Students at PSUC randomly selected 25 people and tested the accuracy of their smartwatches, with positive errors representing watches that are ahead of the correct time and negative errors representing watches that are behind the correct time. The 25 values have a mean of 55.3 seconds and a standard deviation of 108.0 seconds. Test the claim that the population of all smartwatches has a mean error equal to 0 seconds. Assume a 0.02 significance level. Use the Critical Value Method of Testing (this means NO P-Values!). In your work space below, you will need to have - 1. The null hypothesis, Ho 2. The alternative hypothesis, H1 3. The test statistic 4. The type of test (left, right, two-tailed) and the critical value 5. The decision to accept Ho or reject Ho
Students at PSUC randomly selected 25 people and tested the accuracy of their smartwatches, with positive errors representing watches that are ahead of the correct time and negative errors representing watches that are behind the correct time. The 25 values have a mean of 55.3 seconds and a standard deviation of 108.0 seconds. Test the claim that the population of all smartwatches has a mean error equal to 0 seconds.
Assume a 0.02 significance level.
Use the Critical Value Method of Testing (this means NO P-Values!).
In your work space below, you will need to have -
1. The null hypothesis, Ho
2. The alternative hypothesis, H1
3. The test statistic
4. The type of test (left, right, two-tailed) and the critical value
5. The decision to accept Ho or reject Ho
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