Consider the following frequency table of observations on the random variable X.Values0 123 4Obs. Val. 24 30 31 11 4Based on these 100 observations, is a Poisson distribution with a mean 1.2 an appropriate model? Perform a goodness-of-fitprocedure with a = 0.05.(a) Calculate the test statistic x. Round your answer to two decimal places (e.g. 98.76).i 7.01(b) Is the Poisson distribution with a mean of 1.2 an appropriate model?Yes. V

The provided information is values observed values Expected values (O-E)2E 0 24 20 0.8 1 30…

Answered: Consider the following frequency table…

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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Given in the table are the BMI statistics for random samples of men and women. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.01 significance level for both parts. a. The test statistic, t, is (Round to two decimal places as needed.) b. The P-value is (Round to three decimal places as needed.) c. Construct a confidence interval suitable for testing the claim that males and females have the same mean BMI. less than mu 1 minus mu 2l ess than (Round to three decimal places as needed.)
Suppose that the weight of seedless watermelons is normally distributed with mean 6.1 kg. and standard deviation 1.5 kg. Let X be the weight of a randomly selected seedless watermelon. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N( kg. b. What is the median seedless watermelon weight? c. What is the Z-score for a seedless watermelon weighing 6.6 kg? d. What is the probability that a randomly selected watermelon will weigh more than 6.5 kg? e. What is the probability that a randomly selected seedless watermelon will weigh between 6.7 and 7.7 kg? kg. f. The 80th percentile for the weight of seedless watermelons is
A random sample of 10 subjects have weights with a standard deviation of 13.0649 kg. What is the variance of their weights? Be sure to include the appropriate units with the result. ..... The variance of the sample data is (Round to four decimal places as needed.) MacBook DD 80 000 000 F9 F10 esc F5 F7 F8 F2 F3 F4 F6 F1 & #3 7 8 9
Let x be a random variable that represents the commute time of teachers in a large urban area. If x is normally distributed with a mean of 49 minutes and a standard deviation of 5.2 minutes, find the commute time which is at the top of the bottom 10%. A. 55.66 minutes B. 42.34 minutes C. 42.63 minutes D. 41.38 minutes
This assignment is worth 1 points. The extra point will be added to your overall course grade. For example: if you receive an 88% in the course you can receive up to 1 point giving you a new score of 89%. The following rubric will be used. 0.25 point for drawing the normal distribution curve with the mean value labeled on the curve and the appropriate area shaded. 0.25 point for determining the value of the standard deviation of the sample mean. 0.5 point for finding the correct probability. All work must be shown in order to receive any credit. Please upload your completed assignment here. The length of time taken on the SAT for a group of students is normally distributed with a mean of 2.5 hours and a standard deviation of 0.25 hours. A sample size of n = 60 is drawn randomly from the population. Find the probability that the sample mean is between two hours and three hours.
Calculate the standard deviation and variance of the data shown, to two decimal places 8.9 18.5 9.7 20 26.2 10.6 Standard deviation: Variance: Enter an inteper or decimal number (more..] Check Answer ype here to search Esc C F5 F1 F2 F3 F4 F6 F7 F8 F9 F10 C@ %23 24 * 3 4. 7 8 9. W T Y A
6.4.17-T An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots weighing between 140 Ib and 201 Ib. The new population of pilots has normally distributed weights with a mean of 148 Ib and a standard deviation of 28.5 lb. Click here to view page 1 of the standard normal distribution. Click here to view page 2 of the standard normal distribution. a. If a pilot is randomly selected, find the probability that his weight is between 140 Ib and 201 Ib. The probability is approximately (Round to four decimal places as needed.) Enter your answer in the answer box and then click Check Answer. Clear All Check Answer 2 parts remaining MacBook Air 4). F7 F9 esc F4 F1 F2 & * @ 2# delete %3D 2 4 5 6 7 8 9 1 P Q W E R Y tab enter H K return A S D caps lock .. .-
The probability that a radish seed will germinate is 0.7. A gardener plants seeds in batches of 9. Find the standard deviation for the binomial random variable X, the number of seeds germinating in each batch Round to three decimals A. 1.375. OB. 1.296 O C. 1.281 OD. 1.358
An independent random sample is selected from an approximately normal population with an unknown standard deviation. Find the p-value for the given sample size and test statistic. a. n = 11, T = 1.91 b. n = 17, T = -3.45 c. n = 26, T = 2.485 d. n = 18, T = 0.5
The amount of syrup that people put on their pancakes is normally distributed with mean 59 mL and standard deviation 7 mL. Suppose that 15 randomly selected people are observed pouring syrup on their pancakes. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N( b. What is the distribution of æ? a - N( c. If a single randomly selected individual is observed, find the probability that this person consumes is between 60.1 mL and 61.8 mL. d. For the group of 15 pancake eaters, find the probability that the average amount of syrup is between 60.1 mL and 61.8 mL. e. For part d), is the assumption that the distribution is normal necessary? O Nol NoO Yes

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