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Which of the following is most likely a parameter as opposed to a statistic?
A. The average score of the first five students completing an assignmentB. The proportion of females registered to vote in a countryC. The average height of people randomly selected from a databaseD. The proportion of trucks stopped yesterday that were cited for bad brakes.
Construct a 95% confidence interval for the proportion and calculate the P value for the given test.
Post a behavioral research situation that could use a Pearson coefficient research study and a chi square research study to the Discussion Area.
If you have n independent flips of a coin with probability p of landing heads. And a changeover occurs whenever an outcome differs from the one preceding it.
List the steps involved in hypothesis testing using: a) the traditional/classical method; b) the probability-value method. Provide an example of each.
A normal distribution has a mean of µ = 70 with σ = 12. If one score is randomly selected from this distribution, what is the probability that the score will be less than X = 55?
What are the null and alternative hypotheses? In what way do the two estimates of the defect rate in question 3g differ?
Think about a density curve that consists of two line segments. The first goes from the point (0, 1) to the point (0.7, 1). The second goes from (0.7, 1) to (0.9, 2) in the xy-plane. What percent of observations fall below 0.70?
If the top 15% of the test scores are usually good enough for admission to law school, find the cut off score for gaining admission.
A group of items of data have been found to be normally distributed with a mean of 80 and a standard deviation of 6. Please convert 80 to a z-score and show the calculation.
A standard deviation of 1.5. The distribution is normal. What proportion of faculty consume an amount between 4 & 6 cups?
Simplification by Factorization and finding domain-What happens when x is 6 or 3. What is the domain if x can only be 6 or 3?
Dertermine the probability that a male is a Major or a Colonel?
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