Private Four-Year College Enrollment A random sample of enrollments in Pennsylvania's private four-year colleges is listed here. Check for normality. (6–2) 1350 | 1886 1743 1290 1767 2067 | 1118 3980 1773 4605 1445 3883 1486 980 1217 3587

Private Four-Year College Enrollment A random sample of enrollments in Pennsylvania's private four-year colleges is listed here. Check for normality. (6–2) 1350 | 1886 1743 1290 1767 2067 | 1118 3980 1773 4605 1445 3883 1486 980 1217 3587

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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100% 80% 700-800 O 600-690 O 500-590 60% O 400-490 40% 300-390 O 200-290 20% 0% Results from a third random sample are given in the table. Match the following three stacked bar graphs (percent on the vertical axis) with the corresponding samples. Sample Stacked bar Graph Sample 1 Sample 2 Sample 3 Percent
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Hazardous waste: Following is a list of the number of hazardous waste sites in a sample of states of the United States in a recent year. The list has been sorted into numerical order. 5 6 11 13 14 14 14 15 16 19 20 21 25 26 29 30 32 32 32 38 40 48 49 49 52 67 86 97 116 Source: U.S. Environmental Protection Agency Send data to Excel Part 1 of 2 th (a) What is the 24 percentile? th The 24 percentile is Part 2 of 2 th (b) What is the 88 percentile? th The 88 percentile is Save For Later Submit Assign Check Apswer!
Boats (tens of thousands) Manatees69 5467 3964 3571 4871 4472 6076 5482 6682 8086 7891 7993 9592 7293 7199 8198 93102 7294 9297 9592 8190 8690 8088 7187 68 Use the accompanying paired data consisting of registered boats (tens of thousands) and manatee fatalities from boat encounters. Let x represent the number of registered boats and let y represent the corresponding number of manatee deaths. Use the given number of registered boats and the given confidence level to construct a prediction interval estimate of manatee deaths. Use x=81(for 810,000registered boats) with a 99%confidence level. Use the chart above ___manatees<y< ___manatee
A 2012 study of freely forming groups in bars all over Europe examined the natural behavior of groups. The researchers recorded the group size (number of individuals in the group) of all 501 groups in the study that were naturally laughing. The findings were displayed in the figure below. 300 Number of groups 250 200 O 52 O 2.7 0 2 150 3.5 4 100 50 0 254 2 Enter your answer here The median laughter group size in this study is 168 3 The mean laughter group size in this study is O 100.2 Enter your answer here 52 4 5 Laughter group size 21 6 6 Can we conclude from these findings that, in European bars in 2012, smaller groups were more likely than larger groups to be naturally laughing? Explain your statistical reasoning in one sentence.
Blood pressure: A blood pressure measurement consists of two numbers: the systolic pressure, which is the maximum pressure taken when the heart is contracting, and the diastolic pressure, which is the minimum pressure taken at the beginning of the heartbeat. Blood pressures were measured, in millimeters of mercury, for a sample of 7 adults. The following table presents the results. Systolic 116 107 105 113 118 133 110 Diastolic 70 71 66 77 88 91 74 Construct a 99% confidence interval for the slope. Round the answers to at least four decimal places.
2 3 4 P 5 D 6 7 8 The data shown here were collected via a phone survey in 2010 of 625 cell phones users of age 12 to 17 by the Pew Research Foundation. If we select a person at random from this sample: type your answer..... Number of text messages sent or received on a typical day 0 1-10 11-20 21-50 type your answer.... 51-100 101+ type your answer... % of teen cell phone users Round your answers to the nearest hundredth, O.XX. a. What is the probability that the person responded that s/he texted more than 100 times per day? c. What is the probability that the person did not respond that she never texts? 2% 22% 11% 18% 18% b. What is the probability that the person responded that s/he texted between 21 and 100 times on a typical day? ?
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Presidential Inaugural Addresses Ever wonder how many words are in a typical inaugural address? The following data represent the lengths of all the inaugural addresses (measured in word count) for all presidents up to Barack Obama. 1425 1125 1128 5433 2242 2283 3319 2015 3217 135 4467 2308 2906 2821 1172 3967 1337 1883 1668 2406 2217 2480 1807 3634 3838 698 985 559 2978 3318 1355 Source: infoplease.com 1802 1340 1526 2158 4776 1681 4059 996 4388 3801 1087 2446 2130 1507 2463 2449 2170 2546 1729 8445 1571 209 1437 2073 1175
Last school year, the student body of a local university consisted of 30% freshmen, 24% sophomores, 26% juniors, and 20% seniors. A sample of 400 students taken from this year's student body showed the following number of students in each classification. Freshmen 113 Sophomores 98 Juniors 115 Seniors 74 We are interested in determining whether or not there has been a significant change in the classifications between the last school year and this school year. The calculated value for the test statistic equals Select one: a. .54. b. .65. c. 2.063. d. 2.664.
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39 psychology students took a standardized test. The scores are summarized in the two tables below. Classes Frequency Relative Frequency 140 - 149 13 150 - 159 11 160 - 169 15 Classes Cumulative Frequency Cumulative Relative Frequency 140 - 149 13 150 - 159 160 - 169 What are the missing values?