A researcher compares the effectiveness of two different instructional methods for teaching physiology. A sample of 78 students using Method 1 produces a testing average of 89.5. A sample of 117 students using Method 2 produces a testing average of 55.9. Assume that the population standard deviation for Method 1 is 16.82, while the population standard deviation for Method 2 is 8. Determine the 99% confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2. Find the point estimate for the true difference between the population means.

the number of the people going.

step-by-step explanation:

the cost to buy one movie ticket is $7. if the total cost for the movie is a function of how many people go, then the input is : the number of the people going.

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.

c

step-by-step explanation:

there is vertical asymptote at x = 2 and x = 0

vertical asymptote occurs at the points where the denominator is 0. so we can say that

x = 2 occurs when there is a factor (x-2) in the denominator, and

x = 0 occurs when there is a factor "x" in the denominator

thus, the denominator of the equation would have "x * (x-2)", this is option c only. that's the correct answer.