We are interested in assessing the number of ropes a person can jump rope. We have a random sample of 31 people and find that the average person can jump rope 13.6 times with a standard deviation of 3.4. What is the 90% confidence interval for the actual average number of ropes a person can jump? Enter your answers accurate to one decimal place. ( Can we conclude that the actual average number of ropes a person can jump is at most 14.1? Yes O No O Not enough information to determine this Beyond representative sampling, what assumptions are needed to satisfy the requirements for this confidence interval? OX~ binomial, np ≥ 5 and nq ≥ 5

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We are interested in assessing the number of ropes a person can jump rope. We have a random sample of 31
people and find that the average person can jump rope 13.6 times with a standard deviation of 3.4. What is
the 90% confidence interval for the actual average number of ropes a person can jump? Enter your answers
accurate to one decimal place.
Can we conclude that the actual average number of ropes a person can jump is at most 14.1?
Yes
O No
Not enough information to determine this
Beyond representative sampling, what assumptions are needed to satisfy the requirements for this confidence
interval?
OX binomial, np 25 and nq 25
OX normal or n ≥ 30
OX normal and n ≥ 30
OX~ binomial and at least 5 successes and failures
N
N
N
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Transcribed Image Text:We are interested in assessing the number of ropes a person can jump rope. We have a random sample of 31 people and find that the average person can jump rope 13.6 times with a standard deviation of 3.4. What is the 90% confidence interval for the actual average number of ropes a person can jump? Enter your answers accurate to one decimal place. Can we conclude that the actual average number of ropes a person can jump is at most 14.1? Yes O No Not enough information to determine this Beyond representative sampling, what assumptions are needed to satisfy the requirements for this confidence interval? OX binomial, np 25 and nq 25 OX normal or n ≥ 30 OX normal and n ≥ 30 OX~ binomial and at least 5 successes and failures N N N Submit Question
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