Show transcribed image text uncertainty hapter 4 Estimating with the mean, and a 95% confidence mean (in no particular order). 112 ways 20. The following shows error bars in means with standard (2002) of Daborm et al. graph. The data are from who showed that e expression of the gene Cypoel in DDT. Expression levels the gene (relative to a of stant strains standard) measured in 12 which Drosophila and susceptible strains. 6 graphical method is 1.0 Data a. Which of the error bars indicates the 0.0 dard deviation? which error bar indicates the standard of the mean -0,1 c. which bar a 95% confi interval for the mean? 1.5 d. Estimate by eye the smallest plausible susceptible for the mean activity time) of male Strains ral sandpipers. Using this smallest plausi value, calculate approximately the maxim 1.0 plausible number of hours (out of 24 hourt that males spend inactive or asleep. 22. How long do you hug somebody? Nagy (201 measured the duration of spontaneous embrace 0.0 at the 2008 Summer Olympic Games in Beijnu China. The data are the durations of hugs, in seconds, of athletes immediately after compe -0.1 ing in the finals of an event. Hugs were either with their coach, a supporter (e.g., a team mem- 1.5 ber), or a competitor. Descriptive statistics cal Susceptible culated from the data are in the following table. Strains n refers to the sample size. 21. Is sleep necessary? To investigate, Lesku et al. Standard (2012) measured the activity patterns of breed- Relationship Mean deviation ing pectoral sandpipers (Calidris melanotos) Coach 3.77 3.96 in the high Arctic in summer, when the sun Supporter 3.16 75 2.76 never sets. The accompanying figure shows the Competitor 1.81 1.13 observed percent time that individual males were awake and active in a 2008 field study. The a. According to the values in the table, which data are on the left. To the right of the data are relationship group gets the longest hug. the sample mean (filled circle) and error bars for the standard deviation, the standard error of average, and which gets the briefest huE
uncertainty hapter 4 Estimating with the mean, and a 95% confidence mean (in no particular order). 112 ways 20. The following shows error bars in means with standard (2002) of Daborm et al. graph. The data are from who showed that e expression of the gene Cypoel in DDT. Expression levels the gene (relative to a of stant strains standard) measured in 12 which Drosophila and susceptible strains. 6 graphical method is 1.0 Data a. Which of the error bars indicates the 0.0 dard deviation? which error bar indicates the standard of the mean -0,1 c. which bar a 95% confi interval for the mean? 1.5 d. Estimate by eye the smallest plausible susceptible for the mean activity time) of male Strains ral sandpipers. Using this smallest plausi value, calculate approximately the maxim 1.0 plausible number of hours (out of 24 hourt that males spend inactive or asleep. 22. How long do you hug somebody? Nagy (201 measured the duration of spontaneous embrace 0.0 at the 2008 Summer Olympic Games in Beijnu China. The data are the durations of hugs, in seconds, of athletes immediately after compe -0.1 ing in the finals of an event. Hugs were either with their coach, a supporter (e.g., a team mem- 1.5 ber), or a competitor. Descriptive statistics cal Susceptible culated from the data are in the following table. Strains n refers to the sample size. 21. Is sleep necessary? To investigate, Lesku et al. Standard (2012) measured the activity patterns of breed- Relationship Mean deviation ing pectoral sandpipers (Calidris melanotos) Coach 3.77 3.96 in the high Arctic in summer, when the sun Supporter 3.16 75 2.76 never sets. The accompanying figure shows the Competitor 1.81 1.13 observed percent time that individual males were awake and active in a 2008 field study. The a. According to the values in the table, which data are on the left. To the right of the data are relationship group gets the longest hug. the sample mean (filled circle) and error bars for the standard deviation, the standard error of average, and which gets the briefest huE
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