chology class experiment scored the following on an IQ test. 95 107 110 101 122 96 94 104 131 90 111 103 97 100 119 85 108 120 130 88 (a) What is the percentile rank of 96? (b) What is the rank (from th

chology class experiment scored the following on an IQ test. 95 107 110 101 122 96 94 104 131 90 111 103 97 100 119 85 108 120 130 88 (a) What is the percentile rank of 96? (b) What is the rank (from th

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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There is a correlation between the number of hours you study for an Exam and a higher score. The following data was collected from a recent class survey compairing the Number of hours spent preparing for an exam and that person final score. Data Follows: Kyle studied 1 hr, score 65%, Sue studied 4 hrs, 88%, Jim studied 3 hrs, 80%, Paul studied 0 hrs, 63%, Alex studied 5 hrs, 97%, Linda studied 2 hrs, 73%, Mindy studied 4.5 hrs, 90%, Joel studied 1.5 hrs, 72%. DISPLAY THE DATA ON A LINE GRAPH USING THE "X" AXIS FOR THE NUMBER OF HOURS STUDIED, AND USE "Y" AXIS FOR THE SCORES EARNED ON TEST. WHEN COMPLETED, DRAW A FITTED LINE TO SHOW A NEGTIVE OR POSTIVE CORRELATION.
In a study examining the relation of math ability to the belief that math ability was innate, the belief was considered the predictor variable. The researcher hopes to find a correlation between the participants’ math ability and their belief that math ability is innate. The scores for the three participants are shown below. The group that believed that math is NOT innate scored 66, 70, 50. The group that believed that math IS innate scored 7, 4,10. what are the mean and SD for each group?
The 25th and 75th percentile points (without interpolation) are?
FICO scores range in value from 300 to 850, with a higher score indicating a more creditworthy individual. Thedistribution of FICO scores is skewed left with a median score of 723.(a) Do you think the mean FICO score is greater than, less than, or equal to 723? Justify your response.(b) What proportion of individuals have a FICO score above 723?
Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 281 of 800 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the a= 0.1 level of significance. C... Because npo (1-Po) 4 = 10, the sample size is 5% of the population size, and the sample ▼satisfied. the requirements for testing the hypothesis (Round to one decimal place as needed.). Clear all Help me solve this Get more help . H Type here to search a ? 3 AS E 4 View an example O Bi R V 5 T G 6 B a H N 8 S a hp M 9 O P Check answer 12:55 PM ^ 6/18/2022 94°F Mostly sunny
In a public health study, a histogram was plotted showing the number of cigarettes smoked per day by each subject, as shown below. The numbers on top of each bar represent its heights. You may assume that the values are spread uniformly across each interval. What is the third quartile (or the 75 percentile) of the values? (3.5) (1.5) ( 1.5) (0.5) 10 20 40 80 Number of cigarettes between 12 and 13 cigarettes 20 cigarettes O between 36 and 37 cigarettes 60 cigarettes between 22 and 23 cigarettes 4. 3. % per cigarette
You are testing the claim that the proportion of men who own cats is significantly different than the proportion of women who own cats.You sample 80 men, and 75% own cats.You sample 160 women, and 80% own cats.Find the test statistic, rounded to two decimal places.
You are testing the claim that the proportion of men who own cats is smaller than the proportion of women who own cats.You sample 190 men, and 71 own cats.You sample 130 women, and 114 own cats.Find the test statistic, rounded to two decimal places
You are testing the claim that the proportion of men who own cats is significantly different than the proportion of women who own cats. You sample 160 men, and 15% own cats. You sample 120 women, and 65% own cats. Find the test statistic, rounded to two decimal places.
You are testing the claim that the proportion of men who own cats is significantly different than the proportion of women who own cats.You sample 180 men, and 85% own cats.You sample 100 women, and 45% own cats.Find the test statistic, rounded to two decimal places.
The claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.35 and the sample statistics include n =1600 subjects with 576 saying that they smoked cigarette in the past week .Find the value of the test statistics ?
You want to compare differences in prior arrests across ethnicity in your study, you measured ethnicity as white =0 black =1 hispanic=2, and other =3. Prior arrests was recorded as the number of prior arrests. which test would you perform to see if arrests differ across diffrent ethnic categories? A. ANOVA B. T-test