You collect a data set of number of microorganisms growing in Petri dishes:89,341, 366, 2, 0,The best measure of central tendency to summarize these data is...MedianModeMeanStandard deviation3, 45Inter-quartile range

Answered: The best measure of central tendency to…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A recent experiment included measuring the weight of a package of raw almonds. This type of data would be considered a: Discrete variable or Continuous variable?
Do male college students spend more time than female college students using a computer? This was one of the questions investigated by the authors of an article. Each student in a random sample of 46 male students at a university in England and each student in a random sample of 38 female students from the same university kept a diary of how he or she spent time over a three-week period. For the sample of males, the mean time spent using a computer per day was 45.7 minutes and the standard deviation was 63.3 minutes. For the sample of females, the mean time spent using a computer was 39.5 minutes and the standard deviation was 57.3 minutes. Is there convincing evidence that the mean time male students at this university spend using a computer is greater than the mean time for female students? Test the appropriate hypotheses using a = 0.05. (Use umales - Hiemales:) n USE SALT Find the test statistic. (Round your answer to one decimal place.) t = Find the df. (Round your answer down to…
What do we assume our Level of Significance to be unless otherwise specified?
The mean for the following data set {1, 2, 3, 1, 3} is: Select one: О а.5 O b. 2 О с.3 O d. 4
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The table below shows the number of state-registered automatic weapons and the murder rate for several states in the U.S. 11.6 8.4 6.7 3.5 2.7 2.7 2.2 0.9 14.1 11.3 9.9 6.8 6.2 6.3 5.8 I = thousands of automatic weapons y = murders per 100,000 residents Keep in mind, the data in the table do not necessarily imply a direct causal link between the two variables. (In fact, can you think of any reasons why these variables may not be directly related to each other?) Also, the purpose of this question is not to make a political statement about guns or gun control. It's only to illustrate that data such as these sometimes have mathematical relationships that can be modeled with linear equations. Those relationships should always be questioned and examined carefully. With that said, these data can be modeled by the equation y = 0.87z + 3.95. Use this equation to answer the following; A) If this model is oconsistent, how many murders per 100,000 residents can be expected in a state with 8.7…
A researcher has found a strong relationship between level of education and income and concludes that “higher levels of education cause higher income.” What error has been made?
What is the difference between multivariate data set and bivariate data?
Comment on one aspect of the comparison of data from the twodatasets that can be seen more easily on the histograms than onthe boxplots.
Which of the following is a characteristic of quantitative data? A It focuses on subjective interpretations and opinions B It is collected through interviews and focus groups. C It can be easily represented using graphs and charts D) All of the above
The study sorted PIR data into three categories: Use the graphs to estimate the following information from the study. You may wish to record your responses for use in later questions. Part A: The total number of obese men is about million. Part B: The total number of obese women is about million. Part C: The number of obese men with PIR<130% is about million. Part D: The number of obese women with PIR<130% is about million.
Part 2. Complete the following statements. A) The cumulative enrolment is the enrolment of the intervals smaller than the interval in question or equal to the latter. The graph of cumulative enrolment is represented by a function in B) The average, median and mode are three measures of of the C) The term refers to any data that deviates disproportionately from others. D) When the residual values are zero, then the correlation is called

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