Statistics

1. A sampling technique in which every number of the population has an equal chance or being selected. a. Systematic sampling c. Cluster sampling b. Lottery sampling d. Stratified random sampling 2. The probability distribution when all possible sample size n are repeatedly drawn from a population. a. Sampling c. Sampling distribution b. Parameter d. Central Limit Theorem 3. It is a subset or a small group selected from a certain population either by random or non-random sampling. a. Sample size c. Population b. Sample d. Sampling 4. Using the Sloven's formula, what is the sample size n for N = 11.000 and e = 5%? a. 385 b. 386 c. 387 d. 388 5. A certain population has a mean of 13.2 and a standard deviation of 3.8. It random samples of size 5 is taken irorn this population, which of the iollowing statements is correct? a. The mean of the sampling distribution 01 the sample means is equal to 13.2. b. The mean 01 the sampling distribution of the sample means is less than 13.2 c. The standard deviation of the sampling distribution of the sample means is 3.8 d. The standard deviation of the sampling distribution of the sample means is 13.8 6. How many possible samples of size n=3 can be drawn from a population of size 12? a. 36 b. 1728 c. 144 d. 220 iv 7. The number of samples of size n that can be drawn from a population of size N is given by 8,. NC" b. \"ON 0. MPH d.nPN B. What is the shape of the sampling distribution of the means it random samples of size n becomes larger? a. Left skewed c. Normal b. Right skewed d. rectangular 9. Which sample size will give a smaller standard error of the mean? a. 10 b. 20 c. 30 d. 35 The average population increase in a certain barangay is 180 and a standard deviation of 8. Assume that the average increase of population is normally distributed. 10. What is the probability that a randomly selected year will have a population increase greater than 185 for 15 years. a. 0.7011 b. 0.4523 c. 0.4922 d. 0.0078