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1. An experimenter used .05 for a statistical test and retained the null hypothesis. Would it be it be correct to say that the experimenter can be 95% sure that H0 is true? Explain.
2. The symbolic expression "p. 001" occurs in the results section of a research report. Does this indicate that the investigator used the very conservative level of significance .001 to evaluate the outcome of that particular test? Explain.
Assume a sample of 300 subscribers to The Wall Street Journal found 165 subscribers with an income over $131,000 and 135 subscribers with an income under $131,000. Can you conclude that there is any difference between the median incomes of the two..
A market researcher of a trucking company intends to carry out a state wide survey concerning truck repairs. He gathered data on the costs of all repairs performed by a truck owner during the last year.
the life in hours of a magnetic resonance imagining machine mri is modeled by a weibull distribution with parameters
You flip a coin three times. (a) What is the probability of getting heads on only one of your flips? (b) What is the probability of getting heads on at least one flip?
What is the probability that either of the company shows profit - What is the probability the family has all children of the same sexes
a coin is flipped until heads occur twice. define two random variables x and y to be the trial numbers at which the
a major u.s. tire maker wants to review its warranty for their rainmaker tire. the warranty covers at most 40000 miles.
Calculate the sampling error associated with the mean of this random sample. What would you tell this advisor regarding the sample he has selected?
Is there a difference between the distribution of community college statistics students and the distribution of university statistics students.
State the appropriate hypotheses. Obtain a test statistic and p-value. Interpret the results at ? = .01. Is normality assured? Is the difference large enough to be important?
suppose that n items are sampled from a manufacturing process and the number of de- fective items found among these is
Create and attach a normal curve to this document with the following elements: the normal curve, a label of the average number of shoppers, and labels for the sample means of 441 and 446 shoppers. Include all the appropriate symbols.
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