A group of adult males has foot lengths with a mean of 28.23 cm and a standard deviation of 1.27 cm. Use the range rule of thumb to identify the limits separating values that are significantly low or significantly high. Is the adult male foot length of 25.5 cm significantly low or significantly​ high? Explain. Significantly low values are   Significantly high values are

Q: The distribution of the lengths of a commercially caught fish is bell-shaped with mean 24 cm and…

A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: The weights of a certain dog breed are approximately normally distributed with a mean of 51 pounds,…

A: The mean is 51 pounds and standard deviation is 6.1 pounds.

Q: Margin of Error 3. In a sample of 120 jeepneys with a standard deviation of 35km/h speed. Find the…

A: Given, sample size = 120 standard deviation = 35 confidence level = 90% Critical value for the 90%…

Q: You throw a ball as far as you can 5 times, recording the distance for each throw: 165 feet, 184…

A: since only 5 observation is given we will consider them as sample (n = 5)and population (N = 100)…

Q: A given set of data has a specific standard deviation. Describe what will happen to the standard…

A: Standard deviation: it evaluate that how numbers are speared out in data, denoted by s. s= ∑xi-x2n…

Q: The ACT is an exam used by colleges and universities to evaluate undergraduate applicants. The test…

A: Given,mean(μ)=22.2standard deviation(σ)=4.9

Q: A researcher measures the amount of food consumed by each dog in her lab. She finds that the mean…

A: It is given that mean amount of food is 12 oz and number of dogs is 16. The sum of squared…

Q: Internet providers: In a survey of 606 homeowners with high-speed Internet, the average monthly cost…

A:

Q: Use the range rule of thumb to estimate the standard deviation. Round results to the nearest tenth.…

A: The z score is also known as the standardized raw score. It is calculated using the variable mean…

Q: he frequency distribution in the table represents the square footage of a random sample of 510…

A: square footage frequency(f) midpoint(x) 0-499 8 249.5 500-999 16 749.5 1000-1499 38 1249.5…

Q: Heights for 16-year-old boys are normally distributed with a mean of 68.3 in. and a standard…

A: Given information: μ=68.3, σ=2.9 The P-value for the 96th percentile = 0.96 Determine the z-score…

Q: Deforestation along the Sierra Madre mountains have been especially notorious. The average number of…

A: Given that.   X~N( μ , ?)   μ=4373    , ?=610   Z-score =( x - μ )/?

Q: In which month is it more unusual to have a day with a high temperature of 57°​? Explain

A: For January, mean = 36 and SD = 9 Fir July, mean = 77 and SD = 8 First we calucuate the z scores of…

Q: A researcher collects the distances between survey respondents and the closest grocery store. The…

A:

Q: E) Using a significance level a= 0.05, find the critical value using the following steps. 1. What…

A: As per our guidelines we are allwoed to answer three sub-parts   Null and Alternative Hypotheses The…

Q: The highway mileage (mpg) for a sample of 8 different models of a car company can be found below.…

A: The highway mileage (mpg) for a sample of 8 different models of a car company is given as:19, 23,…

Q: (a) Find the 45h percentile of the lengths. th (b) Find the 76 percentile of the lengths.

A: (a) The 45th percentile of the lengths is, PX<x=0.45PX-μσ<x-47840=0.45Pz<x-47840=0.45 The…

Q: The average and standard deviation for ACT scores are 20 and 3 respectively. average and standard…

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Q: A standardized test has a pop. mean of 152 and a standard deviation of 16. Molly scores at the 91st…

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Q: Last year the revenue for utility companies had a mean of $60 million with a standard deviation of…

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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: Given the data: 47, 55, 57, 63, 73. Find the standard deviation. Round the final answer to the…

A:

Q: 5. Find the standard deviation. (Round to 3 decimals.)

A:

Q: An ABC new report stated that the mean distance that commuters in the United States travel each way…

A: Given : μ = 16 , σ= 8 and n= 75

Q: The mean height of college students was 170 cm with a standard deviation of 20 cm. Suppose a student…

A: Given, μ = 170σ = 20         To find, a. Find Z score. b. Make interpretation.

Q: The weight of newborn babies in James Gordon Memorial Hospital is normally distributed with a mean…

A: Let X denotes the weight of newborn babies in James Gordon Memorial Hospital. Given that…

Q: The heights of women aged 18 to 24 are approximately normal with a mean of 65 inches and a standard…

A: Given that  X~N(μ= 65 , σ= 2.5 ) μ= 65 , σ= 2.5 Formula for Z-score Z=(X-μ)/σ

Q: On a nationwide math test, the mean was 72 and the standard deviation was 7. If Roberto scored 90,…

A: Given that, Mean = 72 Standard deviation = 7

Q: the Empirical Rule. The mean speed of a sample of vehicles along a stretch of highway is 70 miles…

A:

Q: Claim: The mean pulse rate (in beats per minute) of adults males is equal to 69 bpm. For a random…

A: From the provided information, Sample size (n) = 130 Sample mean (x̄) = 69.3 Sample standard…

Q: USE A CALCULATOR  In the 1992 presidential election, Alaska’s 40 election districts averaged 1,956.8…

A: Hey, since there are multiple subpart questions posted, we will answer first three subpart…

Q: Exam scores have a normal distribution, with Mean of 70 and Standard deviation of 10. Bob’s score…

A: Exam scores have a normal distribution, with Mean of 70 and Standard deviation of 10. Bob’s score…

Q: Use the Empirical Rule. The mean speed of a sample of vehicles along a stretch of highway is 67…

A: Empirical rule is used in statistics and probability.

Q: Given the spot speed of 20 vehicles on a certain traffic section. Use 8 classes. Determine: a. The…

A: Please find the explanation below. As asked by you, I have answered the questions (a) and (b).

Q: Find the standard deviation of the following set of scores. 10, 2, 38, 23, 38, 23, 21, 23

A: From given data, set of score: 10, 2, 38, 23, 38, 23, 21, 23 Count, N = 8 Sum, ∑x = 178

Q: The average life of a car tire is 50,000 miles.  The standard deviation is 2,000 miles   What…

A: Normal distribution, also known as the Gaussian distribution, is a probability distribution that is…

Q: The average chef at a restaurant earns $17 an hour with a deviation of $1.75. What are the chances…

A: