What is the best-estimate (with associated units) for the initial concentration (i.e. the concentration at t = 0) of the drug in the patient`s blood stream ?
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What is the best-estimate (with associated units) for the initial concentration (i.e. the concentration at t = 0) of the drug in the patient`s blood stream ?
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- Find the mean hourly cost when the cell phone described above is used for 240 minutes.Suppose that a customer is purchasing a car. He conducts an experiment in which he puts 10 gallons of gas in the car and drives it until it runs out of gas. He conducts this experiment 15 times on each car and records the number of miles driven. Median for Car 2 M = 250 mi / 10 gal (Type an integer or decimal rounded to one decimal place as needed.) Full data setO Range for Car 1 R=O mi / 10 gal (Type an integer or decimal rounded to one decimal place as needed.) Car 1 245 242 215 244 220 265 291 160 284 251 169 319 257 306 267 Range for Car 2 R=O mi / 10 gal (Type an integer or decimal rounded to one decimal place as needed.) Car 2 230 206 214 236 242 256 245 255 241 264 276 252 250 251 257Periodically, the county Water Department tests the drinking water of homeowners for contaminants such as lead and copper. The lead and copper levels in water specimens collected in 1998 for a sample of 10 residents of a subdevelopement of the county are shown below. lead (g/L) 2.9 0.2 5.1 4.2 5.5 1.2 0.133 0.774 0.214 0.671 0.444 0.234 0.357 0.761 0.176 0.888 (a) Construct a 99% confidence interval for the mean lead level in water specimans of the subdevelopment. OSMOSO copper (mg/L) 0.3 1.3 4.9 1.7 (b) Construct a 99% confidence interval for the mean copper level in water specimans of the subdevelopment. OSHSO
- Ascientist investigated the effect of cross-fertilization on the heights of plants. In one study, the scientist planted 15 pairs of a species of plant. Each pair consisted of one cross-fertilized plant and one self-fertilized plant grown in the same pot. The accompanying table gives the height differences, in eighths of an inch, for the 15 pairs. Each difference is obtained by subtracting the height of the self-fertilized plant from that of the cross-fertilized plant. Complete parts (a) through (e) below. Click here to view the data. Click here to viewa table of critical values of t. a. Identify the variable under consideration. What is the variable? V Height b. Identify the two populations What are the populations? A. The self-fertilized plants and the cross-fertilized plants c. Identify the paired-difference variable What is the paired-difference variable? O C. Height of the cross-fertilized plant – height of the self-fertilized plant d. Are the numbers in the table paired…A man is running around a circular track that is 200 m in circumference. An observer uses a stopwatch to record the runner's time at the end of each lap, obtaining the data in the following table. Time (s) Distance (m) 52 200 108 400 165 600 223 800 285 1000 352 1200 423 1400 497 1600 (a) What was the man's average speed (rate) between 108 s and 223 s? (Round your answer to two decimal places.) m/s (b) What was the man's average speed between 352 s and 497 s? (Round your answer to two decimal places.) m/s (c) Calculate the man's speed for each lap. Is he slowing down, speeding up, or neither? O slowing down O speeding up O neitherConsider the following hypotheses: Moi p20.48 Hai p<0.48 Book Which of the following sample information enables us to reject the null hypothesis at a = 0.05 and at a = 0.10? (You may find it useful to reference the appropriate table: ztable or table) (Round ll intermediate calculations to at least 4 decimal places.) Hint nnt rences a= 0.06 a- 0.1 a. x = 50, n = 122 bx = 118, n = 329 cp-042, n= 41 d. p=042, n = 413 TABLE 2 Student's t Distribution Entries in this table provide the values of t that correspond to a given upper-tail area a and a specified number of degrees of freedom df. For example, for a = 0.05 and df = 10, P(T10 2 1.812) = 0.05. Area in Upper Tail, a
- length period cm 1 19 0.8625 *. 24 0.9667 3 29 1.1083 4. 34 1.1958 ... 39 1.2292 ... 6 44 1.3625 7 49 1.4083 8 54 1.4542 9 58 1.5375 10 63 1.6792 11 68 1.6875 period vs length 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1 0.9 20 30 40 50 60 length (cm) Display Curve Fit Uncertainties period Curve: t = Al +B A : 0.0167 B: 0.589 s RMSE : 0.0355 s r: 0.992 cm (s) pouadThe systolic blood pressure...A man is running around a circular track that is 200 m in circumference. An observer uses a stopwatch to record the runner's time at the end of each lap, obtaining the data in the following table. Time (s) Distance (m) 42 200 90 400 139 600 202 800 266 1000 336 1200 413 1400 492 1600 (a) What was the man's average speed (rate) between 90 s and 202 s? (Round your answer to two decimal places.) m/s
- Roman, a health data officer, was tasked to create a report describing the height of all the children ages 12-15 years in a small town in Rome. He measured the height of all the 37 children (ages 12-15 years) in that small town. Answer the table showing the number and percentage of children ages 12 to 15 years according to sex. Sex f Rel f Male <2 decimal places> Female <2 decimal places> Σf <2 decimal places>Periodically, the county Water Department tests the drinking water of homeowners for contaminants such as lead and copper. The lead and copper levels in water specimens collected in 1998 for a sample of 10 residents of a subdevelopement of the county are shown below. lead (g/L) copper (mg/L) 2.9 0.2 5.1 4.2 5.5 1.2 0.3 1.3 4.9 1.7 0.133 0.774 0.214 0.671 0.444 0.234 0.357 0.761 0.176 0.888 (a) Construct a 99% confidence interval for the mean lead level in water specimans of the subdevelopment. OSASO (b) Construct a 99% confidence interval for the mean copper level in water specimans of the subdevelopment. ≤H≤Glaucoma is a leading cause of blindness in the United States, N. Ehlers measured the difference in corneal thickness (in microns) between the two eyes of eight patients. Each patient had one eye that had glaucoma and one eye that was normal. The difference was measured as the corneal thickness of normal eye – corneal thickness of eye with Glaucoma. Corneal thickness is important because it can mask an accurate reading of eye pressure. Use ? = .05. Hypothesis: H0: μd=0Ha: μd≠0 Using output Test statistics : t=0.134P value=0.897 Degrees of freedom (df): df=7 Level of significance: α=0.05 Decision: P value > 0.05 thus we fails to reject null hypothesis. Question a)Write a report summarizing your findings. When writing the report consider that medical staff estimate that a difference of 4.5 microns or more could impact on their ability to interpret eye pressure correctly. b) Define for the hypothesis stated in part b) what a type 1 error and type 2 error would mean. Is it possible…