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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.
There is sufficient evidence to support the claim that the mean speed of all cars on that section of I-10 is greater than the posted speed limit of 70 mph.
There is insufficient evidence to support the claim that the mean speed of all cars on that section of I-10 is greater than the posted speed limit of 70 mph.
We cannot conclude anything without knowing the population size.
We are 50% confident that drivers exceed the speed limit.
According to the Scranton Edison Company, utility-plant investment per employee was approximately $453,300; $492,400; $498,900; $531,900; $553,900;
What kind of probability uses sample spaces to find out numerical probability that event will happen?
Draw the distribution of the random variable X, representing her time of arrival. (Be sure to include labels and values on the axes.)
At.01 significance level, is there difference in mean number of times men and women order take-out dinners in month? Determine the p -value?
A soft drink machine outputs a mean of 24 ounces per cup. the machines output is normally distributed with a standard deviation of 2 ounces. what is the probability of filling a cup between 21 and 26 ounces.
A normal population has a mean of 60 and a standard deviation of 3. You select a sample of 36. Compute the probability the sample mean is (Round z values to 2 decimal places and final answers to 4 decimal places):
Determine 95% confidence interval evaluate for average number of years served by all Supreme Court justices?
When the non-parametric statistics utilized? Write down an example.
What is the probability that none are a commercial success?
Also include information about the number of participants you would assess and how you would go about estimating effect size and statistical power (when relevant).
What can be completed to remedy multicollinearity.
What is the probability of a false negative test (the probability that a person having muscular distrophy tests negative)?
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