2nd Year Computer Chapter 7 TestHYPOTHESIS TESTING

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. What is the basic formula used to calculate the Chi-Square (x²) test statistic?

   1. 

   2. 

   3. 

   4. 

2. If a new medical drug test yields a p-value of 0.01 against a significance level of 0.05, it implies that:

   1. The drug is completely ineffective

   2. The improvement is unlikely to be due to chance alone

   3. The null hypothesis must be retained

   4. The test statistic was calculated incorrectly

3. What can occur if test results are misinterpreted?

   1. Incorrect conclusions

   2. Higher prediction accuracy

   3. Automatic rejection of the null hypothesis

   4. Faster data processing speed

4. The critical region is the:

   1. Safe area

   2. Rejection area

   3. Data range

   4. Sample space

5. An example of a test statistic is:

   1. Mean

   2. t-value

   3. Mode

   4. Median

6. According to the general flowchart of hypothesis testing, what decision is made if the p-value is less than ?

   1. Accept Hypothesis

   2. Reject Hypothesis

   3. Retain Null Hypothesis

   4. Ignore Test Results

7. A p-value is used for:

   1. Measuring accuracy

   2. Testing a hypothesis

   3. Measuring variance

   4. Data storage

8. Which values are analyzed during the interpretation of test results?

   1. CPU temperature, RAM size, and bandwidth

   2. Pixel density, resolution, and aspect ratio

   3. Table names, primary keys, and foreign keys

   4. p-values, confidence levels, or test statistics

9. What was the sample mean () calculated from the 10 student marks (72, 75, 78, 74, 77, 80, 76, 79, 81, 78)?

   1. 70

   2. 75

   3. 77

   4. 80

10. What effect do vague statements have on hypotheses?

    1. Improve study direction

    2. Reduce accuracy

    3. Increase model precision

    4. Avoid false assumptions