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Assume that a sample is used to estimate a population mean mu. Find the 80% confidence interval for a sample of size 1075 with a mean of 36.7 and a standard deviation of 5.5. Enter your answer as a tri-linear inequality accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).
If university officials say that at least 70% of the voting student population supporting the fee increase, what conclusion can be drawn based on a 95% level of confidence?
Suppose that Richard Rice, a resident of the area, decides to take the test for malaria. If his test results indicate that he has malaria, what is the probability that he actually has malaria?
statistics is about more than calculations. it is about turning data into information and using this information to
the amount of money deposited into a certain vending machine on a daily basis has approximately a normal distribution
When a large shipment of alternators is received at the plant, 100 are tested and if more than two are nonconforming, the shipment is returned to the alternator manufacturer. What is the probability of returning a shipment?
Use the .02 significance level. 2. The decision rule is to reject H0 if Z greater than ___? 3. Compute the value of the test statistic. The test statistic is Z=___. 4. What is the p value?
an airport ventilation system takes 2.5 m3s air at 100 kpa 17 c into a furnace heats it to 52c and delivers the flow to
dr. cardenas studied political attitudes among di erent groups of 20- 40- and 60- year-olds. political attitudes were
The marks on a statistics midterm test are normally distributed with a mean of 78 and a standard deviation of 6. What is the probability that a class of 50 has an average midterm mark that is more than 75?
What is the probability that a fish is *exactly*, *precisely* to any level of accuracy or measurement, 12.0 inches long?
samples of our students from an applied experimental design class were polled regarding the number of hours they spent
What percentage of bags will weigh more than 16.4 ounces? What percentate of bags will weigh less than 15.92 ounces
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