1. A researcher wishes to see of the way people to obtain information is independent of their educationalbackground. A survey of 401 high school and college graduates yielded the following information. Ata = 0.05, can one conclude that the way people obtain information is independent of their educationalbackground?newspaperother sourcestotalHigh school9051College274331totalStep 1 H.:Step 2 Degrees of freedom:Critical value:DSUNIVELOuIs

Step 1: Null Hypothesis: H0: The way people is independent of their educational background.…

Answered: 1. A researcher wishes to see of the…

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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ReAb. a question can influence eyewitness memory. In the study, college students watched a film of ap automobile accident and then were asked questions about what they saw. One group was asked, "About how fast were the cars going when they smashed into each other?" Another group was asked the same question except the verb was changed to "hit" in- stead of "smashed into." The "smashed into" group reported significantly higher estimates of speed than the "hit" group. Suppose a researcher repeats this study with a sample of today's college students and obtains the following results. Estimated Speed Smashed into Hit n 15 n = 15 M = 40.8 M = 34.0 SS = 510 SS = 414 a. Do the results indicate a significantly higher esti- mated speed for the "smashed into" group? Use a one-tailed test with a = .01. b. Compute the estimated value for Cohen's d to measure the size of the effect. the hypothesis test and the measure of effect size would appear in a research report. nort higher 18. In and a classic
the table below shows the number of books the Jefferson Middle school students readeach month for nine months. Month Sept. Oct. Nov. Dec. Jan. Feb. Mar. Apr. May Number of Books 293 280 266 280 289 279 275 296 271 If the students read only 101 books for the month of June, which measure of central tendency will have the greatest change?A. The mean will have the greatest change.B. The median will have the greatest change.C. All measures will have an equal change.D. The mode will have the greatest change.
2. Compare the 12 water temperatures from Dauphin Island with the 12 water temperatures from Grand Isle. Use the mean, median, mode, and interquartile range in your explanation. Gulf of Mexico Eastern Coast Water Temperatures (°F) Location F M A M J J A St. Petersburg, Florida 62 64 68 74 80 84 86 86 84 78 70 64 Key West, Florida 69 70 75 78 82 85 87 87 86 82 76 72 Dauphin Island, Alabama 51 53 60 70 75 82 84 84 80 72 62 56 Grand Isle, Louisiana 61 61 64 70 77 83 85 85 83 77 70 65
A researcher wants to know if there is an association between feelings of hunger and aggressive behavior (in other words, is being “hangry” a real phenomenon?). He asks participants to track their hunger levels and feelings of anger and aggression over the course of a week. What is the independent variable? A) Hunger levels B) how much they've eaten C) Feelings of aggression D) There is no IV for this type of analysis E) Anger
C8. According to the Pew Research Center (2015), recent immigrants are better educated than earlier immigrants to the United States. The change was attributed to the availability of better education in each region or country of origin. The percentage of immigrants 25 years of age and older who completed at least high school is reported in this table for 1970 to 2013. Write a statement describing the change over time in the percentage who completed at least a high school degree. 1970 1980 1990 2000 2013 Mexico 14 17 26 30 48 Other Central/South America 57 53 60 66 Asia 75 72 75 82 84 48 68 81 87 95 Europe 36 48 52 58 72 Caribbean 81 91 88 85 85 Africa Source: Pew Research Center, Modern Immigration Wave Brings 59 Million to U.S., Driving Population Growth and Change Through 2065, 2015. Retrieved from https://www.pewresearch.org/hispanic/2015/09/28/modern- immigration-wave-brings-59-million-to-u-s-driving-population-growth-and-change-through-2065/ 52
help please answer in text form with proper workings and explanation for each and every part and steps with concept and introduction no AI no copy paste remember answer must be in proper format with all working
The table below shows the number of books the Jefferson Middle school students readeach month for nine months. If the students read only 101 books for the month of June, which measure of central tendency will have the greatest change?A. All measures will have an equal change.B. The median will have the greatest change.C. The mean will have the greatest change.D. The mode will have the greatest change.
This is a follow up question please answer both
which statement is NOT true about the following set of data?
1
i need help with this question
1. A data set has 8 data points. If the data values are written in order from smallest to largest, which value is the median? O A. the 4th value OB. the mean of the 4th and 5th values O C. the 5th value OD. the mean of the 5th and 6th values

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