A sample of n = 16 scores is obtained from a population with a mean of 70 and standard deviation of 20. If the sample mean is 75, then the z-score corresponding to the sample mean is ____. Hint: You need to use the sampling distribution of the mean for a sample size of 16 and population standard deviation of 20.
A sample of n = 16 scores is obtained from a population with a mean of...
A random sample of n=49 observations is drawn from a population with a mean equal to15 and a standard deviation equal to 14. a. Give the mean and standard deviation of the (repeated) sampling distribution x overbarx. b. Describe the shape of the sampling distribution of x overbarx. Does your answer depend on the sample size? c. Calculate the standard normal z-score corresponding to a value of x overbarxequals=12.5. d. Calculate the standard normal z-score corresponding to a value of...
A random sample of n=36 observations is drawn from a population with a mean equal to25 and a standard deviation equal to 24 a. Give the mean and standard deviation of the (repeated) sampling distribution x over bar x. b. Describe the shape of the sampling distribution of x over bar x. Does your answer depend on the sample size? c. Calculate the standard normal z-score corresponding to a value of x over bar x = 20. d. Calculate the...
A random sample of n=49 observations is drawn from a population with a mean equal to15 and a standard deviation equal to14. THE ANSWER FOR A AND B ARE CORRECT - C AND D ARE INCORRECT. PLEASE GIVE ME THE CORRECT ANSWER FOR D. a. Give the mean and standard deviation of the (repeated) sampling distribution x overbarx. b. Describe the shape of the sampling distribution of x overbarx. Does your answer depend on the sample size? c. Calculate the...
A sample of n = 9 scores is obtained from a population with u = 70 and o = 5. If the sample mean is M = 80, then what is the z-score for the sample mean? a. z=0.33
A random sample of n=36 observations is drawn from a population with a mean equal to 24 and a standard deviation equal to 12. a. Give the mean and standard deviation of the (repeated) sampling distribution x over bar x. b Describe the shape of the sampling distribution of x over bar x. Does your answer depend on the sample size? c. Calculate the standard normal z-score corresponding to a value of x over bar x=19. d. Calculate the standard...
A random sample of n=36 observations is drawn from a population with a mean equal to 24 and a standard deviation equal to 12. a. Give the mean and standard deviation of the (repeated) sampling distribution x over bar x. b Describe the shape of the sampling distribution of x over bar x. Does your answer depend on the sample size? c. Calculate the standard normal z-score corresponding to a value of x over bar x=19. d. Calculate the standard...
A random sample of 64 observations is drawn from a population with a mean equal to 71 and a standard deviation equal to 16. What is the mean and the standard deviation of the sampling distribution of x̄? μ = σ = Describe the shape of the sampling distribution of x̄. Does this answer depend on the sample size? The shape is that of a distribution and depend on the sample size. Calculate the z-score corresponding to a value of...
A random sample of n - 16 scores is selecdted from a normal population with a mean of p - 50. After atreatment is administered to the individuals in the sample, the sample mean is found to be M -54 If the population standard deviation is σ-8, is the sample mean sufficient to conclude that the treatment has a significant effect? Use a two-tailed test with α-.05. (Hint: Recall that the critical value for a two-tailed test with α-.05 is...
25 Anormal population - 0 - 8. A random sample and scores from 54 Wurthe-wore for this sample is population has a mean of 24. A random sample of 4 scares is obtained from a mal population with probability of obtaining met greater than 22 for this sample! - 20 and a t West - 20 the following samples is deur likely to be obtained For normal perelation with a Band for a sample of n = 4 X- 5...
A random sample of =49 observations is drawn from a population with a mean equal to 15 and a standard deviation equal to 14. a. Give the mean and standard deviation of the (repeated) sampling distribution x overbarx. b. Describe the shape of the sampling distribution of x overbarx. Does your answer depend on the sample size? c. Calculate the standard normal z-score corresponding to a value of x overbarxequals=12.5. d. Calculate the standard normal z-score corresponding to a value...