nd the minimum sample size n needed to estimate u for the given values of c, o, and E. c= 0.90, o = 9.2, and E=2 ssume that a preliminary sample has at least 30 members. (Round up to the nearest whole number.)
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- Suppose a survey conducted in 2012 asked a group of adults from a certain country whether they drink seltzer water. Of the 3,062 people who responded, 22.8% said they drink seltzer water. Complete parts a through d. a. Identify the sample. What is the sample? A. The group of adults in the particular country who did not respond to the survey B. The 22.8% who reported they drink seltzer water C. The 3,062 people who responded D. All adults in the particular country b. Identify the population. What is the population? A. All of the adults in the world B. The 22.8% of respondents in the survey who reported they drink seltzer water C. All of the adults in the particular country D. The 3,062 people who responded to the survey2. Review Ethan's work below. What mistakes did Ethan make? Sample Student Work: Ethan 3x=y 4x ty = 70 3x+y=0 4x+y=20 7x + 2y = 70 x=53 7+5 = 35 351-2y = 70 2y = 35 X=6 = 17-5- must be a whole number 7x6 = 42 42+2y = 70 2y = 28 y = 14When the data in an investigation are partial and are used to make generalizations about the whole: Select one: A. the whole is called a population. B. All of these answers are correct. C. a particular value of the population is called a parameter. D. the subset is called a sample.
- Which of the following is the closest estimate of r for the following scatterplot? a. .4 b. 0 c. -.9. d. -.4elearn.squ.edu.om YSTEM (ACADEMIC) SS STATISTICS I- Spring21 Time left The appropriate Interval width for a random sample of 100 observations that fall between 50 and 250 Is O A. 10 O B. 15 O C. 20 O D. 25 GE NEXTWhich of the following provides an estimate of the effect the variables of interest have on one another regardless of sample size? a) power b) alpha c) effect size d) p value
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