Question

1. Which of the following is NOT used to calculate a test statistic (for a sample)?...

1. Which of the following is NOT used to calculate a test statistic (for a sample)?

a.Sample size

b.Sample standard deviation

c.Population size

d.Null parameter

2. When trying out a new intervention, we hope that the new intervention is at least as good as the current standard.

Based on this information, what should the research hypothesis for Study Example 2 be?

a.The iPhone app is better than the printed photo for preoperative assessment of surgery (iPhone > Printed).

b.The iPhone app is worse than the printed photo for preoperative assessment of surgery (iPhone < Printed).

c.The iPhone app is different than the printed photo for preoperative assessment of surgery (iPhone ≠ Printed).

Math   Statistics-And-Probability   
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Answer #1

1. Which of the following is NOT used to calculate a test statistic (for a sample)?

For calculation of the sample test statistics, only population mean is required.

Hence, the population size is not required

c. Population size

2. When trying out a new intervention, we hope that the new intervention is at least as good as the current standard.

As the new intervention should be at least good, hence, it should be either equal or better than the current standards

a.The iPhone app is better than the printed photo for preoperative assessment of surgery (iPhone > Printed).

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