A researcher claims that the number of homicide crimes by season isuniformly distributed. To test this claim, you randomly select 1,191homicides from a recent year and record the season when eachhappened. The table shows the results. At a = 0.05, test theresearcher's claim.SeasonFrequency, fSpring304Summer314Fall293Winter280x2 = (Round to three decimal places as needed.)Determine the P-value.P-value = (Round to three decimal places as needed.)Decide whether to reject or fail to reject the null hypothesis and interpret the decision in the context of theoriginal claim.

Answered: Image /qna-images/answer/40f8f55b-d109-4e38-a009-b6609d85b772.jpg

Answered: Frequency, f A researcher claims that…

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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Solve #3 with data shown.
Government agencies keep data about the income distribution of the population. The Garcia family and Wood family live in a county with 6000 families. The Garcia family's income is at the 38 percentile. The Wood family's income is at the 73 th percentile. (If necessary, consult a list of formulas.) (a) Which of the following must be true about the Garcia family's and the Wood family's incomes? Both the Garcia family and the Wood family earn more than the median income. Both the Garcia family and the Wood family earn less than the median income. O The Wood family earns more than the Garcia family. O The Garcia family earns more than the Wood family. (b) Which of the following must be true about the Garcia family's income? O About 38% of the families in their county earn less than the Garcia family. O The Garcia family earns about 38% of the highest income in their county. O The Garcia family's income is in the top half of incomes in their county. O The Garcia family earns $38,000.
hat(1) Read the Z table AND make a sketch. P(01.84) P(Z -1.84 = = =
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One hundred students in a statistics course kept track of the time they spent on social media over the weekend. Each student recorded his or her time rounded to the nearest minute, so each observation is a whole number. The data are presented in the form of a frequency histogram. 26 25- 20 20- 16 15 14 12 10- 120 150 I80 210 30 Minutes on social media Each interval on the histogram contains the left endpoint, except for the last bar, which contains both the left and right endpoints. Give the lower and upper bound for the median number of minutes spent on social media over the weekend by the students enrolled in the class. The lower bound is the largest number that is less than or equal to the median, and the upper bound is the smallest number that is greater than or equal to the median. lower bound = 60 upper bound = 85 Kouanbasg
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