When engaging in weight-control (fitness/fat burning) types of exercise, a person is expected to attainapproximately 60% of his or her maximum heart rate. For 20-year-olds, this rate is approximately 120bpm. A simple random sample of thirty 20-year-olds was taken, and the sample mean was found to be107 bpm, with a standard deviation of 45 bpm. Researchers wonder if this is evidence to concludethat the expected level is actually lower than 120 bpm. (a = 0.05)What decision do you make about the hypothesis test?O We will accept the null hypothesisO We reject the null hypothesisO We will not able to make a decision from data.O We will fail to reject the null hypothesis

Given data : sample size, n =30 sample mean, x̄ = 107 sample standard deviation,s=…

Answered: What decision do you make about the…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Hello can you answer 4 for me
If a hypothesis test rejects the null hypothesis test at a = 0.05 will it also always reject the null at a = 0.01?
Charlie will perform a hypothesis test at the a = 0.05 level. Felice will perform the same test at the a = 0.01 level.
Provide an appropriate response. If we fail to reject the null hypothesis when the null hypothesis is false, then we have made a Type B error Type I error Correct decision Type II error
When the results of a hypothesis test are determined to be statistically significant, then we null hypothesis. the |compartmentalize reject | fail to reject polarize Which of the following facts about the p-value of a test is/are correct? | The p-value is calculated under the assumption that the null hypothesis is true. | The smaller the p-value, the more evidence the data provide against Ho. Both of the above are correct None of the above are correct.
Can I get help on what step I missed?
Suppose that 5000 students who have taken the SAT exam once are randomly assigned to either take an SAT coaching course or not, with the following results in their improvements in SAT scores when they take the exam a second time: Coaching Group Control Group Sample Sample Size Sample Mean Standard Deviation 2500 2500 46.2 44.4 12.3 5.5
ability--And, Conditional A fair coin is tossed and a fair six-sided die is rolled. Compute the probability of tossing a heads and a number greater than 2. Preview Enter your response as a reduced fraction.
Which of these is true regarding hypothesis tests? If the P-value is less than the specified alpha level, the null is accepted If the P-value is less than the specified alpha level, the null is rejected in favor of the alternative If the P-value is greater than the specified alpha level, the alternative is accepted none of these statements is true If the P-value is greater than the specified alpha level, the null is rejected in favor of the alternative

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What decision do you make about the hypothesis test? We will accept the null hypothesis We reject the null hypothesis We will not able to make a decision from data. We will fail to reject the null hypothesis