
AP Statistics: Inference Multiple Choice Challenge

Interactive Video
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English
•
6th - 8th Grade
•
Hard
Standards-aligned

Amelia Wright
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Standards-aligned
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of using confidence intervals in statistical inference?
To calculate the sample mean from a given dataset
To estimate the range within which a population parameter lies with a certain level of confidence
To determine the exact value of a population parameter
To predict future trends based on past data
Tags
CCSS.HSS.IC.B.4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which formula is used to calculate the margin of error in a confidence interval for proportions?
Sum of sample proportions divided by the number of samples
Sample mean divided by the population mean
Z* multiplied by the standard error of the statistic
Difference between the upper and lower bounds of the interval
Tags
CCSS.HSS.IC.B.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In hypothesis testing, if the null hypothesis is assumed true, what does the test statistic Z represent?
The ratio of the sample variance to the population variance
The probability of observing the sample data under the null hypothesis
The difference between the sample mean and the population mean
The standardized difference between the observed sample statistic and the null parameter
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to ensure the sample size is less than 10% of the population in sampling scenarios?
To increase the variability of the sample
To ensure the independence of observations and the negligible impact of sampling without replacement
To comply with ethical standards of data collection
To minimize the cost of data collection
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a 95% confidence interval indicate about the interval constructed from the sample data?
The interval includes the true population parameter in 95% of all possible samples
All sample observations fall within this interval
95% of the population data falls within this interval
The sample mean is exactly in the middle of the interval
Tags
CCSS.HSS.IC.B.4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of test is used when the data sets are not paired and the hypothesis is that one mean is greater than the other?
Chi-square test
Z-test
Two-sample T-test
Paired T-test
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a study comparing two fertilizers, if the null hypothesis states no difference in mean yields, what would a significant P-value indicate?
Both fertilizers are ineffective
Acceptance of the null hypothesis
Need for more data
Rejection of the null hypothesis
Tags
CCSS.7.SP.A.2
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