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Suppose we have a population of scores with a mean (μ) of 200 and a standard deviation (σ) of 10. Assume that the distribution is normal. Provide answers to the following questions:
1. What score would cut off the top 5 percent of scores?2. What score would cut off the bottom 5 percent of scores?3. What score would cut off the top 2.5 percent of scores?4. What score would cut off the bottom 2.5 percent of scores?
Suppose a study is constructed to test a claim, at a 0.05 signifigance level that a population proportion is 40%. A simple random sample of 750 subjects has a proportion of 42%.
Compute the correlation and sample covariance. Compute the sample covariance and the sample correlation. Intuitively, what kind of correlation.
A recent Survey indicated that 18% of America adults were in favor of cloning human embryos. What is the probability that in a group of 30 adult Americans
Assume the distribution of ages of homes follow an approximately normal distribution. Show all the seven steps and include the p-value.
Which of the following statements regarding the coefficient of correlation is true. A value of 0.00 indicates two variables are not related.
In 2002 the Supreme Court ruled that schools could require random drug tests of students participating in competitive after-school activities such as athletics.
What is the point estimator of the mean percentage of reservations that are cancelled on the day of the flight?
If the analyst finds evidence that the boast of dealership A is correct. What will be your critical value? What is the value of the test statistic? the boast of dealership A is correct?
A study of 35 professors showed that the average time they spent creating test questions was 13.5 minutes per question. The standard deviation of the population is 3.8. Which of the following is the 99% confidence interval for the average number o..
What type of data would you obtain from a rating scale? Prove an application/example in your response of how this instrument could be used. For what population would you use a graphical rating scale?
Create a 99% confidence interval for mean overall duration of symptoms in population of individuals who used zinc lozenges.
According to the regional bar assoc., 60% of people who take the bar exam pass. Find the approximate probability that at least 61% of 200 randomly selected people taking the bar will pass. Round to three decimal places as needed.
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