The p-value will change if you get a new data set. Question 7 options: True Fals
ID: 3390845 • Letter: T
Question
The p-value will change if you get a new data set. Question 7 options: True False
If your 95% confidence interval for the average gas price in Columbus Ohio turned out to be ($2.25, $2.75), do you know what the sample mean was?
Question 4 options:
Yes
No
Suppose you found a 95% confidence interval for the mean using a random sample of size n, and you found it was too wide; that is, the margin of error was too large. If you wanted the margin of error to be ¼ of what it was before, what do you have to do to the sample size?
Question 5 options:
Increase it by 4 times what it was before
Decrease it by 1/4 of what it was before
Increase it by 16 times what it was before
None of the above
Your friend claims the average price of a burger in the Columbus Gateway Area is $10.00. You believe it’s lower than that. What symbol represents the $10 in this scenario?
Question 6 options:
X
0
x
Yes
No
Suppose you found a 95% confidence interval for the mean using a random sample of size n, and you found it was too wide; that is, the margin of error was too large. If you wanted the margin of error to be ¼ of what it was before, what do you have to do to the sample size?
Question 5 options:
Increase it by 4 times what it was before
Decrease it by 1/4 of what it was before
Increase it by 16 times what it was before
None of the above
Your friend claims the average price of a burger in the Columbus Gateway Area is $10.00. You believe it’s lower than that. What symbol represents the $10 in this scenario?
Question 6 options:
X
0
x
Explanation / Answer
The p-value will change if you get a new data set. Question 7 options: True False
If your 95% confidence interval for the average gas price in Columbus Ohio turned out to be ($2.25, $2.75), do you know what the sample mean was?
Yes
x - e = 2.25 ---------> x=2.25+e
x + e = 2.75
2.25+e + e = 2.75 ---------->0.25
x = 2.25+0.25 = 2.50
mean = 2.50
Increase it by 4 times what it was before
What symbol represents the $10 in this scenario?
0
Increase it by 4 times what it was before
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