Why does Stacey argue against the idea of a feminist ethnography?
Which of the following is a component of ethnographic research? Why does Stacey argue against the idea of a feminist ethnography? Because she thinks that the fieldwork relationship is inherently unequal. What are the two main types of data that can be used in visual ethnography?
How many participants should a study have?
When a study’s aim is to investigate a correlational relationship, however, we recommend sampling between 500 and 1,000 people. More participants in a study will always be better, but these numbers are a useful rule of thumb for researchers seeking to find out how many participants they need to sample.
How many samples do you need for a normal distribution?
30
What is the minimum sample size needed for a 95 confidence interval?
784 people
Is N sample size or number of samples?
Sample size refers to the number of participants or observations included in a study. This number is usually represented by n. The size of a sample influences two statistical properties: 1) the precision of our estimates and 2) the power of the study to draw conclusions.
What is the formula of sample size?
n = N*X / (X + N – 1), where, X = Zα/22 *p*(1-p) / MOE2, and Zα/2 is the critical value of the Normal distribution at α/2 (e.g. for a confidence level of 95%, α is 0.05 and the critical value is 1.96), MOE is the margin of error, p is the sample proportion, and N is the population size.
What does N equal in stats?
Population Mean The symbol ‘N’ represents the total number of individuals or cases in the population.
What is K in Chebyshev’s theorem?
Chebyshev’s inequality says that at least 1-1/K2 of data from a sample must fall within K standard deviations from the mean (here K is any positive real number greater than one).
What is the smallest value of k in Chebyshev’s theorem?
(b) at least 0.99? Find the smallest value of k in Chebyshev’s theorem for which the probability that a random variable lies between and is at least 0.95. From (1) and (2), the value of k is, Therefore, the smallest value of is .
What is Chebyshev’s theorem and how is it used?
Chebyshev’s theorem is used to find the proportion of observations you would expect to find within a certain number of standard deviations from the mean. For example, your interval might be from -2 to 2 standard deviations from the mean.
Does Chebyshev’s inequality apply to all distributions?
True, Chebyshev’s inequality is less precise than the empirical rule, but will work for any distribution, while the empirical rule only works for bell-shaped distributions.
What is the importance of Chebyshev’s inequality?
The importance of Markov’s and Chebyshev’s inequalities is that they enable us to derive bounds on probabilities when only the mean, or both the mean and the variance, of the probability distribution are known.
How do you find the percentage of data in one standard deviation of the mean?
1 Expert Answer You can simply count how many data points out of the total of 90 fall between these two lines. The rule that governs normal curves (of which this is not one if you look at the histogram) is that 68% of the data will fall within one s of the mean.
How do you find the top 10 percent of a normal distribution?
As a decimal, the top 10% of marks would be those marks above 0.9 (i.e., 100% – 90% = 10% or 1 – 0.9 = 0.1).