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A hot dog vendor provides onions, relish, mustard, ketchup, Dijon ketchup, and hot peppers for your hot dog. How many variations of hot dogs are possible using (a) one condiment? (b) Two condiments? (c) No condiments? (d) all of the condiments?
A food processor is concerned that the 16 oz. can of sliced pineapple is being overfilled. The quality control department took a random sample of 50 cans and found that the arithmatic mean weight was 16.05 oz.
if a population has a standard deviation ? of 25 units what is the standard error of the mean if samples of size 100
study where a drug was given to 10 patients and a placebo to another group of 10 patients to determine if the drug has an effect on a patient's illness?
define the terms parameter and statistic be sure that the concepts of population and sample are included in the
You are testing the null hypothesis that there is no linear relationship between two variables, X and Y. From your sample of 20, you determine that SSR = 60 and SSE = 40. Compute the correlation coefficient by first computing r squared and assuming..
If the observed value is 4, the expected value is 5, and the standard error is 4, then the test value used for the z test is equal to
Candidate A is running for president of the student government at a large university.
In playing the Lemonade Stand Game, Bob decreased his price per cup by two cents, from $.27 per cup to $.25 per cup. At the .05 level of significance, did net revenue increase?
What size random sample should you take if you want to estimate the annual salary in the population with 99 percent confidence and a maximum margin of error of $250?
The dataset Length.jmp contains a simple random sample of 50 stainless steel sheet metal screw from Crown Bolt
Which of the following is the correct interpretation for the regression coefficient of Age? The regression coefficient is not significantly different from zero.
the producers of a new toothpaste claim that it prevents more cavities than other brands of toothpaste. a random sample
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