You repeatedly draw samples ofn= 100 from a population with a mean of 75 and a standard deviation of 4.5. What sample mean corresponds to az-score of 2.00?
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You repeatedly draw samples ofn= 100 from a population with a mean of 75 and
a standard deviation of 4.5. What sample mean corresponds to az-score of 2.00?
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- P₁ P₂ F₁ Population F2 BC₁ Variance 3.3 days² 4.7 days² 6.6 days² 19.2 days² 12.1 days² a) Given the variances from these specific populations, compute for the broad sense and the narrow sense heritability values. Express your final answers in percentage with one decimal place. Show complete solutions and box or highlight your final answers. congYou have been breeding roaches in your dorm and are trying to increase the speed in your roach population. You measure speed by timing how quickly the roaches race along the linear track in your dorm room. Your current population mean is 9.3 seconds with a standard deviation of 0.32 sec. You selected the fastest 10% of your current population to be parents of the next generation. The broad and narrow sense heritability values for racing speed in roaches are 0.93 and 0.78, respectively. You wish to develop a faster population of roaches. Round all answers properly to three decimal digits. Enter all answers without units so that they will be correctly recognized by Moodle. The numerical value for the standardized selection point is The numerical value for the truncation point is seconds. The numerical value for the selection intensity is Calculate the selection differential. S = seconds. The mean of the selected parents is seconds. The response to selection is seconds. The mean of the…Which is the correct equation for the chisquare statistic? Group of answer choices a)x^2 = [(observed-expected)^2]/expected b)x^2 = sum[((observed-expected)^2)/observed] c)x^2 = sum[((observed-expected)^2)/expected] d)x^2 = sum[(observed-expected)/expected] What is a "p-value"? Group of answer choices a)the threshold at which you will reject the null hypothesis b)the probability of the null hypothesis being false c) the percentage of days you are sick during the year d) the probability of the null hypothesis being true
- Suppose that you are interested in estimating a population mean. You select a random sample of items, and compute the sample mean and the sample standard deviation. You then compute a 95% confidence interval to be LCL=28.4 - UCL=37.9. So what does that mean? It means that you are 95% confident that the unknown population mean that you are estimating is between the LCL and UCL. So what does that mean? It means that if you were to iterate this sampling process many times, say 100, and calculate 100 confidence intervals, then 95 of those intervals will contain the unknown population mean, and 5 will not. Give me an example of how CI can be used in your work. FYI I work in Endocrinology dept. Specific diabetesUpon comparing the mass of Fuji apples grown on two farms in Georgetown, KY--one using organic fertilizer and a neighboring farm using commercial fertilizer, the a research program commissioned by the USDA finds that the mean mass of organically and commercially grown apples are 224.2 g and 224.6 g, respectively. The standard error for both means is 0.015 g. The statistical test obtained by comparing the mass of several thousand apples from each farm (organic: 6,000, commercial: 78,000) produced a p-value of 0.001. What is correct interpretation of the results? The apples from the non-organic apples tend to be heavier than organic apples. There is no discernible difference in the mass of apples grown on both farm; this is supported by the statistically significant P-vale of 0.001. O Apples from the commercial farm were heavier than those from the organic farm, and this difference is statistically significant. O The difference in mass of apples from the two farms is negligible.b. a. in a population. Hardy-Weinberg p+q=1 (Rr), and 16% white (rr). This population is in a Hardy-Weinberg equilibrium. 42. In a population of cattle, the following color distribution was noted: 36% red (RR), 48% roan baith p²+2pq+q² =1 Determine the frequencies of the R alleles and the r alleles? assumptions are met? What will be the distribution of genotypes in the next generation if the Hardy-Weinberg a. 36% red; 48% roan; 16% white b. 30% red; 50% roan; 20% white c. 30% red; 60% roan; 10% white d. 40% red; 40% roan; 20% white 10 u ti- sor
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