Null Hypothesis and P-Value - Science Assignment Help

Assignment Task

Q1. A quiz consists of 6 True/False questions. Assume that the questions are independent. Also, True and False are equally likely outcomes when guessing the answer to any question.

What is the probability that a student guesses each question correctly. Round your answer to 3 decimal places.
0.015
0.064
0.023
0.115

Q2. “If there is sufficient evidence to reject a null hypothesis at 10% significance level, then there is sufficient evidence to reject it at 5% significance level.”
Select the best answer regarding this statement:
Always True
Never True
Sometimes true; The p-value for the statistical test needs to be provided to determine the answer
Not enough information; The answer is dependent on the type of statistical test used

Q3. Which of the following measures of central tendency would be equivalent in a perfectly normal distribution?
Mean
Median
Mode
Interquartile range
All of the above
None of the above
I and II only
I, II and III

Q4. The bar graph describes the employment status of a random sample of adults living in Kanpur.
What percentage of adults do not have jobs?
9.6%
10.1%
5.4%
12.5%

Q5. When the level of significance of a hypothesis test is increased, the probability of committing a Type I error:
Increases
Remains the same
Decreases
Becomes zero


Q6. A Type II error is an error that
Rejects H0, given that H1 is false
Fails to reject H0, given that H1 is true
Fails to reject H0, given that H1 is false
Rejects H0, given that H1 is true

 

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