Exercises 7.1 Part 2

Quiz
•
Mathematics
•
11th - 12th Grade
•
Hard
Standards-aligned
Kerryana Medlin
Used 16+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the U.S. Census Bureau, the 90% confidence interval for the median household income in 2013 was $51,484 to $52,394. Interpret the confidence interval.
We are fully confident that the interval from $51,484 to $52,394 captures the true median household income in 2013.
We know that the interval from $51,484 to $52,394 captures the true median household income in 2013.
We are 90% confident that the interval from $51,484 to $52,394 captures the true median household income in 2013.
We are 90% confident that the interval from $52,394 to $51,484 captures the true median household income in 2013.
Tags
CCSS.HSS.IC.B.4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tim purchased a random sample of clementines at a local grocery store. The 95% confidence interval for the mean weight of all clementines at this store is 76.6 grams to 90.1 grams. Interpret this confidence interval.
We are 95% confident that the interval from 76.6 grams to 90.1 grams captures the true mean weight of all clementines at this store.
We are 95% confident that the interval from 90.1 grams to 76.6 grams captures the true mean weight of all clementines at this store.
We are confident that the interval from 76.6 grams to 90.1 grams captures all the mean weights of all clementines at this store.
We are fully confident that the interval from 76.6 grams to 90.1 grams captures the true mean weight if all clementines at this store.
Tags
CCSS.HSS.IC.B.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the U.S. Census Bureau, the 90% confidence interval for the median household income in 2013 was $51,484 to $52,394. Calculate the point estimate of the confidence interval.
$51,484
$51,939
$52,394
$52,000
Tags
CCSS.HSS.IC.B.4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the U.S. Census Bureau, the 90% confidence interval for the median household income in 2013 was $51,484 to $52,394. Calculate the margin of error for the confidence interval.
$910
$555
$810
$455
Tags
CCSS.HSS.IC.B.4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tim purchased a random sample of clementines at a local grocery store. The 95% confidence interval for the mean weight of all clementines at this store is 76.6 grams to 90.1 grams. Calculate the point estimate of this confidence interval.
83.35 grams
76.6 grams
90.1 grams
85.35 grams
Tags
CCSS.HSS.IC.B.4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tim purchased a random sample of clementines at a local grocery store. The 95% confidence interval for the mean weight of all clementines at this store is 76.6 grams to 90.1 grams. Calculate the margin of error of this confidence interval.
13.5 grams
12.5 grams
6.75 grams
5.75 grams
Tags
CCSS.HSS.IC.B.4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the U.S. Census Bureau, the 90% confidence interval for the median household income in 2013 was $51,484 to $52,394.
Suppose that $51,759 was the median income for all households in 2012. Does the interval provide convincing evidence that the median household income increased in 2013?
Yes, since $51,759 is in the interval.
No, since $51,759 is in the interval.
Yes, since $51,759 is not in the interval.
No, since $51,759 is not in the interval.
Tags
CCSS.HSS.IC.B.4
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tim purchased a random sample of clementines at a local grocery store. The 95% confidence interval for the mean weight of all clementines at this store is 76.6 grams to 90.1 grams.
The nutritional label on a bag of clementines says a they typically weigh 74 grams each. Does the interval provide convincing evidence that the mean weight of clementines from this store is larger than the nutritional label suggests?
No, since 74 grams falls in the interval.
No, since 74 grams does not fall in the interval.
Yes, since 74 grams falls in the interval.
Yes, since 74 grams does not fall in the interval.
Tags
CCSS.HSS.IC.B.4
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