MATH225N (MATH 225N)

MATH 225N Week 4 Statistics Quiz (Version 1) 1. Question: Alice sells boxes of candy at the baseball game and wants to know the mean number of boxes she sells. The numbers for the games so far are ……. 16,14,14,21,15 2. Question: Given the following list of prices (in thousands of dollars) of randomly selected trucks at a car dealership, find the median…… 20,46,19,14,42,26,33 3. Question: Each person in a group shuffles a deck of cards and keeps selecting a card until a queen appears. Fin...

MATH 225N Week 6 Statistics Quiz (Questions & Answers) Summer 2020 Chamberlain 1. Question: A statistics professor recently graded final exams for students in her introductory statistics course. In a review of her grading, she … the mean score out of 100points was a x¯=77, with a margin of error of 10……Construct a confidence interval for the mean score (out of 100 points) on the final exam. 2. Question: A random sample of adults were … whether they prefer reading an e-book over a print...

MATH 225N Week7 Assignment- Conducting a hypothesis test P-Value Approach Determine the p-value for a hypothesis test for the mean (population standard deviation known) Question What is the p-value of a two-tailed one-mean hypothesis test, with a test statistic of z0=−1.73? (Do not round your answer; compute your answer using a value from the table below.) z−1.8−1.7−1.6−1.5−1.4 ....... Make a conclusion and interpret the results of a one-mean hypothesis test (population standard dev...

MATH 225N Week 6 Discussion: Confidence Interval Initial Post Instructions Thinking of the many variables tracked by hospitals and doctors’ offices, confidence intervals could … created for population parameters (such as means or proportions) that were calculated from many of them. Choose a topic of study that is tracked (or you would like to see tracked) from your place of work. Discuss the variable and parameter (mean or proportion) you chose, and explain why you would these to create an ...

MATH 225N Week 7 Assignment- Developing Hypothesis and understanding Possible Conclusion for Proportions Identify the null and alternative hypotheses for an experiment with one population proportion Question Devin is a researcher for a pharmaceutical company testing whether a new prescription pain medication causes patients to develop nausea. The medication would have to be scrapped if more than 6% of patients who take the medication develop nausea on a regular basis. Devin randomly selected 46...