Answer:
To use a paired t-test
Step-by-step explanation:
t-tests are essentially tests carried out to compare two different groups to check if there is a major difference in their performances or results which may be related in certain characteristics.
A paired (correlated) t-test is used when there are matched pair of similar units or instances of repeated measurements.
In this case, Mary has to use a paired t-test because the samples (students) have high similarity in characteristics. The students in question has to be from the same class to test her hypothesis (similar characteristics).
To round the number value of 160, 656 to the nearest then
thousand, we first disband the value into its expanded form and identify the
place order of the numbers.
<span>1. 100, 000 =
hundred thousand</span>
<span>2.60, 000 =
ten thousand</span>
<span>3.600 =
hundreds</span>
<span>4.50 = tens</span>
<span>5.6 = ones</span>
Hence, the 60, 000 here is the value where the ten thousand
is, this is where we shall round off the number. Therefore the value becomes,
160,000. Take note of 0-4 rounding rules.
129 hundreths. Hope this helps.
Answer:
Function 2
Step-by-step explanation:
slope of Function 1 is 5/8
slope of Function 2 is 3/4, or 6/8
