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Activity #1: I. Look at the 60 bottles of coconutjuice as consisting of 10 columns and 6 rows. Compute the means of the column samples.
Activity #1: I. Look at the 60 bottles of coconutjuice as consisting of 10 columns and 6 rows. Compute the means of the column samples. What is the overall mean? This value is also an estimate of the population mean u Sample Sample Sample Sample Sample Sample Sample Sample Sample Sample 5 10 498 497 497 497 49'? 49'! 49'? 497 9 497 497 497 '9'? 497 49'? 497 49'? '9'! 2.GPAs of Entering Mathematics Majors A random selection of 40 entering Mathematics majors has the following GPAs. Assume that a = 0.46. Estimate the true mean GPA with 99% condence. It. A random selection of school children were asked whether they Like (1 ), Do not like (0). or cannot decide (2) whether they like or not, a new kind of snack served by the school feten'a. The responses are shown as follows: What is the proportion of respondents who like the new snack? What is the proportion of respondents who do not like the new snack? What is the proportion of respondents who cannot decide? . . In a certain village. Leony wants to estimate the mean weight p, in kilograms, of all six- 'I ear old children to be included in a feeding program. She wants to be 99% condent that e estimate of u is accurate to within 0.06 kg. Suppose from a previous study. the tandard deviation of the weights of the target population was 0.5 kg, what should the ample size be? nrichment #1: ultiple Choice: lrection: Choose the letter of the best answer 1. What do you call the set of all people, objects, events. or ideas you want to investigate? a. sample b. population 0. data d. statistics 2. A sample refers to of a population. a. a subset b. a list c. a description d. another name 3. What is the mean of 13, 27, 29. 17. and 14? a. 29 b. 28 c. 20 d. 13 4. What do you call a number that describes population characteristics? a. sample statistics b. parameter c. variable d. decimal 5. Which of the following symbols denotes population mean? a. X b. o c. p d. s 6. What do you call a continuous. symmetric, and a bell-shaped distribution of a variable? a. graph b. pie chart 0. normal curve d. line graph 7. What values are indicated at the base of a normal distribution? a. z b.t c. R d. s 8. The area under the curve is: a. 1 b. 0.99 c. 0.95 d. 0.5 9. In a standard normal distribution. the mean is and the standard deviation is . a. 1,0 b. 0.1 c. 1,1 d. 0,0 10. In a standard normal distribution, what percent of the area falls below the mean? a. 95% b. 90% c. 68% d. 50%
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