Mathematics, 21.07.2020 16:01, seanisom7
Using traditional methods, it takes 10.6 hours to receive a basic flying license. A new license training method using Computer Aided Instruction (CAI) has been proposed. A researcher used the technique with 22 students and observed that they had a mean of 10.2 hours with a variance of 1.96. A level of significance of 0.05 will be used to determine if the technique performs differently than the traditional method. Assume the population distribution is approximately normal. Make the decision to reject or fail to reject the null hypothesis.
Answers: 1
Mathematics, 21.06.2019 16:30, amir6658
Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.
Answers: 1
Mathematics, 21.06.2019 19:00, babygirlmiller
The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?
Answers: 1
Mathematics, 21.06.2019 23:00, freebyyy7032
Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain
Answers: 2
Using traditional methods, it takes 10.6 hours to receive a basic flying license. A new license trai...
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