The kurtosis of a probability distribution is 2, per Microsoft
Excel. Which of the following characterizations is correct?
Group of answer choices
The tails of the distribution are lighter than the normal distribution
The tails of the distribution are similar to that of the normal distribution
The tails of the distribution are heavier than the normal distribution
The distribution is platykurtic
Given
The kurtosis of distribution is 2
Hence we say that
The tails of the distribution are heavier then normal distribution.
Becouse when kurtosis is greater than zero then distribution have heavier tails.
The kurtosis of a probability distribution is 2, per Microsoft Excel. Which of the following characterizations...
Which of the following is incorrect about the shape of distributions? a. Kurtosis is a measure of whether the data are heavy or light-tailed relative to a normal distribution. b. A distribution that is more peaked than normal is leptokurtic. c. Skewness is a measure of the lack of symmetry for a data set. d. All of the above are correct.
Binomial Distribution Use technology (calculator, Microsoft Excel, or Google Sheets) to find the following binomial probabilities. Round to the nearest thousandth. According to the Center for Disease Control, 15% of US adults are estimated to have chronic kidney disease. A random sample of 150 U.S adults are selected. What is the probability that: 1. Exactly 35 have chronic kidney disease? P(r = 35) = 0.002 2. No more than 15 have chronic kidney disease? P(r <$15) = 0.049 3. Thirty...
Microsoft Excel Question Which of the following 4 options is the correct answer for this question ? How does the SUM function handle cells that do not contain a number? Excel treats text cell values as 1. If there are no numbers in the SUM range, Excel displays an error message. Excel doesn't let you enter a SUM function if the range contains any nonnumerical values. Excel displays an error if any of the cells in the SUM range contain...
Which of the following is a correct description of the t-distribution? Select one: a. It is the best distribution to use with small sample sizes. b. There are fewer scores in the tails than in a normal distribution. c. It is equal to a normal distribution with infinite degrees of freedom. d. It is the best distribution to use when the population might be right or left skewed.
Which of the following statements is false? If the normal distribution of wages of a group of workers has a mean of μ = 12.00 dollars/hour, then the proportion of workers who earn more than $11.60 is greater than . . . (draw a diagram to help you!) Group of answer choices: A) the proportion earning more than the median wage. B) 50%. C) the proportion earning less than $11.60 per hour. D) the proportion earning less than $12.80/hour.
Which of the following is a term that can be used to describe why every office is expected to have access to Microsoft Office (Word, Excel, PowerPoint, etc.)? Group of answer choices Increasing Returns to Scale Decreasing Returns to Scale Constant Returns to Scale Network Economies of Scale
Which one of the following has a heavier tail than another one? (a) Normal Distribution. (b) t-Distribution.
Which of the following is NOT a property of the t-distribution? a. it is symmetric b. its a shape size grows large, it gradually approaches the normal distribution c. its shape (spread) is determined by the degrees of of freedom d. it has fatter tails than the normal distribution e. all the above are properties of the t distribution
compute p(x) using the binomial probability formula. then determine whether the normal distribution can be used to estimate this probability. if so, p(x) using the normal distribution and compare the result with the exact probability. n=78, p= 0.83, and x=60 for n= 78, p= 0.83, and x=60, find P(x) using the binomial probability distribution. P(x) _. (round to four decimal places as needed.) can the normal distribution be used to approximate this probability? A. no, the normal distribution cannot be...
Using Excel - normal probabilities Consider the random variable x that follows a normal distribution, with a mean of μ = 54 and a standard deviation of σ = 4. You will select some of your answers to the questions that follow in this sample Excel spreadsheet: A B 1 P(x < 50.5) 2 P(49 < x < 51) In cell B1 of the sample spreadsheet, select the correct Excel formula for computing the probability that x is less than...