1) 1) Which states that there is a significant difference between a parameter and a specific value? a) Null hypothesis b) Alternative hypothesis c) Hypothesis testing d) Errors in hypothesis testing 2) 2) Which refers to the probability of committing the error of rejecting a true null hypothesis? a) Errors in hypothesis testing b) Hypothesis testing c) Level of significance d) Rejection region 3) 3) What refers to the set of all values of the test statistic for which the null hypothesis has to be rejected? a) Critical value b) Rejection region c) Level of significance d) Non-rejection region 4) 4) What type of error is committed when a true hypothesis is rejected? a) Type I b) Type II c) Type X d) Type Z 5) Which symbol is commonly used for null hypothesis? a) < b) > c) = d) ≠ 6) The researcher wants to determine the relationship of students’ level of depression to their academic performance. Which represents the independent variable? a) Level of depression b) Academic performance c) Both A and B d) Insufficient data 7) A sample of 150 batteries were taken to verify the claim of its manufacturer that the average lifespan of their batteries is 8.5 months. Which distribution must be considered to identify the appropriate rejection region? a) t-distribution b) z-distribution c) f-distribution d) x-distribution 8) A random sample of Grade 11 students were selected from a population whose standard deviation is unknown. Which must be considered in identifying the appropriate rejection region? a) f-distribution b) t-distribution c) z-distribution d) insufficient data 9) A teacher from a certain school reported that 6% of the students took the remediation program last year. To test this claim, a researcher surveyed 65 teachers and found out that 5 students took the remediation program. Which statement is NOT true? a) The sample size is 65. b) The population proportion is 6%. c) The value of sample proportion is 0.80. d) The sample size of the proportion is 5. 10) Which illustrates bivariate data? a) A watchman of a school estimates, on average, the number of students entering the school late is 12. b) An adviser finds out that on the average, only 20% in her advisory class has internet access in their homes. c) Sandra, an ABM student was tasked to conduct a survey on the number of hours students spend in playing online games. d) A student researcher concluded that the number of hours spent browsing internet is related to their academic performance.

4Q Statistics and Probability (PART 1)

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