Lesson S5.1.1
S5.1.1 Language of statistical hypothesis testing Quiz: Pearson Edexcel Maths, Unit 15
20 questions
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Lesson S5.1.1, Language of statistical hypothesis testing: 20 multiple choice questions for the Pearson Edexcel Maths (9MA0), Unit 15: Statistical hypothesis testing, written with Revision Ninja.
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The 20 questions
-
What term describes a statement about a population parameter tested using sample data?
- Statistic
- Parameter
- Hypothesis
- Estimator
-
Which symbol represents the hypothesis assumed to be correct until rejected?
- HA
- H1
- Hp
- H0
-
What is the name for the hypothesis accepted if the null hypothesis is rejected?
- Null hypothesis
- Sample hypothesis
- Experimental hypothesis
- Alternative hypothesis
-
Which symbol is conventionally used to denote the alternative hypothesis?
- H2
- H1
- Hx
- H0
-
What type of alternative hypothesis is tested using a two-tailed test?
- Non-directional
- Directional
- One-tailed
- Biased
-
What type of alternative hypothesis specifies an increase or decrease?
- Two-tailed
- Non-directional
- Directional
- Neutral
-
What is the set of all possible values of the test statistic that lead to rejecting H0 called?
- Significance level
- Critical region
- Acceptance region
- Sample space
-
What boundary value separates the critical region from the acceptance region?
- Test statistic
- P-value
- Critical value
- Significance threshold
-
State the null hypothesis if testing if a coin is biased towards heads with probability p.
- p < 0.5
- p > 0.5
- p = 0.5
- p ≠ 0.5
-
State the alternative hypothesis for testing if a die rolls fewer sixes than expected.
- p = 1/6
- p ≠ 1/6
- p > 1/6
- p < 1/6
-
If a test has a significance level of 5%, what is the probability of a Type I error?
- 0.025
- 0.05
- 0.95
- 0.10
-
What name is given to the result calculated from sample data to test the hypothesis?
- Critical value
- Significance level
- Sample parameter
- Test statistic
-
Which test requires calculating probabilities using a binomial distribution?
- Normal test
- Student t-test
- Binomial test
- Chi-squared test
-
When is a two-tailed test used instead of a one-tailed test?
- Change either way
- Decrease only
- Exact value expected
- Increase only
-
If significance level is 10% for a two-tailed test, what area is in each tail?
- 10%
- 5%
- 20%
- 2.5%
-
What is the term for incorrectly rejecting a true null hypothesis?
- Bias error
- Type I error
- Sampling error
- Type II error
-
What is the term for incorrectly accepting a false null hypothesis?
- Standard error
- Random error
- Type I error
- Type II error
-
Why might a researcher choose a one-tailed test over a two-tailed test?
- Easier maths
- Higher accuracy
- Prior knowledge
- Larger sample
-
What term describes the actual probability of rejecting a true null hypothesis?
- Power
- P-value
- Significance level
- Critical value
-
What type of alternative hypothesis is used when testing for any change in a parameter?
- Null
- One-tailed
- Directional
- Two-tailed
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