Question

Please help and explain. Definitions be great. Thanks in advance.

Chapter 1 Review Oui ooga n/courses/436/assignments/4073 Statistics > Assignments Chapter 1 Review Quiz Chapter 1 Review Quiz Statistics Online (Spring 2019) Lauren Max Quiz Chapter 1 Review Quiz 47 of 20 (6 oon te) This Quiz: 20 p E Question Determine whether the sample described below is a simple random sample A quality control engineer selects every 12,000th light buib that is produced. Does this sampling plan result in a simple random sample? O A. The sample is a simple random sample because every sample of the same size has the same chance of O B. The sample is a random sample because sach individual ight builb has the same chance of being selectod. O C. The sample is not a simple random sample because every sample of the same size doos not have the same chance of being selectod. OD. The sample is not a simple random sample because each individual ight bulb does not have the same chance of being solected Click to select your answer hp

Answer 1

In a sampling if each sample has an equal probability of being chosen, then the sampling is called random sampling. A sample chosen randomly is meant to be an unbiased representation of the total population.

Example  The total employees in organisations is 300(150 male and 150 female) and to conduct a survey, a sample group of 30 employees is selected to do the survey. In this case, the population is the total number of employees in the company and the sample group of 30 employees is the sample. Each member of the workforce has an equal opportunity of being chosen because all the employees which were chosen to be part of the survey were selected randomly. If the the sample group contains only male, the the survey is not unbiased then this sample is not random sample.

In our example always we are choosing ,12000 th light bulb, so not all the bulbs has an equal probability of being chosen. So this sample is not Random. THIRD OPTION IS CORRECT