Statistical Inference

Quiz
•
Mathematics
•
11th - 12th Grade
•
Medium
+10
Standards-aligned
Brian McCleskey
Used 134+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Zoie completes a report by asking 70 students across campus. She found that 48% of CIAA students do not wash their hands after using the bathroom. What is the population of her survey?
the bathroom
CIAA students
48% of students
Tags
CCSS.7.SP.A.1
CCSS.7.SP.A.2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Zoie completes a report by asking 70 students across campus. She found that 48% of CIAA students do not wash their hands after using the bathroom. What is the sample size?
48
100
70
CIAA students
Tags
CCSS.HSS.IC.A.1
CCSS.HSS.IC.B.4
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Tags
CCSS.7.RP.A.2
CCSS.7.RP.A.3
CCSS.7.SP.A.1
CCSS.7.SP.A.2
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
There are 400 students at Polly's school. She surveyed a random sample of 80 students to find their favorite hobby. 19 said they like to read. 30 said they like to be with friends. 8 said they like to do crafts. 23 said they like to play sports. Polly infers that doing crafts is the least popular hobby at her school.
Refer to the data table. Polly surveys two more samples. Do the results from these samples support the inference made from the first sample?
Yes, the survey results support the inference that doing crafts is the least popular hobby at Polly's school.
No, the survey results does not support the inference that doing crafts is the least popular hobby at Polly's school.
Tags
CCSS.7.SP.A.1
CCSS.7.SP.A.2
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
There are 400 students at Polly's school. She surveyed a random sample of 80 students to find their favorite hobby. 19 said they like to read. 30 said they like to be with friends. 8 said they like to do crafts. 23 said they like to play sports. Polly infers that doing crafts is the least popular hobby at her school.
Yovani estimates that about 200 students in the school favor playing sports as a hobby. Do you agree?
Yes, I used a proportion to find the number of students in the school who likely to prefer to play sports. 23/80 = 200/400; 200 students
No, I used a proportion to find the number of students in the school who likely to prefer to play sports. 23/80 = 115/400; 115 students
Tags
CCSS.7.RP.A.2
CCSS.7.RP.A.3
CCSS.7.SP.A.1
CCSS.7.SP.A.2
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The dot plots show how long it took students in Mr. Chauncey's two science classes to finish their science homework last night. Find the means to make an inference about the data.
The 1st period mean is 35. The 2nd period mean is 38.75. On average, it took students in the 1st period class slightly longer to finish their homework than it did the students in the 2nd period class.
The 1st period mean is 38.75. The 2nd period mean is 35. On average, it took students in the 1st period class slightly longer to finish their homework than it did the students in the 2nd period class.
The 1st period mean is 35. The 2nd period mean is 38.75. On average, it took students in the 2nd period class slightly longer to finish their homework than it did the students in the 1st period class.
The 1st period mean is 38.75. The 2nd period mean is 35. On average, it took students in the 2nd period class slightly longer to finish their homework than it did the students in the 1st period class.
Tags
CCSS.7.SP.A.1
CCSS.7.SP.A.2
CCSS.7.SP.B.4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Litzy collects data from a random sample of 7th graders. Out of 40 respondents, 7 attend afterschool programs. Of the 200 7th graders attending Litzy's school, how many would be expected to attend afterschool programs?
14 7th graders
28 7th graders
35 7th graders
42 7th graders
Tags
CCSS.7.RP.A.3
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