14 / x^-7 = x^21
y^-1 / y^6 = y^-7
So all together that makes
The final step in simplifying is making all negative powers into fractions. Sometimes non whole numbers can be made into roots. Definitely make negative powers fractions though
In order for a triangle to exist, the two smaller sides must add to a number greater than the largest side.
So, 13+10 = 23
So, the number has to be smaller than 23, and the largest whole number less than 23 is 22.
22 Is the largest possible whole number.
Answer:
B
Step-by-step explanation:
Hope this helps. Have a great rest of your day. :)