An Internet service provider states that the average number of hours its custome

Question

An Internet service provider states that the average number of hours its customers are online each day is 3.34. Suppose a randam sample of 14 of the company's customers is selected and the average number of hours that they are online each day is measured. The sample results are shown in the accompanying table 3.14 4.65 2.42 7.99 3.32 2.21 8.13 3.48 2.68 4.54 2.92 7.777.22 1.13 Based on the sample of 14 customers, how much sampling err ekists? Would you expect the sampling err to increase or decrease i the sample size was increased to 407 Based on the sample of 14 customers, how much sampling error exists? The sampling error for the given sample is E020001 Round to four decimal places as needed.) Would you expect the sampling error to increase or decrease if the sample size were 40? A. O B. C. O D. The sampling error would likely increase because the sample size decreased The sampling error would likely decrease because the sample size increased The sampling error would likely increase because the sample size increased. The sampling error would likely decrease because the sample size decreased

Explanation / Answer

Given,

Population mean = 3.34

From the sample,

Sample mean = Sum/ n = 58.92/ 14 = 4.2086

Hence,

Sampling error = 3.34 - 4.2086 = - 0.8686

Effect of sample size increase: Option B is correct.

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