Mathematics, 17.12.2020 06:10 jessicamendozacelis2
A field test for a new exam was given to randomly selected seniors. The exams were graded, and the sample mean and sample standard deviation were calculated. Based on the results, the exam creator daims that on the same exam, nine times out of ten, seniors will have an average score within 3% of 81%. Is the confidence interval at 90%, 95%, or 99%? What is the margin of error? Calculate the confidence interval and explain what it means in terms of the situation.
Answers: 3
Mathematics, 21.06.2019 15:00
Abiologist is recording the loss of fish in a pond. he notes the number of fish, f, in the pond on june 1. on july 1 there were 63 fish in the pond, which is 52 fewer fish than were in the pond on june 1. which equation represents this situation? a. f β 52 = 63 b. f β 63 = 52 c. 63 β f = 52 d. f β 63 = β52
Answers: 1
Mathematics, 21.06.2019 19:00
If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?
Answers: 2
A field test for a new exam was given to randomly selected seniors. The exams were graded, and the s...
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