Use the chart below to answerquestions 1-6 about the ACT's.The ACT is a standardized test used by collegeadmissions offices as a factor in whether anapplicant is or is not admitted to their college.Since so many students take this test each year,the distribution of results are typicallyapproximately normal. The table below showsthe mean and standard deviation for eachsection of within the ACT for all test takers inthe years 2015, 2016, and 2017.StandardSectionMeanDeviationEnglish20.36.8Math20.75.4Reading21.46.5Science20.95.5STEM21.05.2A Which of the sections had the most variance inthe scores?O EnglishO MathReadingO ScienceO STEM

Given: Section Mean Standard deviation English 20.3 6.8 Math 20.7 5.4 Reading 21.4 6.5…

Answered: Which of the sections had the most…

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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Similar questions

Which of the three measurements, mean, median, or mode, is the most influenced by an outlier value that is either much higher or lower than the others in the dataset? Explain how you chose your answer in the space provided below.
A contributor for the local newspaper is writing an article for the weekly fitness section. To prepare for the story, she conducts a study to compare the exercise habits of people who exercise in the morning to the exercise habits of people who work out in the afternoon or evening. She selects three different health centers from which to draw her samples. The 6060 people she sampled who work out in the morning have a mean of 3.33.3 hours of exercise each week. The 4747 people surveyed who exercise in the afternoon or evening have a mean of 3.43.4 hours of exercise each week. Assume that the weekly exercise times have a population standard deviation of 0.40.4 hours for people who exercise in the morning and 0.70.7 hours for people who exercise in the afternoon or evening. Let Population 1 be people who exercise in the morning and Population 2 be people who exercise in the afternoon or evening. Step 1 of 2 : Construct a 99%99% confidence interval for the true difference…
What is the likely media when the mean is 9 the sample variance is 7.31 and the skew is 1.04
One study found a negative correlation between participant’s age and hours of sleep they got (as they got older, they slept less). Which additional fact would lead you to believe that the relationship between age and hours of sleep is one of causation and not correlation? Jim is 63 and sleeps more than he did when he 47. Josie is 40 and sleeps fewer hours than when she was 30. The participants were randomly selected, the sample size was large, and the participants did not know the goal of the study. Jennie sometimes has difficulty sleeping.
Consider the following data: 2, 9, 5, 11, 7, 3. a. Calculate its mean and variance. b. If all the above data was multiplied by 4, what would the new mean and variancebe?
Does the mean represent the center of the data?
32% of TCNJ engineering majors are females. For a group of 50 engineering majors, find the variance for the number of females. Round your answer to the nearest integer.
make up 2 data sets, each with 5 values, that have the same mean and median, but different standard deviations.
A contributor for the local newspaper is writing an article for the weekly fitness section. To prepare for the story, she conducts a study to compare the exercise habits of people who exercise in the morning to the exercise habits of people who work out in the afternoon or evening. She selects three different health centers from which to draw her samples. The 57 people she sampled who work out in the morning have a mean of 4.8 hours of exercise each week. The 56 people surveyed who exercise in the afternoon or evening have a mean of 4.2 hours of exercise each week. Assume that the weekly exercise times have a population standard deviation of 0.8 hours for people who exercise in the morning and 0.3 hours for people who exercise in the afternoon or evening. Let Population 1 be people who exercise in the morning and Population 2 be people who exercise in the afternoon or evening. Step 1 of 2 : Construct a 95% confidence interval for the true difference between the mean amounts…
If all of the students in a class earn the same score on a quiz, what should be said about the variability of the scores?
Kris works for the MESA Air Pollution Study at UW, and studies the correlation be- tween air pollution and the disease atherosclerosis. Nationally, 40% of adults suffer from atherosclerosis. Kris suspects that the proportion of people with atherosclerosis in high- pollution areas is higher. In a random sample of 600 residents of high-pollution areas, he finds that 270 (45%) subjects have atherosclerosis. At the 1% level (α = .01), is this good evidence that people in high-pollution areas are more likely to have atherosclerosis? (a) Which of the following is the Ha ? (research claim or alternate) A. Ha : p ≥ 0.40 B. Ha : pb ≥ 0.40 C. Ha : p > 0.40 D. Ha : p > b 0.40 E. Ha : p > b 0.45 F. Ha : p > 0.45 G. Ha : pb ≥ 0.45 H. Ha : p ≥ 0.45 I. None of these Hint: First read the problem and using my notes (or Hawkes) for 9.1, set up H0 and Ha . Then pick the right Ha from the above list. Dont try to guess the answer from the above list. (b) Which of the…
The Mean and SD came out wrong

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Which of the sections had the most variance in the scores?