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 z-score is less than -2.00 or greater than 2.00. Round the z-score to the nearest tenth if necessary. A weight of 224 pounds among a population having a mean weight of 158 pounds and a standard deviation of 23.5 pounds.

Q: A random sample of 80 tires showed that the mean mileage per tire was 41,700 mi, with a standard…

A: (a) A random sample of 80 tires showed that the mean mileage per tire was 41700 mi, with a standard…

Q: eighth grade​ students' scores on a national mathematics assessment test has a mean score of 293.…

A:

Q: Hugo scores an average of 28 points per basketball game, and his points per basketball game are…

A: From the provided information, Average (µ) = 28 points Score (x) = 14 points z-score = -2

Q: The time students take to complete an exam follows a uniform distribution and is between 35 minutes…

A: Given data: The time students take to complete an exam follows a uniform distribution. a = 35 b = 60

Q: Assume that weights of men are normally distributed with a mean of 160 pounds and a standard…

A: Given, Weights of men follows normal distribution with mean 160 pounds and standard deviation 25…

Q: A successful basketball player height is 203 cm. His converts to the z score of 4.10. How many…

A: Consider, X = 203  z-score = 4.10 z-score is a numerical value that tells the number of standard…

Q: The time it takes a student to walk from the dorm to the chemistry lab follows roughly a Normal…

A: Let X be the time it takes a student to walk from the dorm to the chemistry lab which follows normal…

Q: Answer the following questions given that the mean weekly quiz score for a class is 72 with a…

A: Given data,Mean μ=72sd     σ=8P(70<X<90)=?

Q: The average salary at a certain company is $80,000 with a standard deviation of $12,000. Charles…

A: It is given that the mean and standard deviation are $80,000 and $12,000, respectively.

Q: a bank's loan officer rates applicants for credit. the ratings are normally distributed with a mean…

A: We have to find 60th percentile.

Q: The mean score of a placement exam for entrance into a math class is 80 points, with a standard…

A: Given:-    μ = 80    6=10

Q: The average score of everyone in the world that takes the quantitative section of the GRE is 151.3…

A: From the provided information, Sample size (n) = 25 Sample mean (x̄) = 154.9 Population standard…

Q: A random sample of 77 eighth grade​ students' scores on a national mathematics assessment test has a…

A: Given data,n=77x-=282μ=275σ=32α=0.14

Q: The speed limit of a road is 65 miles per hour. The speed of a car on the highway follows a normal…

A: Note: Hi there! Thank you for posting the question. Unfortunately some portion of the question seems…

Q: The weights of a certain type of steer follow a Normal model with a mean weight of 1165 pounds and a…

A: Mean = 1165 Standard deviation = 90 a) The required weight for a steer to be among the heaviest 10%…

Q: Renee scores an average of 153 points in a game of bowling, and her points in a game of bowling are…

A:

Q: Steel rods are manufactured with a mean length of 27 centimeter​ (cm). Because of variability in the…

A: Given Data Population Mean,μ = 27.0 Population Standard Deviation,σ = 0.06

Q: A distribution of values is normal with a mean of 235 and a standard deviation of 14.4. Find P63,…

A:

Q: A national secondary achievement test is administered annually to high school students. The test…

A:

Q: The mean number of birth of babies over a 6 month period in Ibri is 105 and the coefficient of…

A: The coefficient of variation can be calculated using the formula CV=standard deviationmean×100.…

Q: Which of the following values for the population standard deviation would cause a score located…

A: Given different values of standard deviation and we need to select the one which makes value of x to…

Q: SAT scores have a mean of 1000 and a standard deviation of 100. ACT scores have a mean of 20 and a…

A: Solution:Given data: SAT score, μ =1000mean score                                            x…

Q: The amount of money raised by Clayton State teams for the Statistics Games is normally distributed,…

A: Given,mean(μ)=$360standard deviation(σ)=$15and data value(X)=$396

Q: A random sample of 49 shoppers showed that they spend an average of $23.45 per visit and the…

A: 1. Point estimate of the population mean is the sample mean.

