PLEASE HELP ME ANSWER THE FOLLOWING

24. This R command is used to load packages for use in a particular analysis in RStudio.

A. install.packages

B. library

C. read.csv

D. load

25. The mean monthly starting salary for 12 randomly sampled business school graduates is Php35400. If the sum of the monthly starting salaries of the first 11 graduates is Php392, 300 how much is the monthly starting salary of the 12th graduate?

A. Php32,450

B. Php32,500

C. Php34,800

D. Php35,454.55

26. A stock investor purchased 3000 shares of ACEN stocks in May at Php6.79 per share. In July, she purchased an additional of 4800 shares at Php8.47 per share. In August she purchased an additional of 8500 shares when the price per share went down to Php7.82. The weighted mean price per share of her ACEN stock is

A. Php7.69

B. Php7.82

C. Php8.15

D. Php8.47

27. Jack has been employed since January 2021 receiving a net monthly salary of Php20000. In anticipation of his Christmas expenses and since he had not saved any part of his salary during the past 9 months, he decided to save 15% of his net monthly salary for October to December. What will be his average monthly savings for the entire year?

A. Php750

B. Php900

C. Php1000

D. Php3000

28. A market researcher plans to conduct a satisfaction survey where she selects sample units by means of stratified random sampling. She divides the population into five categories or strata with sizes 600, 200, 400, 500, and 300. If a sample equal to 20% of the population size is to be drawn using equal allocation, what should be the sizes of the sample to be drawn from each stratum?

A. ?1 = 90, ?2 = 60, ?3 = 90, ?4 = 90, ?5 = 70

B.?1 = 100, ?2 = 100, ?3 = 100, ?4 = 100, ?5 = 100

C. ?1 = 100, ?2 = 40, ?3 = 80, ?4 = 120, ?5 = 60

D. ?1 = 80, ?2 = 80, ?3 = 80, ?4 = 80, ?5 = 80

29. Company X pays its 50 employees a mean monthly salary of Php19,500; a second company Y pays its 62 employees a mean monthly salary of Php24,500; and, a third company Z pays its 75 employees an average monthly salary of Php28,000. What is the average monthly salary per employee in all the three companies? (Round off answer to the nearest peso.)

A. Php 24,000

B. Php24,500

C. Php24,567

D. Php28000

For problems 30 to 32, refer to the following: The price-earnings ratio for 19 stocks in the retail trade category are:

8.6 9.99.89.49.111.58.010.4 10.2 11.1

10.58.3 8.78.4 11.99.9 9.1 8.3 10.7

30. How many observations fall above the 7th decile of the price-earnings ratio?

A. 5

B. 6

C. 7

D. 8

31. What is the first quartile value of the price-earnings ratio?

A. 8.3

B. 8.65

C. 10.45

D. 11.18

32. How many observations fall below the 1st quartile value of the price-earnings ratio?

A. 5

B. 6

C. 7

D. 8

33. This is a tab in RStudio that shows all objects that are loaded or generated during the current session.

A. Files

B. Environment

C. History

D. Viewer

34. Consider a data set of 11 distinct measurements with mean equal to A and median equal to B. If the highest value was decreased to a value smaller than the median B, how would the mean and median be affected?

A. The mean and median will both decrease.

B. The mean and median will not change.

C. The mean will not change and the median will decrease.

D. The mean will decrease and the median will not change.

35. Which statement regarding the parameter and statistic IS TRUE?

A. A parameter is based on conceptual measurements, but a statistic is based on a combination of real and conceptual measurements.

B. A statistic changes every time it is measured using a different sample, but a parameter remains fixed in value.

C. A parameter changes each time you measure it from the same population, but a statistic remains fixed in value across all possible samples.

D. The true value of a statistic can never be known, but the true value of a parameter can be known.

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