A machine drops balls randomly into 5 bins labeled A, B, C, D, and E. If the machine is workingcorrectly, all bins should end up with the same number of balls. Is there evidence that the machineis not working correctly?ObservedExpectedFrequencyBin LabelFrequencyA11В1721D1224Report all answers accurate to three decimal places. But retain unrounded numbers for futurecalculations.What is the chi-square test-statistic for this data? (Report answer accurate to three decimal places,and remember to use the unrounded Pearson residuals in your calculations.)What are the degrees of freedom for this test?d.f.=What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value = The p-value is...O less than (or equal to) aO greater than aThis test statistic leads to a decision to...O reject the nullO accept the nullO fail to reject the nullO accept the alternativeAs such, the final conclusion is that...There is sufficient evidence to warrant rejection of the claim that all 5 bins are equally likely tobe selected.There is not sufficient evidence to warrant rejection of the claim that all 5 bins are equallylikely to be selected.O The sample data support the claim that all 5 bins are equally likely to be selected.There is not sufficient sample evidence to support the claim that all 5 bins are equally likely tobe selected.

Solution According to the guidelines we solve only three suparts To find the chi square test…

Answered: A machine drops balls randomly into 5…

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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Completed 0 of 4 Questions ( 1 4 > O Save V Finish 2 3 Yoonie is a personnel manager in a large corporation. Each month she must review 25 of the employees. From past experience, she has found that the reviews take her approximately 2 hours each to do with a population standard deviation of 1.2 hours. Let X be the random variable representing the time it takes her to complete one review. Assume X is normally distributed. Let X be the random variable representing the mean time to complete the 25 reviews. Assume that the 25 reviews represent a random set of reviews. a. X is normally distributed with a mean of and a standard deviation of 2 1.2 and a standard error of the mean Round your answer to 2 decimal places. b. X is normally distributed with a mean of Enter a number Enter a number Submit (2 attempts remaining) Us O 9I 11
U You “clock" 27 of Caruthers' fastballs, obtaining a mean of 118.7 mph, with a standard deviation of 2.2 mph. To a 1% level of significance, can it be asserted that the average Caruthers fastball (in general) is over 115 mph? JAssume that the “speeds" of all of Caruthers' fastballs are normally distributed.]
listening to music that the runner selected as motivational. On a different day, each participant ran with no music playing. For purposes of this exercise, assume that it is reasonable to regard these triathletes as representative of the population of experienced triathletes. Only summary quantities were given in the paper, but the data in the table below are consistent with the means and standard deviations given in the раper. Coonorio 4
Use the appropriate formula to do this problem by hand. You should ONLY use Stat Key to find the theoretical distribution value for z or t (depending on the situation you either use Z or T so figure out which is correct). Round final endpoints to the nearest whole dollar. In a sample of 63 people in a city who lost their job as a result of the COVID 19 pandemic the mean checking/savings account balances when their jobs were lost was $4,389 with a standard deviation of $3,970. Construct and INTERPRET the 90% confidence interval estimate for the population mean checking/savings account balance for residents in this city who lost their job due to COVID 19.
Mean median and std dev. As well as the standard deviation of the white bread
U.0 of 15 pts 2.5.49 Question Help A certain brand of automobile tire has a mean life span of 36,000 miles and a standard deviation of 2,100 miles (Assume the life spans of the tires have a bell-shaped distributon) (a) The life spans of three randomly selected tires are 35,000 miles, 38,000 milos, and 31,000 miles. Find the z-score that corresponds to each life span For the lfe span of 35,000 mies, 2-score is (Round to the nearest hundredth as needed)
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AA A www-awn.aleks.com Honey Blonde Lace F... Pf iCampus Login Bb Week 11 – MAT3004... A ALEKS - Shasia Gibb... O RANDOM VARIABLES AND DISTRIBUTIONS Shasia V Central limit theorem: Sample mean A study of college football games shows that the number of holding penalties assessed has a mean of 2.3 penalties per game and a standard deviation of 0.9 penalties per game. What is the probability that, for a sample of 40 college games to be played next week, the mean number of holding penalties will be 2.35 penalties per game or more? Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places. Explanation Check O 2021 MCGraw-HIII Education. All Rights Reserved. Terms of Use | Privacy | Accessibility
esc A chain of restaurants has historically had a mean wait time of 9 minutes for its customers. Recently, the restaurant added several very popular dishes back to their menu. Due to this, the manager suspects the wait time, μ, has increased. He takes a random sample of 44 customers. The mean wait time for the sample is 9.6 minutes. Assume the population standard deviation for the wait times is known to be 3.3 minutes. Can the manager conclude that the mean wait time is now greater than 9 minutes? Perform a hypothesis test, using the 0.05 level of significance. (a) State the null hypothesis Ho and the alternative hypothesis H₁. Ho: D H₁: 0 (b) Perform a Z-test and find the p-value. Here is some information to help you with your Z-test. • The value of the test statistic is given by Standard Normal Distribution Step 1: Select one-tailed or two-tailed.. O One-tailed O Two-tailed Explanation H Check OO MacBook Pro Español ? CÙ D 19 As Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of…
The random sample shown below was selected from a normal distribution. 8, 5, 3, 10, 4, 6 O Complete parts a and b. a. Construct a 95% confidence interval for the population mean u. (OD (Round to two decimal places as needed.)

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