* The table shows a frequency distribution ofMathematic session marks for 120students in the second stage at engineeringfaculty. Find the Quartiles of thedistribution, then 30 students have marksequal to 65 or lower? Choose either True or: FalseMark:30-3940-4950-5960-6970-7980-8990-100Number ofStudents13112143329False OTrue O

Answered: Image /qna-images/answer/ee245f20-a62a-4c3d-865a-44c47b58d79f.jpg

Answered: * The table shows a frequency…

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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Choose the best statement to summarize the association shown between hat size and IQ in the scatterplot below. Hat Size O The scatterplot does not show a trend that would indicate an association between hat size and IQ scores. O As hat size increases, IQ scores tend to decrease. O As hat size increases, IQ scores tend to increase. Hat size causes IQ to increase.
What is the median?
6
3
Team A: 6,6,7,7,6,5,6,5,4,5 Team B: 2,2,3,8,9,9,9,9,10,10 a. Compute the mean number of shots made for each team b. Compute the standard deviation for each team c. Compute a Z-score for the individual from team A that made 4 shots d. Compute a Z-score for the individual from team B who made 10 shots e. Using non-statistical language, write several sentences describing the difference in the free-throw shooting abilities between the two teams
a. Use a = 0.10 to test for a statistically significantly difference between the population means for first- and fourth-round scores. What is the p-value? t-value (to 3 decimals) Degrees of freedom p-value is greater than 0.20 What is your conclusion? There is no significant difference between the mean scores for the first and final rounds. b. What is the point estimate of the difference between the two population means? (to 2 decimals) For which round is the population mean score lower? First round c. What is the margin of error for a 90% confidence interval estimate for the difference between the population means? (to 3 decimals) Could this confidence interval have been used to test the hypothesis in part (a)? Yes Explain. Use the point of the difference between the two population means and add and subtract this MOE. If zero is in the interval the difference is not statistically significant. If zero is not in the interval the difference is statistically significant.
Español A coin-operated coffee machine made by BIG Corporation was designed to discharge a mean of 7.2 ounces of coffee per cup. BIG has good reason to believe that the mean amount of coffee dispensed by the machine, u, is greater than 7.2 ounces, and plans to do a statistical test of the claim that the machine is working as designed. Technicians gather a random sample of fill amounts and find that the mean of the sample is 7.6 ounces and that the standard deviation is 0.5 ounces. Based on this information, complete the parts below. (a) What are the null hypothesis H. and the alternative hypothesis H, that should be used for the test? Ho :0 O
Describe a situation in your real life that repeated sample t-test is better than independent t-test
Plzzz explain
z Scores LeBron James, one of the most successful basketball players of all time, has a height of 6 feet 8 inches, or 203 cm. Based on statistics from Data Set 1 “Body Data” in Appendix B, his height converts to the z score of 4.07. How many standard deviations is his height above the mean?
Español Over the past several months, customers at Stymie's department store have been asked to fill out customer satisfaction surveys. In the surveys, the customers rate their shopping experience on a scale of 0 to 100. Here are 24 recent ratings. 14, 16, 18, 25, 27, 34, 37, 39, 41, 45, 47, 50, 51, 53, 53, 53, 61, 61, 67, 73, 77, 83, 85, 86 圖 Send data to calculator Aa Frequency 8- 6- 5 5 4- 3 3 2- 20 Customer satisfaction rating 40 60 80 100 O Mean (a) Which measures of central tendency do O Median not exist for this data set? Choose all that O Mode apply. O None of these measures I Mean (b) Suppose that the measurement 86 (the largest measurement in the data set) were replaced by 97. Which measures of central tendency would be affected by the change? Choose all that apply. O Median O Mode O None of these measures (c) Suppose that, starting with the original data set, the largest measurement were O Mean O Median removed. Which measures of central O Mode tendency would be changed from…

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