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The big triple at the local race track consists of picking the correct order of finish of the first three horses in the ninth race. If there are 12 horses entered in today's ninth race, how many Big Triple outcomes are possible?
If they enroll this many pupils, how much would they need to charge per pupils in order to realize their profit goal of $5,000.
Determine whether there is a significant difference in mean temperatures in three cities using ONE-WAY ANOVA. Determine whether there is significant difference in mean temperatures.
For the following investigative scenarios, state the null hypothesis, and the alternative hypothesis. Also identify the Type 1 and Type 2 errors which can result based on the hypotheses that you defined.
When determining the sample size necessary for estimating the true population mean, which factor is not considered when sampling with replacement
Suppose that 20% of all Internet users have posted photos online. A sample survey interviews 1555 users. What is the probability that 300 or fewer people in the sample have posted photos online?
To determine the possible effect of a chemical treatment on the rate of seed germination, 300 chemically treated seeds and 250 untreated seeds were sown.
Tthen calculate the 95% and 99% CIs for the proportion of all female Hispanic drivers in Boston who wear seatbelts. Why is the 99% CI wider than the 95% CI?
Find the probability that the mean weight of those loads is less than 44.24 tons. Assume that the variable si normally distributed.
Compute the proportion p (hat) for your sample Show your computation. Find a 95% confidence interval for p. What is the margin of error in this confidence interval? What is the meaning of this interval with respect to your data and project?
Let z represent the standard normal variable and suppose a value is randomly selected. Find each of the following probabilities by:
There are three hospitals in the Tulsa, Oklahoma, area. The following data show the number of outpatient surgeries performed at each hospital last week.
What do the results suggest? How might you use this data from this sample size to develop a smoking cessation program at your workplace?
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