Answer:
6 , -6 , -9 , 9
.................... .....
Using the t-distribution, as we have the standard deviation for the sample, we have that the test statistic is given by:
<h3>What are the hypothesis tested?</h3>
At the null hypothesis, it is tested if there is no difference, that is:
At the alternative hypothesis, it is tested if there is a difference, that is:
<h3>What is the test statistic?</h3>
The test statistic is given by:
The parameters are:
is the sample mean.
is the value tested at the null hypothesis.
- s is the standard deviation of the sample.
In this problem, 
is tested at the null hypothesis, and the sample is: 20, -40, -40, 0, 20, - 60, -40, hence:
.
Hence, the test statistic is:
More can be learned about the t-distribution at brainly.com/question/16313918
The number 100,000 (one hundred thousand) has five zeros. So 5 should be the exponent over 10.
In other words, 10^5 = 100,000
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A more formal way to find the exponent is to use logs. Specifically use log base 10. Many calculators use base 10 by default.
Type in "log(100000)" without quotes and the result will be 5
So log(100000) = 5 helping confirm that 10^5 = 100000.
Answer:
45%
Step-by-step explanation:
Counting the marbles, there are 5 green, 6 blue and 9 red.
Which means the odds of drawing a red to a non red are 11:9
In fraction form that would be 9 marbles out of 20 are red. 9/20
Since the fraction cannot be simplified, we can go to decimal form.
9/20=.45
.45=45%
The answer is 45%.
Answer: B, makes the most sence
Step-by-step explanation:
