The study of statistics is about using information from a sample to say somethin

Question

The study of statistics is about using information from a sample to say something about the population. Suppose you were a quality control officer for a company that makes lightbulbs. Which of the following would be the best description of the "population" you would be interested 1. in The hours until burnout for all lightbulbs the company produces. B. A. The hours until burnout for the lightbulbs produced by the company over the next 5 years. C. Information about the technology used in manufacturing the bulbs. " D. None of the above. Which is a sample that you could use in order to draw some inferences about the population? A. Blueprints for the machines used to make the bulbs. B. The company's projections about the lightbulbs that will be produced. C. The hours until burnout observed for 200 bulbs recently sold and used. D. All of the above. 2. and pie charts are Bar charts are usually best used to represent information about generally best used to represent information about A. Relative Proportions, Relative Proportions B. Relative Proportions; Absolute Quantities C. Absolute Quantities; Relative Proportions 3. Sometimes, data will be displayed using text that identifies elements as members of a specific group. Excel features like pivot tables and the COUNTIF function enable us to take such 4. data and convert it into more comprehensible data. B. Quantitative; Descriptive statistics D. Categorical; Descriptive Statistics Use the following table of data on delivery times (in days) to 5 locations for two transport companies for questions 5-11.(You do not need to fill in the left two columns, but may do so if you find it useful). Lawson Trucking Clarke Dstnbution 10 10 Location # Lawson (Deviations, Clarke (Deviations) 13 12

Explanation / Answer

Solution1:

QC officer checks for the quality of production

ALL REFERS TO POPULATION

populatiion is the hours untill burnout for all lightbulbs the company produces.

OPTION A

Solution2:

sample referes to sample size here n=200

the hours untill burnout observed fir 200 bulbs recently sold and used

OPTION C

Solution3:

bar charts represent raw data

height of bar can be frequency,relative frequency or percent frequency

pie charts represent percenatges as a whole

each slice represnt relative frequency or percent frequency,

HERE OPTION IS

ABSOLUTE QUANTITIES ,RELATIVE PROPORTIONS

OPTION C

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