For each of the following situations, identify the population of interest, the parameter, and the statistic.a) A medical researcher is interested in exploring the effects of a new medicine on blood pressure.500 males with high blood pressure are randomly selected and given the new drug. After twoweeks, their blood pressure is measured and the average arterial pressure is calculated.b) A study is conducted to determine whether or not the dangerous activity of texting while drivingis a common practice. 1500 16- to 24-year-olds are randomly selected and asked whether or notthey text while driving. Of the 1500 drivers, 12% indicate they text while driving.

From above two questions we have to identify the Population of interest Parameter Statistic (a)…

Answered: a) A medical researcher is interested…

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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It is considered quite common to have feet of unequal length. In a sample of 10 healthy college students the right-foot and left-foot lengths are given (in mm). Length in mm mean ss Left foot (xx) 268 274 258 259 256 256 264 263 269 270 263.7 6.3779132776932 Right foot (yy) 247 281 249 259 231 273 267 264 285 265 262.1 16.3737594949969 d=x−yd=x−y 21 -7 9 0 25 -17 -3 -1 -16 5 1.6 13.9459273226591 (a) Find the test statistic. (b) Test the claim at the 0.05 significance level. Positive critical value: Negative critical value: Is there sufficient data to support the claim?YesNo
b. The average number of tourists who stay for three days in Boracay is 14,100. The researcher claims that the average number of tourists have increased. Ho: H₁: Tail Test type:
Read the following on attendance and grades, and answer the questions. A study revealed that students from a certain local college in Bulacan who attended class 95 to 100% of the time usually received a grade of 1.0 in the class. Students who attended class 80 to 90% of the time usually received a 1.5 or 1.75 in the class. Students who attended class less than 80% of the time usually received a 3 or a 5 or eventually withdrew from the class. Many factors affect a student’s grade in a course. One factor that has considerable control over is attendance. One can increase the opportunities for learning by attending class more often. a. From the information given, comment on the relationship between the variables Answer: b. What type of survey do you think is most appropriately used for the study? Answer: c. Do you think the use a random method for deciding who would be in the sample is appropriate? Why? Answer:
A campus survey asked 750 university students which meal (breakfast, lunch, dinner) they ordered the most often from the school cafeteria. A.) What is the variable? - is it Meal? B.) What kind of variable is it? - is it ordinal? C.) What is the population of this study? Is it descriptive statistics?
The distribution of hemoglobin in grams per deciliter of blood if approximately N(14,1) in women and approximately N(16,1) in men. Use software or Table B to find the answers. A) What percent of women have more hemoglobin than the men's mean hemoglobin? B) What percent of men have less hemoglobin than the women's mean hemoglobin? C) What percent of men have more hemoglobin than the women's mean hemoglobin?
A researcher will choose quantitative research if he wants to obtain detailed information about hundreds of subjects from the target population. a. TRUE b. FALSE
A magazine invited women to visit their site to complete a surgery and 1500 respondents responses were recorded. When asked whether they would rather have more money or more sleep, 88% responded more money and 12% responded more sleep. How do I answer the questions with this information? 1) identify the variable in this study. 2) is the variable quantitative or qualitative? 3) what is the sample in this study? 4) what is the implied population?

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