Ask Question
30 June, 05:02

Assuming that a computer has been used to compute a P-value = 0.01635, what can we conclude about the following situation? A simple random sample of 50 speeds (in mph) is obtained from cars traveling on a section of I-10 through Tallahassee. The sample has a mean of 72.3 mph and a standard deviation of 7.4 mph. Use a 0.05 significance level to test the claim that the mean speed of all cars is greater than the posted speed limit of 70 mph.

+4
Answers (1)
  1. 30 June, 05:59
    0
    Step-by-step explanation:

    From the information given, we would write the hypothesis.

    For the null hypothesis,

    H0 : µ = 70

    For the null hypothesis,

    Ha : µ > 70

    This is a right tailed test because of the symbol of greater than.

    The decision rule is to reject the null hypothesis if the level of significance is greater than the p value and accept the null hypothesis if the level of significance is lesser than the p value.

    Therefore, since the significance level, 0.05 > p value, 0.01635, then we would reject the null hypothesis. There is enough evidence that the mean speed of all cars is greater than the posted speed limit of 70 mph.
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Assuming that a computer has been used to compute a P-value = 0.01635, what can we conclude about the following situation? A simple random ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers