Answer the following

answer. A B C D 1. Which of the following formulas is used to get the margin O O O O of error? A. E = Za/2(6) C. * E = () Za/2 B. E = Za/2 n D. E = n B C D 2. Which of the following symbols is used for critical values? O O O A. E C. n B. Zc D. . A B C D 3. Which of the following symbols stand for the margin of O OO O error? A. n C. E B. Za/2 D. o A BCD 4. Which of the following symbols is used for the population O O O standard deviation? A. E C. n B. Za/2 D. oABCD 5. Given: n=60, 6 =0.7, level of confidence is 96%. What is the margin of error in the given data? A. 0.118 C. 0. 158 B. 0.151 D. 0. 185 A B D 6. What is the critical value of having a 95% confidence level? C. 1.96 0 0 0 A. 1.28 B. 1.44 D. 2.10 For items 7 - 9: A sample size of 50 has a mean of 20. The population standard deviation is 18 and the confidence level to be used is 95%. BCD 7. What is the sample size in the given statement? O A. 18 C. 50 B. 20 D. 98 ABCD 8. What is the margin of error in the given statement? A. 3.67 C. 5.93 B. 4.99 D. 6.22 B C D 9. What is the length of the confidence interval? A. 1.44 C. 7.76 B. 5.45 D. 9.98 ABCD 10. Which of the following values is the critical value of a 98% level of confidence? A. 1.44 C. 2.10 B. 1.96 D. 2.33 For items 11 - 13: A random sample of 150 stores of Atimonan Mall has an average daily income of Php 25,000. The population standard deviation is Php 12,000 and a 95% confidence level is to be used. A B C D o 0 0 0 11. What is the x in the given statement? A. 150 B. 12,000 C. 25,000 D. 37,000 ABCD o 0 0 0 12. What is the o in the given statement? A. 150 B. B. 12,000 C. 25,000 D. 37,000B D O O O 13. What is the length of the confidence interval for the average daily income of all stores in Atimonan Mall. A. 3840.80 C. 3240.65 B. 3480.98 For items 14 - 15: D. 3080.23 The average weight of 100 sold chicken is 150 kilos. The standard deviation of the weights of all the chicken in the store is 90 kilos and an 85% level of confidence is to be used. B C D 14. Which of the following values is the Zcfor the given O O O O confidence level? A. 1.44 C. 1.75 B. 1.645 D. 1.96 A 15. What is the length of the confidence interval? A. 25.92 C. 29.96 B. 26.73 D. 32.90oil a separate Sheet of paper. 1. Which of the following coefficients are the 90% confidence coefficients? A. +1.645 B. $1.96 C. +2.40 D. 12.58 2. What do you call a subset of a population? A. estimation B. interval C. proportion D. sample 3. Which of the following values illustrates confidence level? A. 90 - 100 B. 65.0 C. 90% D. 35.75 4. When alpha is 0.05, confidence level is equal to A. 10% B. 95% C. 90% D. 99%5. Confidence interval is also known as A. interval estimate B. confidence coefficient C. interval coefficient D. confidence interval For numbers 6-11, refer to the following values: 90% confidence level, o = 3.5 and E = 0.5. 6. What is the given confidence level? A. 90% B. 0. 10 C. 0.01 D. 0.05 7. What is a? A. 95% B. 0.10 C. 0.01 D. 0.05 8. What are the confidence coefficients? A. +1.645 B. $1.96 C. +2.20 D. +2.58 9. Which of the following values is the given population standard deviation? A. 0.01 B. 3.5 C. 0.5 D. 90% 10. What is the margin of error? A. 0.01 B. 3.5 C. 0.5 D. 90% 11. Compute for the appropriate sample size. A. 131 B. 132 C. 133 D. 134 12. What is the sample size needed if the margin of error is 30 and the standard deviation of 45 with a 98% confidence level? C. 10 D. 11 E. 12 F. 13 13. Calculate the sample size of the given data: E = 5, o = 20, with a 95% confidence level. A. 59 B. 60 C. 61 D. 6214. Which of the following variables is NOT needed in computing the minimum sample size for the estimation of the population mean? A. confidence level B. sample mean C. population standard deviation D. margin of error 15. Which of the following formulas is used is used to get the sample size of the population? Za/, E. A. n = ( 2 B. n = (- Za/ 232 C. n = G EO 2 Cza/ 2 D. n = (- Za/ 20)2 EWrite the formulas here. Margin of Error Minimum Sample Size E = n = where: n = E : Za/ 2