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13. If we have a normal distribution with a mean of 75 and a standard deviation of 3. a. what z-score(s) would cut off the middle 40% of the distribution? b. what raw score(s) would cut off the l...
12 and 13 12. Using a normal distribution and z score formula answer the following questions:...
12 and 13
12. Using a normal distribution and z score formula answer the following questions: a. Find the Z-score that cuts off the top 35% of the nornval curve b. Find the data value to the nearest whole number that cuts off the bottom 20% of the curve given that the mean is 75 and sample standard deviation is 5. c. Find the z scores that cut off the middle 50% of the normal curve. 13. This question is...
A normal distribution has mean = 12 and standard deviation = 3. a. The z-score corresponding...
A normal distribution has mean = 12 and standard deviation = 3. a. The z-score corresponding to x = 18. b. Find the raw score corresponding to z = -1.5.
12. Using a normal distribution and z score formula answer the following questions: a. Find the...
12. Using a normal distribution and z score formula answer the following questions: a. Find the Z-score that cuts off the top 35% of the nornval curve b. Find the data value to the nearest whole number that cuts off the bottom 20% of the curve given that the mean is 75 and sample standard deviation is 5. c. Find the z scores that cut off the middle 50% of the normal curve.
12-13 show work 12. Using a normal distribution and z score formula answer the following questions:...
12-13 show work
12. Using a normal distribution and z score formula answer the following questions: a. Find the Z-score that cuts off the top 35% of the nornval curve b. Find the data value to the nearest whole number that cuts off the bottom 20% of the curve given that the mean is 75 and sample standard deviation is 5. c. Find the z scores that cut off the middle 50% of the normal curve. 13. This question is...
12. Using a normal distribution and z score formula answer the following questions: a. Find the...
12. Using a normal distribution and z score formula answer the following questions: a. Find the Z-score that cuts off the top 35% of the nornval curve b. Find the data value to the nearest whole number that cuts off the bottom 20% of the curve given that the mean is 75 and sample standard deviation is 5. c. Find the z scores that cut off the middle 50% of the normal curve. 13. This question is worth 4 points...
Assume you have a normal distribution with a mean of 50 and a standard deviation of...
Assume you have a normal distribution with a mean of 50 and a standard deviation of 10. What will the z-score be for the raw score "80"? -20 -3 3 . 20
In a normal distribution with mean 3 and standard deviation of 7, what are the upper...
In a normal distribution with mean 3 and standard deviation of 7, what are the upper and lower limit x values for the middle 50% of the data?
A normal distribution has a mean of 80 with a standard deviation of 20. What score...
A normal distribution has a mean of 80 with a standard deviation of 20. What score separates the highest 40% of the distribution from the rest of the scores? A) X= 54.4 B) X= 85 C) X= 75 D) X= 105.6
Question 2 Normal model a. A cut-off score of 79 has been established for a sample...
Question 2 Normal model a. A cut-off score of 79 has been established for a sample of scores in which the mean is 67. If the corresponding z-score is 1.4 and the scores are normally distributed, what is the standard deviation? b. The standard deviation of a normal distribution is 12 and 95% of the values are greater than 6. What is the value of the mean? c. The mean of a normal distribution is 130, and only 3% of...
A normal-shaped distribution has u 130 and o = 24. (a) What are the Z-score values...
A normal-shaped distribution has u 130 and o = 24. (a) What are the Z-score values that form the boundaries for the middle 98% of the distribution of sample means? lower z-score boundary: upper Z-score boundary: Report answers accurate to at least 3 decimal places. 36 scores. (b) Compute the z-score for M 140 for a sample of n = Z-score = Report answers accurate to at least 3 decimal places. (c) Is this sample mean in the middle 98%...
12 and 13
12. Using a normal distribution and z score formula answer the following questions: a. Find the Z-score that cuts off the top 35% of the nornval curve b. Find the data value to the nearest whole number that cuts off the bottom 20% of the curve given that the mean is 75 and sample standard deviation is 5. c. Find the z scores that cut off the middle 50% of the normal curve. 13. This question is...
12. Using a normal distribution and z score formula answer the following questions: a. Find the Z-score that cuts off the top 35% of the nornval curve b. Find the data value to the nearest whole number that cuts off the bottom 20% of the curve given that the mean is 75 and sample standard deviation is 5. c. Find the z scores that cut off the middle 50% of the normal curve.
12-13 show work
12. Using a normal distribution and z score formula answer the following questions: a. Find the Z-score that cuts off the top 35% of the nornval curve b. Find the data value to the nearest whole number that cuts off the bottom 20% of the curve given that the mean is 75 and sample standard deviation is 5. c. Find the z scores that cut off the middle 50% of the normal curve. 13. This question is...
12. Using a normal distribution and z score formula answer the following questions: a. Find the Z-score that cuts off the top 35% of the nornval curve b. Find the data value to the nearest whole number that cuts off the bottom 20% of the curve given that the mean is 75 and sample standard deviation is 5. c. Find the z scores that cut off the middle 50% of the normal curve. 13. This question is worth 4 points...
Assume you have a normal distribution with a mean of 50 and a standard deviation of 10. What will the z-score be for the raw score "80"? -20 -3 3 . 20
A normal-shaped distribution has u 130 and o = 24. (a) What are the Z-score values that form the boundaries for the middle 98% of the distribution of sample means? lower z-score boundary: upper Z-score boundary: Report answers accurate to at least 3 decimal places. 36 scores. (b) Compute the z-score for M 140 for a sample of n = Z-score = Report answers accurate to at least 3 decimal places. (c) Is this sample mean in the middle 98%...
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