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Your task in this project is to answer the following questions and write a report on your results. The material you may use to solve these problems can be obtained from anything we have studied so far in AP Statistics. In other words, you are not confined to only using techniques learned in, say, chapter ten or, say, chapter three. You may use any knowledge you have gained. Use the following information in answering all of the questions:
At the Drole Pineapple Company, managers are always interested in the sizes of the pineapples grown in the company's fields. The weights of pineapples grown in the Drole fields were approximately normally distributed with a standard deviation of 2.5 ounces. Last year, the pineapples harvested had a mean weight of 31 ounces.
1) Suppose a single pineapple is selected at random from last year's crop. What is the approximate probability that it weighs more than 35 ounces?2) Suppose two pineapples are selected randomly and independently from last year's crop. Find the approximate probability that exactly one of the two pineapples weighs more than 35 ounces. In addition to the original information given above, it is discovered that the managers of the Drole Pineapple Company are eager to test a new irrigation system. They did this during the current year's production cycle. With this new information, answer the following:3) How large a sample would you need to take to estimate the mean weight of the pineapples produced to within one ounce at a 92% confidence level?4) Suppose you take an SRS of 50 pineapples is taken from this year's crop and you find that the mean weight of pineapples in the sample is 31.6 ounces. Using a 95% confidence interval, determine whether this sample provides evidence of a change in the mean weight of pineapples produced. Explain your reasoning completely.5) Based on an SRS of 50 pineapples with a mean weight of 31.6 ounces, did the new irrigation system cause an increase in the mean weights of pineapples produced? Explain your answer completely.
Simple random sample of 100 elements is taken: (a) What is the chance of an element being included in the sample? (b) What is this chance called (hint: not probability)?
Determine the frequency of wrong numbers given to callers. Each sample consisted of 100 calls. Determine 95 pct limits. Is the process stable(i.e., in control)? explain.
Formulate the hypotheses to test to see if the mean of the population is at least 12 ounces.
What are differences between parametric dependent and independent samples? My facilitator has been known to describe a scenario with two objects and an associated measurement versus another scenario with one object and two associated measurements ..
A year after graduation. Find the probability that 8 randomly selected graduates all find jobs in their chosen field within a year of graduating.
In this problem set you will get some practice performing hypothesis tests for two samples. If you use Statdisk to perform any portion of these analyses, please include the results, label them, and refer to them accordingly in your interpretations..
Use the Poisson Distribution the indicated probabilities in one year, there were 116 homicide deaths in Richmond VA. For a randomly selected day
Raccoons are identified by gender and then weighed from three different neighborhoods. Using a 0.05 significance level what can you conclude from the following Two-Way ANOVA results?
In other words, could you generate two sets of random numbers (of length, say, 50) and set out the calculations in detail to determine whether the random variables are independent using chi-squared.
If the mean times for both George and Julia are actually the same, what is the probability that George will be let go?
In this forum post provide your results also elucidate what they mean in context of your favorite channel. To find 95 percent confidence interval for given data.
Determine the relationship between pretest scores and final exam scores after controlling for cumulative GPA. Compute SPSS test would you run?
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