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1. There are 23 people at a party. Explain what the probability is that any two of them share the same birthday.
2. A cold and flu study is looking at how two different medications work on sore throats and fever. Results are as follows:
Analyze the data and explain which one would be the better medication for both a sore throat and a fever.
3. The United States employed a statistician to examine damaged planes returning from bombing missions over Germany in World War II. He found that the number of returned planes that had damage to the fuselage was far greater than those that had damage to the engines. His recommendation was to enhance the reinforcement of the engines rather than the fuselages. If damage to the fuselage was far more common, explain why he made this recommendation.
Find the area under the standard normal curve to the right of z = 1.65. Round to four decimal places.
upon implementing a new clinical care pathway for patients critical hospital performs a hypothesis test to determine
Suppose that a certain college class contains 45 students. Of these, 26 are sophomores, 25 are chemistry majors, and 7 are neither. A student is selected at random from the class.
Explain the overall statistical significance of the model, Explain the statistical significance for each independent variable in the model
a manufacturer produces two types of computer monitors monochrome and color. past sales experience shows that at least
The amount of radioactive element R in grams present t years from now is given by the formula R = 10.9e-0.003t. How much of R is present initially?
Use the list of random digits below to assign 4 men and 2 women to the shark fin treatment. Read the table from left to right, first selecting the 4 men and then the 2 women. Use the numerical labels given in the chart to the names.
a bridge hand thirteen cards is dealt from a standard 52-card deck. let a be the event that the hand contains 4 aces
Use the Internet to find a website that shows an example or application correlation or regression in the area of your interest or in your profession. Discuss how correlation or regression was used and summarize your finding.
the concept of type i and type ii error is critical and will come into play with each and every statistical test you
The 100 filings showed an average preparation time of 90 minutes with a standard deviation of 140 minutes. What is the standard error of the mean?
Find the standard error of mean. Also establish an interval estimate around the sample mean using one standard deviation of the mean.
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