Concept explainers
Using Technology. In Exercises 5-8, identify the indicated values or interpret the given display. Use the
- a. Is the test two-tailed, left-tailed, or right-tailed?
- b. What is the test statistic?
- c. What is the P-value?
- d. What is the null hypothesis, and what do you conclude about it?
- e. What is the final conclusion?
8. Biometric Security In a USA Today survey of 510 people. 53% said that we should replace passwords with biometric security, such as fingerprints. The accompanying Statdisk display results from a test of the claim that half of us say that we should replace passwords with biometric security.
Statdisk
Sample proportion; 0.5294118
lest Statistic, r 13284
Critical E 21.9600
P-Value: 0.1840
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