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

A correlation coeffiicient of zero means two variables do not vary in a consistent way with each other.   True or false?

17) In chi-squared analysis... A. If the observed data exactly agree with the predictions of the hypothesis, then we expect the p-value to be               (1.0, 100, less than 0.05, 0, greater than 0.05)           B. If the observed data closely agree with the predictions of the hypothesis, then we expect the p-value to be       (1.0, 100, less than 0.05, 0, greater than 0.05)         C. If the observed data do not at all agree with the predictions of the hypothesis, then we expect the p-value to be (1.0, 100, less than 0.05, 0, greater than 0.05)           Chose one from the parenthesis for each question.

Are these all correct? Last two questions are 8. What is the critical value? Round to two decimal places. 9. What is your conclusion from the chi-square test? option 1: Fail to reject H option 2: Reject Ho

What is the frequency of the aa genotype if the frequencies of AA & Aa are 0.1900 and 0.3600?

Discuss the pressures of filtration indicating the hydrostatic and colloidal osmotic pressures responsible for moving substances in or out of the glomerulus.  Name each pressure and write an equation that indicates the pressures affecting glomerular filtration.

How did P<0.005 come into being? How do you determine what is due to chance and what's not?

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. cong

In a recently published case control study, the researcher reported an odds ratio of 3.55 (95% CI 1.88-5.4). This indicates that the OR is significant and the associated p=value is less than 0.05. A. TrueB. False     please explain the reasoning behind the answer, thank you!

Upon 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.