Question

A researcher developing scanners to search for hidden weapons at airports has concluded that a new scanner isis significantly better than the current scanner. he made his decision based on a test using alpha equals 0.025 .α=0.025. would he have made the same decision at alpha equals 0.10 question mark α=0.10? how about alpha equals 0.01 question mark α=0.01? explain

Answer 1

There is not enough information in this question to answer it. You cannot determine significance with just the alpha value. You need the actual test statistic (p-value) to determine this.

If the p-value is less than the alpha value, you reject the null hypothesis (the there is no difference).