Answer:
The 98% confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2 is (-8.04, 0.84).
Step-by-step explanation:
The (1 - <em>α</em>)% confidence interval for the difference between population means is:

The information provided is as follows:

The critical value of <em>z</em> for 98% confidence level is,

Compute the 98% confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2 as follows:


Thus, the 98% confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2 is (-8.04, 0.84).
Let the number be x
Then the absolute value of the number from -2 should be 4


So either


Or




[tex] <B>The numbers are 2 and -6</B> [/tex[
They are four units away from -2 on the number line
Answer: B = The range is greater than the mean.
Step-by-step explanation:
Answer:
Oh dear, Prodigy?
Step-by-step explanation:
*basically ea math game*
uh let's see...
1.3333333333333 mg
Answer:
20 so the fractions would be 3/4=15/20 and 9/10=18/20
Step-by-step explanation:
because 4 x 5 = 20 and 10 x 2 = 20