subject
Mathematics, 05.05.2020 04:05 leahglover19

The inside diameter of a randomly selected piston ring is a random variable with mean value 13 cm and standard deviation 0.08 cm. (a) If X is the sample mean diameter for a random sample of n = 16 rings, where is the sampling distribution of X centered and what is the standard deviation of the X distribution? (Enter your standard deviation to five decimal places.) center cm standard deviation cm (b) Answer the questions posed in part (a) for a sample size of n = 64 rings. (Enter your standard deviation to five decimal places.) center cm standard deviation cm (c) For which of the two random samples, the one of part (a) or the one of part (b), is X more likely to be within 0.01 cm of 13 cm? Explain your reasoning. X is more likely to be within 0.01 cm of 13 cm in sample (a) because of the decreased variability with a smaller sample size. X is more likely to be within 0.01 cm of 13 cm in sample (a) because of the increased variability with a smaller sample size. X is more likely to be within 0.01 cm of 13 cm in sample (b) because of the increased variability with a larger sample size. X is more likely to be within 0.01 cm of 13 cm in sample (b) because of the decreased variability with a larger sample siz

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 14:50
Which best describes the strength of the correlation, and what is true about the causation between the variables? it is a weak negative correlation, and it is not likely causal. it is a weak negative correlation, and it is likely causal. it is a strong negative correlation, and it is not likely causal. it is a strong negative correlation, and it is likely causal.
Answers: 1
question
Mathematics, 21.06.2019 19:20
1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?
Answers: 2
question
Mathematics, 21.06.2019 22:30
Agroup of randomly selected members of the foodies food club were asked to pick their favorite type of food. the bar graph below shows the results of the survey. there are 244 members in the foodies.
Answers: 3
question
Mathematics, 21.06.2019 23:00
How can writing phrases as algebraic expressions you solve problems?
Answers: 2
You know the right answer?
The inside diameter of a randomly selected piston ring is a random variable with mean value 13 cm an...
Questions
question
Mathematics, 08.01.2020 07:31
question
Mathematics, 08.01.2020 07:31
question
History, 08.01.2020 07:31