Answer:
2 x 3 + 6 - 8
Step-by-step explanation:
2 x 3 = 6
6 + 6 = 12
12 - 8 = 4
:)
Answer:
Well according to the number line shown, it is in the negative area and if you see this it is near -6.5, all you need to do is count the spots until it hits the circle which is -6.8
Step-by-step explanation:
Answer:
The answer is D. 38360
Step-by-step explanation:
<h2>
Answer with explanation:</h2>
Let
be the population mean.
By considering the given information , we have
Null hypothesis : 
Alternative hypothesis : 
Since alternative hypothesis is right-tailed , so the test is a right-tailed test.
Given : Sample size : n=16 , which is a small sample , so we use t-test.
Sample mean:
;
Standard deviation: 
Test statistic for population mean:

i.e. 
Using the standard normal distribution table of t , we have
Critical value for
: 
Since , the absolute value of t (2.333) is smaller than the critical value of t (2.602) , it means we do not have sufficient evidence to reject the null hypothesis.
Hence, we conclude that we do not have enough evidence to support the claim that answering questions while studying produce significantly higher exam scores.