Q: A random sample of 86 eighth grade students' scores on a national mathematics assessment test has a…

A: Given information Sample mean x̅ = 289 Population mean µ = 285 Sample size = 86 Standard deviation σ…

Q: The mean grade on a final examination was 72 and the standard deviation was 9. The top 10% of the…

A: Mean(µ) = 72Standard deviations (σ) = 9

Q: The weights of Ajax salmon are approximately normally distributed with a mean of 34 pounds and a…

A: GivenMean(x¯)=34standard deviation(σ)=8

Q: A schoolteacher average concentration of 5.4 pCI/L with a standard deviation of 1 pCi/L. Calculate…

A:

Q: random sample of 81 eighth grade​ students' scores on a national mathematics assessment test has a…

A: Given: Sample size (n) = 81 Sample mean x¯=290 Hypothesized mean μ= 285 Population standard…

Q: A successful basketball player has a height of 6 feet 4 inches, or 193 cm. Based on statistics from…

A: Here, z -score is 2.66. The z -score is Z=(X-µ)/σ

Q: The distribution of head circumference for full term newborn female infants is approximately normal…

A:

Q: The combined SAT scores for the students at a local high school are normally distributed with a mean…

A: Given : The combined SAT scores for the students at a local high school are normally distributed…

Q: The heights of the peach trees in an orchard are normally distributed with a mean of 12.5 feet and a…

A:

Q: A random sample of 87 eighth grade​ students' scores on a national mathematics assessment test has a…

A:

Q: f the value of adult male cholesterol is a normal distribution with a mean of 198 and a standard…

A: The question is about normal dist. Given : Mean of cholesterol value of adult male ( μ ) = 198 Std.…

Q: The weight of oranges growing in an orchard is normally distributed with a mean weight of 7.5 oz.…

A: A Z-score is a numerical measurement that describes a value's relationship to the mean of a group of…

Q: A successful basket ball player has a height of 6 feet 4 inches. Based on statistics his height…

A: As given, The basketball player has a height of 6 feet 4 inches and when his height is converted to…

Q: A random sample of 85 eighth grade students' scores on a national mathematics assessment test has a…

A: It is given that, Sample size is n= 85  Sample mean is x̄= 292 Population deviation deviation is σ=…

Q: The mean composite score for seniors who took the SAT in 2010 was 1068. If the standard deviation…

A: From the provided information, Mean (µ) = 1068 Standard deviation (σ) = 100

Q: A random sample of 77 eighth grade​ students' scores on a national mathematics assessment test has a…

A: Given information: μ=275, σ=32n=77, α=0.14x¯=282 a) Null hypothesis: H0 : μ=275  Alternative…

Q: Find the indicated IQ score. The graph depicts IQ scores of adults, and those scores are normally…

A: The provided information are: Population mean (µ) = 100 Population standard deviation (σ) = 15…

Q: to 29-year old woman is 64.1 inches tall, with a standard deviation of 3.9 inches. Who is relatively…

A:

Q: Assume that IQ scores are normally distributed with a mean of 100 and standard deviation of 15. If a…

A: It is given that the mean is 100 and the standard deviation is 15.

Q: The annual precipitation amounts in a certain mountain range are normally distributed with a mean of…

A: Mean(µ) = 88Standard deviations (σ) = 10 X ~ N (µ, σ )= N(88, 10)

Q: The mean price of a certain brand of shoes is 100 NIS, with standard deviation of 15 NIS. The…

A: Given,mean(μ)=100standard deviation(σ)=15and the company had a promotion of a 20% discount on any…

Q: The scores for an intelligence test are normally distributed with a mean of 102 and a standard…

A: Obtain the minimum test score necessary to place someone in the upper 9​% of the​ population. The…

Q: The weights of a certain type of steer follow a Normal model with a mean weight of 1191 pounds and a…

A: Given,  mean(μ) = 1191 standard deviation(σ) = 54

Q: Keenan scored 80 points on an exam that had a mean score of 77 points and a standard deviation of…

A: From the provided information, For Keenan: Mean (µ) = 77 Standard deviation (σ) = 4.9 For Rachel:…

Q: 6. The mean value of a 2005 Honda Accord is $8200, with a standard deviation of $1300: a. Give the…

A: Given data,Mean μ=8200sd σ=1300

Q: A random sample of 85 eighth grade students' scores on a national mathematics assessment test has a…

A: