A set of population data has a mean of 520.4 and a standard deviation of 66.9. Calculate the z-score for a data point that has the value 635.4. Round your answer off to 2 decimal places.
Q: Americans spend an average of 5 hours per day online. If the standard deviation is 33 minutes, find…
A: Given,Mean, μ = 5 hours = 5×60 = 300 minutes.Standard deviation, σ = 33 minutes.We need to find the…
Q: a successful basketball player has a height of 6 feet 9 inches, or 206 cm. Based on statistics from…
A: Given, Z -score=4.45 A basket ball player has a height of 6 feet 9…
Q: Use the body temperatures, in degrees Fahrenheit, listed in the accompanying table. The range of the…
A:
Q: Calculate the sample standard deviation for this data set: 88, 73, 91.
A: From the provided information, 88, 73, 91 The sample mean of the data can be obtained as:
Q: A population has mean 49 and standard deviation 5. What is the data value that has a z-score of 2?…
A:
Q: The weight of football players is normally distributed with a mean of 200 pounds and a standard…
A: Given,mean(μ)=200standard deviation(σ)=25
Q: A math class analyzed the lengths of the songs played on a local radio station. The lengths of the…
A: Suppose the random variable x defines the lengths of the songs played on a local radio station.
Q: ss, the scores on a test are normally distributed. The middle 68% of the scores fall between 74 and…
A: According to the empirical rule, approximately 68% of the observations fall within 1 standard…
Q: A standardized test has a pop. mean of 152 and a standard deviation of 16. Nicole has a score of…
A: From the provided information, Mean (µ) = 152 Standard deviation (σ) = 16 X~N (152, 16) Nicole has…
Q: A Population has a Mean of 90 and a standard deviation of 25. A sample of 20 college students is…
A:
Q: The mean score on the ACT test was 23.7 and the standard deviation was 5.8. The distributions of…
A: Given: Mean = μ = 23.7 Standard deviation = σ = 5.8
Q: The GMAC Insurance company reported that the mean score on the National Drivers Test was 67.5 with a…
A:
Q: A study studied the birth weights of 2,008 babies born in the United States. The mean weight was…
A: From the provided information, Total babies (N) = 2,008 Mean weight of babies (µ) = 3234 grams…
Q: Here is a data set. 0,1,1,2,3,5,8,13 Use the table method and find the standard deviation.
A: Given numbers 0,1,1,2,3,5,8,13
Q: Determine the number of standard deviations from the mean (z-score). In the United States, the…
A: Given mean female height = 64 inches and standard devaiton = 3 inches.The distance of a data point…
Q: Tom runs a large animal shelter. At Tom's shelter, the length of stay for puppies has a mean of 76…
A: Given,mean(μ)=76standard deviation(σ)=13and X=41
Q: Ted is not particularly creative. He uses the pickup line "If I could rearrange the alphabet, I'd…
A:
Q: Scores on a test have a mean of 6 and a standard deviation of 9. Michelle has a score of 57. Convert…
A:
Q: SAT scores have a mean of 1026 and a standard deviation of 209. ACT scores have a mean of 20.8 and a…
A: The SAT scores, mean, and standard deviation are:The ACT scores, mean, and standard deviation are:
Q: A test is used to assess readiness for college. In a recent year, the mean test score was 20.620.6…
A: According to the provided data, the mean test score is 20.6 with a standard deviation is 4.9. The…
Q: A standardized test has a pop. mean of 152 and a standard deviation of 16. Molly scores at the 91st…
A:
Q: Adult men have an average height of 69.0 inches with a standard deviation of 2.8 inches. Find the…
A: The objective of this question is to find the height of a man given the z-score, the average height,…
Q: Every observation in a data set is multiplied by a constant k. What best describes the effect on…
A: Given : Every observation in a data set is multiplied by a constant k. Let assume observations are :…
Q: A meteorological office keeps records of the annual precipitation in different cities. For one city,…
A: The z score indicates how many standard deviations that a data points away from the mean. It can be…
Q: The mean height of a basketball team is 6 feet with a standard deviation of 0.2 feet. The team's…
A:
Q: Ivan and his family are relocating to Los Angeles and have found a great area in which to live. The…
A:
Q: Find the mean, variance and standard deviation. round all answers to on decimal place.
A: Solution: Suppose two dice rolled. Then, the sample space is Let X be the sum shown on the two…
Q: the mean is 146, and standard deviation is 35. A score of 181 is how many z-scores above the mean?
A:
Q: A population has a Mean of 100 and a standard deviation of 15. A sample of 20 college students is…
A: Given information- Population mean, µ = 100 Sample mean, x-bar = 125 Population standard deviation,…
Q: Pearson publishes textbooks each semester and the mean number of textbook pages published by Pearson…
A: Given data,μ=568σ=150P(X>733)=?
Q: The distribution of IQ (Intelligence Quotient) is approximately normal in shape with a mean of 100…
A: The random variable IQ follows normal distribution. We have to find the probability of people who…
Q: Find the number of standard deviations from the mean. Round your answer to two decimal places. The…
A: Given information: The annual snowfall in a town is distributed with mean 35 inches and standard…
Q: unts how many meteors she se
A:
Q: Refer to the accompanying table, which describes the number of adults in groups of five who reported…
A: Given Solution: The following is the data provided:
Q: The per capita consumption of chicken rose from 36.9 pounds in 1965 to 90.1 pounds in 2015 according…
A: A) Mean is average of all data points. x = 110+93+......+86/152 = 86 Standard deviation =…
Q: A quantitative data set as a mean of 24 and a standard deviation of 2. What percent of the…
A: Given,Mean, = 24Standard deviation, S = 2Using formula (Chebyshev's theorem),Chebyshev's theorem…
Q: The GMAC Insurance company reported that the mean score on the National Drivers Test was 77.8 with a…
A:
Q: Refer to the accompanying table, which describes the number of adults in groups of five who reported…
A:
Q: The mean is 146 and the standard deviation is 35. A score of 41 is how many z-scores below the mean?
A:
Q: Jse the magnitudes (Richter scale) of the 120 earthquakes listed in t another value, 8.00, is added…
A: The formula for computing range is, Range= max- min Max is the highest value in the data set Min the…
Q: The annual rainfall in a town has a mean of 54.57 inches and a standard deviation of 12.84 inches.…
A: Given problem Given that The annual rainfall in a town has a mean of 54.57 inches and a standard…
Q: The mean height of Americans in 1776 was 67 inches with a standard deviation of 3 inches. George…
A: Given,mean(μ)=67 inchesStandard deviation(σ)=3 inches Empirical rules:1) P(μ-σ<X<μ+σ)=68%2)…
Q: The mean of a set of data is -2.91 and its standard deviation is 3.88. Find the z score for a value…
A: According to the provided information, Mean (μ) = -2.91 Standard Deviation (σ) = 3.88
Q: Adult men have an average height of 69.0 inches with a standard deviation of 2.8 inches. Find the…
A:
A set of population data has a mean of 520.4 and a standard deviation of 66.9. Calculate the z-score for a data point that has the value 635.4. Round your answer off to 2 decimal places.
Step by step
Solved in 3 steps with 1 images
- In a recent study, the serum cholesterol levels in men were found to be normally distributed with a mean of 196.7 and a standard deviation of 39.1. Units are in mg/dL. What percentage of men have a cholesterol level that is greater than 240, a value considered to be high? Round your percentage 1 decimal place. (Take your StatCrunch answer and convert to a percentage. For example, 0.8765 → 87.7.)A set of population data has a mean of 586 and a standard deviation of 54.8. Calculate the z-score for a data point that has the value 607.9. Round your answer off to 2 decimal places.Mario's weekly poker winnings have a mean of $353 and a standard deviation of $67. Last week he won $185. How many standard deviations from the mean is that?
- In an Algebra class, the scores on a test are normally distributed. The middle 68% of the scores fall between 71 and 83. What are the mean and standard deviation for this data?A study group takes a practice statistics exam. They find that the group has a mean score of 80 with a Standard Deviation of 5. Lily has a z-score of 1.9 and wants to know her raw score. Calculate her score. the answer is Between 89.4 and 89.6 can you please show me the work, how do I find her score?Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15. Find P25, which is the IQ score separating the bottom 25% from the top 75%. Round your answer to nearest tenth.
- Suppose that the weight of male babies less than 2 months old is normally distributed with mean 11.5 pounds and standard deviation 2.7 pounds. What proportion of babies weigh less than 9.20 pounds?Write only a number as your answer. Round to 4 decimal places (for example 0.0048). Do not write as a percentage.The IRS claims it takes an average of 3.7 hours to complete a 1040 tax form. Assume the time t the form is normally distributed with a standard deviation of 15 minutes or 0.25 hours. complete Use the Cumulative Z-Score Table to answer the following questions. Write your answer as a percent using 2 decimal places. What percent of people would you expect to complete the form in less than 3.45 hours? What percent of people would you expect to complete the form-in more than 3.45 hours? What percent of people would you expect to complete the form in less than 3.4 hours? What percent of people would you expect to complete the form in more than 3.4 hours? What percent of people would you expect to complete the form between 3.4 and 3.45 hours?The mean score on the ACT test was 19.3 and the standard deviation was 5.4. The distributions of scores was approximately bell-shaped. Compute the z-score for an ACT test score of 15. Write only a number as your answer. Round your answer to two decimal places (for example: 3.15).
- The 2004 Cincinnati Bengals scored 24, 16, 9, 17, 17, 23, 20, 26, 17, 14, 58, 27, and 28 points in their first 13 games. 2. Find the mean and the standard deviation of 3. Remove the lowest score from the data set. the data. Then find the mean and standard deviation of the new data. 4. How do the standard deviation and mean change when you remove the lowest number? Why do you think this is?Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15. Find P40, which is the IQ score separating the bottom 40% from the top 60%. Round your answer to nearest tenth.Susan ran the 100 meter run in 17 seconds. What is Susan's Z-score for the 100 meter run if the class mean was 15 seconds and the standard deviation was 1.5? (Round to 2 decimal places for all Z-score calculations). Group of answer choices 1.50 1.33 -1.50 -1.33
