Math 40 Lab 2: Descriptive Statistics Notes You are to complete the following work in Excel. These instructions are for my version of Excel on a PC. Depending on your version of Excel or if you’re using a MAC, certain aspects may very slightly. Once completed, you are required to upload your Excel file into […]
Define a survey with 10 questions about a presidential race. Give an example of “poor wording” when designing a survey about a presidential race.
Applied Statistics to Social Science 1) What type of Variable? Categorical or Numerical. If numerical, is it discrete or continuous? Types of diseases Ticket Price ($) Freshmen Marriage Music Beats San Francisco (City) Wage Rate ($/hour) Amount of Sugar in a cup of coffee (grams) Weight (pounds) Social Class (Low Income, Middle Income, High Income) […]
Construct a probability distribution for your net win (X) in the series. Calculate your expected net win (E(X)) and the standard deviation of X.
One Entry Level Statistics Task Problem: Suppose that Boston Celtics and Miami Heat (two American NBA teams) are scheduled to play a best of three (3) series. The winner of the series will be the first team that wins two of the three games. The probability that Boston Celtics wins a game in their home […]
What’s the evidence that there is an effect of time on MADRS? What’s the evidence that there are differences of MADRS across treatment conditions?
Statistics Question Read and answer Lam, Raymond W., et al. “Efficacy of bright light treatment, fluoxetine, and the combination in patients with nonseasonal major depressive disorder: a randomized clinical trial.” JAMA psychiatry 73.1 (2016): 56-63. What type of ANOVA did the authors use? What’s the evidence that there is an effect of time on MADRS? […]
Draw a histogram, with frequency polygon drawn; (d) a frequency distribution graph (ogive); (e) describe the general shape of the frequency distribution polygon; (f) describe the general shape of the ogive.
Statistics question Part 1 (15 Points) For each of the following 5 problems: (a) find the standard deviation; (b) make a Cumulative frequency table; (c) draw a histogram, with frequency polygon drawn; (d) a frequency distribution graph (ogive); (e) describe the general shape of the frequency distribution polygon; (f) describe the general shape of the […]
Make a Cumulative Frequency Table; (b) draw a histogram, with frequency polygon drawn; (c) a frequency distribution graph (ogive).
Statistics Question Part 1 (15 Points) For each of the following 5 problems: (a) find the standard deviation; (b) make a Cumulative frequency table; (c) draw a histogram, with frequency polygon drawn; (d) a frequency distribution graph (ogive); (e) describe the general shape of the frequency distribution polygon; (f) describe the general shape of the […]
Use the information below to find the probability that it was drawn from the first jar. Also determine the cumulative distribution function .
Statistics Assignment Suppose we have two jars. The first jar contains 4 white and 6 black marbles while the second one contains 4 white and 3 black marbles. One marble is drawn at random from one of the jars, and it is found to be black. Find the probability that it was drawn from the […]
If the reliability of a single wire is 0.15, what is a minimal number of wires counted from 70 a cable must have in order to maintain the reliability of the cable (and thus of the system) to at least 0.98?
ASSIGNMENT 1 Explain in Example 5.8 (Chapter I, pages 45-46) of the Lecture Notes (a) how A was obtained and (b) what went wrong with the Poisson approximation. (5 pts) Problem #2 is computational, and it should be rendered using the R-programming (no other language or tool). Provide not only with an answer, but also […]
Write out the correct formula, with specific numbers substituted, to find the probability that there is at most one working battery among the four sampled batteries.
Stat 311 Quiz 2 You only need to summarize answers in sentences where specified. Any probabilities or quantiles can be found using R. When you use R, be sure to include the code and output. All final numerical answers should be accurate to two decimal places (nearest hundredth); however, probabilities should be reported to four […]
Discuss the distribution and identify characteristics of the distribution (e.g., is it a normal or skewed distribution – be sure to discus the why of your decision) in one paragraph.
ASSIGNMENT Using the data provided, calculate the following descriptive statistics: (You may use EXCEL to complete this work. Show all formulas and work in your answer). 1) mean, median, and mode 2) Range, Variance, and Standard Deviation 3) Calculate standard scores for each individual (z and t scores) Discuss the distribution and identify characteristics of […]