Projects 6-9
Project Six: My partner and I were given the topic of Snapping fingers. We had to use the statistical idea of binomial probabilities to find the probability that someone can snap their fingers or the probable number of people that can snap out of a group of people. In this project we found the probability of many different circumstances surrounding the original information that was given in the prompt.
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Project Seven: This project studied the number of swimsuits the average person at Fowler High School owns. This chapter was over how to find probabilities that go along with a normal distribution. We sampled 52 students of FHS and found that the average number of students owned about 6 swimsuits and the data was normally distributed around this mean. Through the course of this project we did many calculations to find many different values regarding our data like the empirical rule and the central limit theorem.
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Project Eight: The topic for this project was given to us and was regarding the P/E ratios for the largest companies in the US. This means that we were studying the price of a stock of a company over the earning that the stock brought in. This data that we were given was used to attempt to find the mean of a population when only given a sample (the sample mean was 25.18). We found an interval for which we are 90% confident that the population mean is within. This interval is between 19.27 and 31.09 points.
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Project Nine: The topic that my group received for this project is about the average time that someone spends on Facebook each day. We had to sample some students at FHS and try to prove, using our sample, that the average time that someone spends on Facebook is actually less than 20 minutes a day. After we collected all of our data and did the appropriate calculations we found that we could reject our null hypothesis so we are led to believe that our alternate hypothesis (that the average time is less than 20 minutes) is correct.
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