1(en)Given that a die is tossed and has the following data :x 1 2 3 4 5 6P(x) 1/6 k1/61/61/6 1/6Choose... +What is the variance?Choose...Choose...1/62.72.81.641.713.42/62.9173.51.673.3

Answered: Given that a die is tossed and has the…

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 researcher records the crying time (in minutes) of infancy’s given oral administration of sucrose (n=10) prior to a heel prick. The mean cruise my time has j the sucrose aw ground was M=3 (s2 = 9); in the tap water group, it was M=7 (s2=4) min. Calculate the pooled variance for this study. (1 dec place) _______
f (x, y) y g (x) DIRE 135 1 0.05 0.05 0.00 0.10 K NX 0.05 0.10 0.20 0.35 3 0.10 0.35 0.10 0.55 h (y) 0.20 0.50 0.30 1
A Hollywood studio believes that a movie that is considered a drama will draw a larger crowd on average than a movie that is considered a comedy. To test this theory, the studio randomly selects several movies that are classified as dramas and several movies that are classified as comedies and determines the box office revenue for each movie. The results of the survey are as follows. Assume that the population variances are approximately equal. Box Office Revenues (Millions of Dollars) n Drama 10 160 30 Comedy 15 140 10 Copy Data Calculate a 99 % confidence interval for the difference in mean revenue at the box office for drama and comedy movies. Let dramas be Population 1 and comedies be Population 2. Write your answer using interval notation and round the interval endpoints to two decimal places.
1. From the community hospital and clinics around a city , the ages of dentists , nurses and physicians are recorded as shown below . At a = 0.05 , test if the variances are equal. You may assume that the distribution of the ages is normal. (Given that F28 = 4.46) Ages Dentists 29 57 62 44 Nurses 44 23 27 Physicians 39 47 41 58
1. Of all customers purchasing automatic garage-door openers, 57% purchase a chain-driven model. Let X = the number among the next 15 purchasers who select the chain-driven model. a. Calculate P(X > 10). b. Calculate P(8
4. Review the variance function for specific distributions. For Bernoulli, Poisson, Gamma, and Inverse Gaussian, what does the variance function say about our ability to predict the range of possible values? (This may be a little bit challenging; give it your best guess.)
An analysis of variance produces SSbetween = 30, SSwithin = 60, and an F-ratio with dfbetween = 2 and dfwithin 15. For this analysis, what is the F-ratio? a. 30/60 = 0.50 b. 60/30 = 2.00 c. 15/4 = 3.75 d. 4/15 = 0.27
R. 4- For the following data. 1 2 3 4 27 32 29 36 Yt i- Calculate all the coefficients of the sample autocorrelation function and calculate the variance for these estimates. ii- Calculate the first 3 PACF and calculate the variance of these estimates.
Ensure the RaceResults worksheet is active, then use the FREQUENCY function to calculate the frequency distribution of the race results in column D. Place your results in the range G4:G9. Enter a function in cell F22 to calculate the correlation between age (Columns C) and race time (Column D). Enter a function in cell G22 to calculate the covariance between age and race time. Enter a function in cell H22 to calculate the variance of the ages in the data set. Note this is a sample of data not a population. Enter a function in cell 122 to calculate the standard deviation of the ages in the data set.
Use the following returns for X and Y. Year Returns X Y 1 21.9% 26.7% 2 −16.9 −3.9 3 9.9 28.7 4 19.8 −14.8 5 4.9 32.7 Calculate the average returns for X and Y. Note: Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16. Calculate the variances for X and Y. Note: Do not round intermediate calculations and round your answers to 6 decimal places, e.g., .161616. Calculate the standard deviations for X and Y. Note: Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.
Part I A bakery sells homemade bread by the loaf and sales are uniformly distributed between 200 and 600 loaves per day. a. Find the probability of selling 240 loaves on a given day. b. Find the probability of selling between 250 and 260 loaves per day Part II The golf balls produced by TruGolf have a mean distance of 250 meters and a variance of 625 meters. c. How large a sample of TruGolf balls should be taken if they want to estimate with 90% confidence the mean distance to within 8 meters? d A random sample of 40 balls from TruGolf are selected. Find the Bound of Error when the confidence level is 95% for TruGolf
2.Find the variances if the standard deviation are: a.s = 7.3 s2 %3D %3D b.s = 6.9 %3D

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Given that a die is tossed and has the following data : x 1 2 3 4 5 6 P(x) 1/6 k1/6 1/6 1/6 1/6 Choose... + What is the variance? Choose... Choose... 1/6 2.7 2.8 1.64 1.71 3.4 2/6 2.917 3.5 1.67 3.3