MULTIPLE CHOICE: Read and analyze each statement carefully. Write your answer in your activitysheetotebook.

1. In hypothesis testing, this denotes that there is no difference between two parameters. a. Alternative hypothesis c. Population mean b. Population proportion d. Null hypothesis

2. The rejection region refers to the region where the value of the test statistic lies for which we will reject the null hypothesis. This region is also called a. Hypothesis testing region c. Z - score region b. Critical region d. Probability region

3. This refers to an intelligent guess about a population proportion. a. Hypothesis c. Decision b. Test statistic d. Interpretation

4. What mathematical model is appropriate for decision making? a. Graphical representation c. test-statistic b. Normal curve d. None of these

5. For a z-test of proportions, which of the following is the rejection region for a two tailed test? a. z > za or z > -za c. z -za b. z > -za/2 or z > za/2 d. z za/2 6. For a z-test of proportions, which of the following is the rejection region for a one tailed test? a. z > za or z za or z > -za b. z -za d. z > -za/2 or z > za/2

7. For the 95% confidence level, what is the value for ? a. = .01 c. = .10 b. = .05 d. = .025

8. When the null hypothesis is rejected, which of the following is true? a. There is sufficient evidence to back up the decision. b. There is no sufficient evidence to back up the decision. c. The conclusion is guaranteed. d. The conclusion is not guaranteed.

9. When the alternative hypothesis utilizes the symbol, the test is said to be a. Directional c. critical b. Non-directional d. not equal

10. When the alternative hypothesis utilizes the > or the

Multiple Choice. Answer the following statements by writing the letter of the correct answer on your activity notebook. 1. The standardized test statistic for large sample hypothesis test concerning a singlepopulation proportion is represented by this formula. A. z =(pp0)/{p0(1p0)} C. z = (x)/ (s) B. z =(pp0)/ {p0(1p0)} D. T =(x)/ (s)

2. A veterinary clinic reports that out of 3,412 animals registered at the clinic, 1712 are cats, 1072 are dogs and the rest are birds. What is the population proportion of p, for cats at the clinic. A. 0.314 B. 0.184 C. 0.502 D. 3.14

3. How to get p? A. Multiply the total population by the number of items you're interested in B. Add the total population by the number of items you're interested in C. Subtract the total population by the number of items you're interested in D. Divide the total population by the number of items you're interested in

4. In a survey of 3121 people, 412 are under-vaccinated. What is the proportion ofunder-vaccinated people in the local population? A. 3533 B. 1285 C. 0.132 D. 2709

5. A survey claims that 9 out of 10 doctors recommend aspirin for their patients with headaches. To test this claim, a random sample of 100 doctors is obtained. Of these 100 doctors, 82 indicate that they recommend aspirin. Is this claim accurate? Use alpha = 0.05. What pair of null and alternative hypothesis that best fits in this survey? A. H0: p = 0.90 and Ha: p 0.90

6. In item # 5, find the proportion (p). A. p= 0.90 B. p= 0.82 C. p= 0.122 D. p= 1.82

7. Compute the test statistic in problem number 5, using z =(pp0)/{p0(1p0)}. A. 2.667 B. -2.667 C. 1.96 D. 1.645

8. In this example, let's say you had 1,000 people in the population and 237 of thosepeople have blue eyes. The fraction of people who have blue eyes is equal to. A. p= 4.22 B. p= 2.37 C. p= 23.7 D. p= 0.237

9. A Senior High School in the Division of Negros Oriental is reported that out of 5000 Academic Track students, 1800 are in General Academic Strand (GAS), 2050 are in HUMSS, all the rest belong to STEM. What is the population proportion of p, for GAS and STEM? A.0.314 B. 0.184 C. 0.502 D. 0.59 10. In a two-tailed type of test, what symbol you are going to use in an alternativehypothesis? A. > B.

11. This helps to decide whether to accept or reject a formulated statement after evaluation of the sample. A. Hypothesis testing C. Use of any test statistic B. Using significance level D. Avoiding type I and type II Error

12. When can we decide to reject a null hypothesis in left-tail level of significance? A. If the absolute computed value of the test statistic is greater than the absolutecritical value. B. If the absolute critical value of the test statistic is greater than the absolutecomputed value. C. If the significance level is equal to the test statistic. D. If the first four steps are met, then we decide to reject a null hypothesis.

13. Every hypothesis testing begins with the _________________________. A. Decision C. Conclusion B. Statement Of the hypothesis D. Significance Level

14. The level of significance is the maximum probability of committing a type I Error. This probability is symbolized by a Greek letter _______. A. (which means Rho) C. (means alpha) B. (means sigma) D. (means delta)

15. After a significance level is chosen, a _____________ is selected from a table for theappropriate test. A. A range of values C. Critical value B. Computed value D. Absolute value

I. Identify which among the following statements shows bivariate data. Write B if it shows bivariate data, and NB otherwise. Answer in your activity sheetotebook. ____1. Study on traffic accidents along with the weather on a particular day. ____2. Study on the time between eruptions of Taal Volcano vs. the duration of its eruption. ____3. Study on the college admission applicant's high school grade point average and standardized admission test scores ____4. Study on the relationship between number of hours the students study their lesson and their test scores in an exam. ____5. Study on the effect of age on a person's blood pressure.

II. MULTIPLE CHOICE. Choose the scatterplot that best fits this description:

II. MULTIPLE CHOICE. Choose the scatterp the description: 6. There is a strong, positive, linear association between the two variables. A. B. 7. There is a moderately strong, negative, linear association between the two variables with a few potential outliers. A. B. C. 8. There is a strong, negative, nonlinear association between the two variables. A. B.9. George was curious about the relationship between population density (in people per square kilometer) and average rent for Ill-bedroom apartments in different cities. He took a sample of cities and made this scatterplot: George describes this seatterplot: \"There is a positive linear association between population density and average rent. There don't seem to be any obvious outliers.\" What is missing in the description? A. Form B. Direction C.Strength l0. Lydia wanted to know if sons of taller fathers tend to be taller. Here are the heights of the fathers and sons in Lydia's sample: There is a positive linear association between fathers; heights and sons' heights. There are a few potential outliers. What is missing in the description? A. Form B. Direction C. Strength 155 165 [TE :36 malt-Untied