Math

StatisticsQ&A LibraryUsing traditional methods, it takes 9.7 hours to receive a basic driving license. The new license training method uses computer aided instruction (CAI) has been proposed. A researcher use that technique with 13 students in observed that they had a mean of 9.8 hours with a standard deviation of 1.8. A level of significance of 0.1 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.Question

Asked Apr 12, 2019

3 views

Using traditional methods, it takes 9.7 hours to receive a basic driving license. The new license training method uses computer aided instruction (CAI) has been proposed. A researcher use that technique with 13 students in observed that they had a mean of 9.8 hours with a standard deviation of 1.8. A level of significance of 0.1 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.

Step 1

Given a sample of 13 students with sample mean 9.8 hours and standard deviation 1.8.

level of significance = 0.1

Null hypothesis : H_{o} : µ = 9.7

Alternative Hypothesis : Ha : µ ≠ 9.7

given that population distribution is approximately normal distribution.

Step 2

The test statistic is given by below shown formula. After substituting the value swe get the test statistic as...

Tagged in

Find answers to questions asked by student like you

Show more Q&A

Q: You are a graduate student in an M.D./Ph.D program, attempting a study of the efficacy of different ...

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you. ...

Q: How much does a sleeping bag cost? Let's say you want a sleeping bag that should keep you warm in te...

A: (a)Using the provided data, the sample mean and standard deviation can be calculated using Excel fun...

Q: Due to advances in medical science, the probability of a baby born in 2017 will be alive at age 90 i...

A: Binomial approximation:The normal distribution can be used as an approximation to the binomial distr...

Q: Researchers conducted a study to determine whether magnets are effective in treating back pain. The ...

A: (a)To test whether the treatment is effective, the following null and alternative hypotheses are con...

Q: Consider the following multiple regression model : y hat = -6.72 + 0.51x1 - 0.69x2 + 1.452x...

A: The given multiple regression model is as follows:

Q: In a population of ages where the mean age is 45 and the standard deviation is 5.25, what are the ag...

A: Given mean age = 45Standard deviation = 5.25The Z score with 0.0505 to its left is -1.64 and the Z s...

Q: . A tire manufacturer claims that the mean life of a certain type of tire is more than 30,000 miles....

A: The claim is provided as that the mean, life of a certain type of tire is more than 30,000 miles.a...

Q: Flying over the western states with mountainous terrain in a small aircraft is 40% riskier than flyi...

A: (a) Poisson distribution:It is a discrete probability distribution that models the number of events ...

Q: (c) Explain why four students coming in late would not necessarily form a random sample. (Select all...

A: (c)A random sample represents the whole population properly.It can happen that some students will be...