The mean number of push-ups that an average, healthy 17-year-old boy can do without stopping is...
The mean number of push-ups that an average, healthy 17-year-old boy can do without stopping is 23, with standard deviation 5. What is the z-score corresponding to 17 push-ups? Round your answer to the nearest hundredth.
z-score:
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The mean number of push-ups that an average, healthy 17-year-old
boy can do without stopping is...
Tony, a 15-year-old boy is 72 inches tall. According to the CDC, the average height at...
Tony, a 15-year-old boy is 72 inches tall. According to the CDC, the average height at this age is 67 inches with a standard deviation of 3.19 inches 5. a. Calculate Tony's z-score b. What is Tony's percentile score for height? c. What percentage of boys Tony's age are taller than Tony?
Heights of 13 year old males in the USA are normally distributed with a mean of...
Heights of 13 year old males in the USA are normally distributed with a mean of 60 inches and a standard deviation of 2 inches. Find the probability that a randomly selected 13 year old male in the USA has a height more than 58 inches. (Write your answer as a decimal number, rounded to the nearest hundredth) Heights of 13 year old males in the USA are normally distributed with a mean of 60 inches and a standard deviation...
The mean height of 15 to 18-year-old males from Chile from 2009 to 2010 was 170...
The mean height of 15 to 18-year-old males from Chile from 2009 to 2010 was 170 cm with a standard deviation of 6.28 cm. Male heights are known to follow a normal distribution. Let X = the height of a 15 to 18-year-old male from Chile in 2009 to 2010. Then X ~ N(170, 6.28). Suppose a 15 to 18-year-old male from Chile was 176 cm tall from 2009 to 2010. The z-score when x = 176 cm is z...
26. Kona, a 15-year-old boy, is 72 inches tall. According to the CDC, the average height...
26. Kona, a 15-year-old boy, is 72 inches tall. According to the CDC, the average height for boys at this age is 67.00 inches with a standard deviation of 3.19 inches. a. Calculate Kona's z-score. b. What percentage of boys this age are shorter than Kona? c. What percentage of boys this age are as tall as or taller than Kona? d. If lan is in the 30m percentile for height, as a 15 year old boy, how tall is...
Question 3 (1.25 points The mean length of one-year-old spotted flounder, in millimeters, is 130 with...
Question 3 (1.25 points The mean length of one-year-old spotted flounder, in millimeters, is 130 with standard deviation of 12. The distribution of flounder lengths is approximately bell shaped. Suppose that Anna caught a one-year-old spotted flounder that was 135 milimeters in length. What is the z-score for this length? Write only a number as your answer. Round your answer to two decimal places (for example: 3.15) Your Answer: Answer Question 4 (1.25 points) The mean score on the ACT...
Find the number of standard deviations from the mean. Round your answer to two decimal places...
Find the number of standard deviations from the mean. Round your answer to two decimal places 12) The annual snowfall in a town has a mean of 33 inches and a standard deviation of 12 inches. Last year there were 69 inches of snow. How many standard deviations from the mean is that? Find the z-score corresponding to the given value and use the z-score to determine whether the value is unusual. Consider a score to be unusual if its...
In a certain city, the average 20- to 29-year old man is 72.5 inches tall, with...
In a certain city, the average 20- to 29-year old man is 72.5 inches tall, with a standard deviation of 3.0 inches, while the average 20- to 29-year old woman is 64.3 inches tall, with a standard deviation of 3.9 inches. Who is relatively taller, a 75-inch man or a 70-inch woman? Find the corresponding z-scores. Who is relatively taller, a 75-inch man or a 70-inch woman? Select the correct choice below and fill in the answer boxes to complete...
One year Ron had the lowest ERA (earned-run average, mean number of runs yielded per nine...
One year Ron had the lowest ERA (earned-run average, mean number of runs yielded per nine innings pitched) of any male pitcher at his school, with an ERA of 2.74. Also, Rita had the lowest ERA of any female pitcher at the school with an ERA of 3.21. For the males, the mean ERA was 4.765 and the standard deviation was 0.675. For the females, the mean ERA was 3.814 and the standard deviation was 0.594. Find their respective z-scores....
na certain city, the average 20- to 29-year old man is 72.5 inches tall, with inches...
na certain city, the average 20- to 29-year old man is 72.5 inches tall, with inches tall, with a standard deviation of 3.9 inches. Who is relatively taller, a 75-inch man or a 70-inch woman? standard deviation of 3.1 inches, while the average 20- to 29-year old woman is 64.1 Find the corresponding z-scores. Who is relatively taller, a 75-inch man or a 70-inch woman? Select the correct choice below and fill in the answer boxes to complete your choice....
A set of data items is normally distributed with a mean of 70 and a standard...
A set of data items is normally distributed with a mean of 70 and a standard deviation of 9. Convert 75 to a z-score. 275-0 (Do not round until the final answer. Then round to the nearest hundredth as needed.)
Tony, a 15-year-old boy is 72 inches tall. According to the CDC, the average height at this age is 67 inches with a standard deviation of 3.19 inches 5. a. Calculate Tony's z-score b. What is Tony's percentile score for height? c. What percentage of boys Tony's age are taller than Tony?
26. Kona, a 15-year-old boy, is 72 inches tall. According to the CDC, the average height for boys at this age is 67.00 inches with a standard deviation of 3.19 inches. a. Calculate Kona's z-score. b. What percentage of boys this age are shorter than Kona? c. What percentage of boys this age are as tall as or taller than Kona? d. If lan is in the 30m percentile for height, as a 15 year old boy, how tall is...
Question 3 (1.25 points The mean length of one-year-old spotted flounder, in millimeters, is 130 with standard deviation of 12. The distribution of flounder lengths is approximately bell shaped. Suppose that Anna caught a one-year-old spotted flounder that was 135 milimeters in length. What is the z-score for this length? Write only a number as your answer. Round your answer to two decimal places (for example: 3.15) Your Answer: Answer Question 4 (1.25 points) The mean score on the ACT...
Find the number of standard deviations from the mean. Round your answer to two decimal places 12) The annual snowfall in a town has a mean of 33 inches and a standard deviation of 12 inches. Last year there were 69 inches of snow. How many standard deviations from the mean is that? Find the z-score corresponding to the given value and use the z-score to determine whether the value is unusual. Consider a score to be unusual if its...
na certain city, the average 20- to 29-year old man is 72.5 inches tall, with inches tall, with a standard deviation of 3.9 inches. Who is relatively taller, a 75-inch man or a 70-inch woman? standard deviation of 3.1 inches, while the average 20- to 29-year old woman is 64.1 Find the corresponding z-scores. Who is relatively taller, a 75-inch man or a 70-inch woman? Select the correct choice below and fill in the answer boxes to complete your choice....
A set of data items is normally distributed with a mean of 70 and a standard deviation of 9. Convert 75 to a z-score. 275-0 (Do not round until the final answer. Then round to the nearest hundredth as needed.)
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