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Robert stands three times on a pair of scales in a period of 5 minutes. The first time he weighs 92kg, the second time he weighs 102kg and the thrd time he weighs 95 kg. What conclusion can we draw based on this information on the pair of scales?
a. The pair of scales is reliable and valid
b. The pari of scales is not reliable.
c. The pair of scales is not valid.
d. The pair of scales is not reliable and not valid.
Find the critical t-value that corresponds to 90% confidence. Assume 90 degrees of freedom.
Find out the p-value associated with test of hypothesis you conducted?
q. which of the following is not an assumption that must be met for the least squares estimations to be valid? why?a
When only two treatments are involved, ANOVA and the Student t test (Chapter 11) result in the same conclusions. Also, . As an example, suppose that 14 randomly selected students were divided into two groups, one consisting of 6 students and the othe..
Identify a research question from your professional life, research interests, or everyday experience that could be addressed by this analysis.
You are looking at a bond to add in your portfolio. The bond has a 7.2 percent coupon (paid semiannually), 10 years left to maturity, and can be purchased at par ($1,000).
a pharmaceutical company knows that approximately 5 of its birth-control pills have an ingredient that is below the
captain ds tuna is sold in cans that have a net weight of 8 ounces. the weights are normally distributed with a mean of
Arrivals 2011. Will your flight get you to your destination on time? The U.S. Bureau of Transportation Statistics publishes information about airline performance.
use the given sample data to test the claim that p1 gt p2. use a significance level of 0.01sample 1sample 2n1 85n2
use a significance level of a0.05 to test the claim that p1p2. use the given sample sizes and numbers of successes to
Food intake and weight gain. If we increase our food intake, we generally gain weight. Nutrition scientists can calculate the amount of weight gain that would be associated with a given increase in calories.
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