since degree of freedom =sample size(n)-1
here sample size n=17
therefore degree of freedom =n-1 =17-1 =16
Correct option is T
QUESTION 17 A manufacturing operation consists of a single machine-tool system that produces an average of...
QUESTION 17 A manufacturing operation consists of a single machine tool system that produces an average of 15.5 transformer parts per hour. After undergoing a complete overhaul, the system was monitored by observing the number of parts produced in each of 17 randomly selected one hour periods. The sample mean - 15.42 and the sample standard deviation - 0,16 for the sample of ne17 production runs. Does the sample provide sufficient evidence to conclude that the true mean number of...
QUESTION 16 A manufacturing operation consists of a single machine-tool system that produces an average of 15.5 transformer parts per hour. After undergoing a complete overhaul, the system was monitored by observing the number of parts produced in each of 17 randomly selected one-hour periods. The sample mean = 15.42 and the sample standard deviation = 0.16 for the sample of n=17 production runs. Does the sample provide sufficient evidence to conclude that the true mean number of parts produced...
A manufacturing operation consists of a single machine tool system that produces an average of 15.5 transformer parts per hour. After undergoing a complete overhaul, the system was monitored by observing the number of parts produced in each of 17 randomly selected one hour periods. The sample mean - 15.42 and the sample standard deviation-0.16 for the sample of ne17 production runs. Does the sample provide sufficient evidence to conclude that the true mean number of parts produced each hour...
A manufacturing operation consists of a single machine tool system that produces an average of 15.5 transformer parts per hour. After undergoing a complete overhaul, the system was monitored by observing the number of parts produced in each of 17 randomly selected one-hour periods. The sample mean = 15.42 and the sample standard deviation - 0.16 for the sample of n=17 production runs. Does the sample provide sufficient evidence to conclude that the true mean number of parts produced each...
QUESTION 22 A manufacturing operation consists of a single machine tool system that produces an average of 15.5 transformer parts per hour. After undergoing a complete overhaul, the system was monitored by observing the number of parts produced in each of 17 randomly selected one-hour periods. The sample mean - 15.42 and the sample standard deviation - 0.16 for the sample of ne17 production runs. Does the sample provide sufficient evidence to conclude that the true mean number of parts...
QUESTION 21 A manufacturing operation consists of a single machine-tool system that produces an average of 15.5 transformer parts per hour. After undergoing a complete overhaul, the system was monitored by observing the number of parts produced in each of 17 randomly selected one-hour periods. The sample mean - 15.42 and the sample standard deviation - 0.16 for the sample of n-17 production runs. Does the sample provide sufficient evidence to conclude that the true mean number of parts produced...
QUESTION 1 A manufacturing operation consists of a single machine tool system that produces an average of 15.5 transformer parts per hour. After undergoing a complete overhaul, the system was monitored by observing the number of parts produced in each of 17 randomly selected one-hour periods. The sample mean - 15.42 and the sample standard deviation = 0.16 for the sample of n 17 production runs. Does the sample provide sufficient evidence to conclude that the true mean number of...
QUESTION 14 Amanufacturing operation consists of a single machine-tool system that produces an average of 15.5 transformer parts per hour. After undergoing a complete overhaul the system was monitored by observing the number of parts produced in each of 17 randomly selected one-hour periods. The sample mean - 15.42 and the sample standard deviation - 0.16 for the sample of ne17 production runs. Does the sample provide sufficient evidence to conclude that the true mean number of parts produced each...
The price to earnings ratio (P/E) is an important tool in financial work. A random sample of 14 large U.S. banks (J. P. Morgan, Bank of America, and others) gave the following P/E ratios.† 24 16 22 14 12 13 17 22 15 19 23 13 11 18 The sample mean is x ≈ 17.1. Generally speaking, a low P/E ratio indicates a "value" or bargain stock. Suppose a recent copy of a magazine indicated that the P/E ratio of...
1. A hypothetical investigation on rider satisfaction with a particular public transit system serving commuting residents of British California (BC) and Prince Edward’s County (PEC) offers some interesting findings. The proportion of commuters from BC that indicated low satisfaction with the transit system’s service in the 2018 calendar year was 65 percent, and the proportion from PEC was 70 percent. These point estimates were based on samples of 5,380 BC commuters and 6,810 PEC commuters, whose system-using commuters number in...