The Virginia Cooperative Extension reports that the mean weight of yearling Angus steers is 1152 pounds. Suppose that the standard deviation is 84 pounds.  What’s the actual weight of an animal whose z-score is -1.5?

Q: Statewide, the average score on the verbal portion of the college entrance exam is 453, with a…

A: From the provided information, Sample size (n) = 137 Sample mean (x̅) = 502 Population standard…

Q: According to Chebyshev's rule, within 10 standard deviations from the mean, lies at least of any…

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Q: During 1 week, an overnight delivery company found that the weights of its parcels were normally…

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Q: If the height of 1000 students in a University Campus closely follows a normal distribution with a…

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Q: Assume that the distribution of systolic blood pressure of adult men has a mean of 110 mmHg and…

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Q: On a nationwide math test, the mean was 63 and the standard deviation was 10. If Roberto scored 85,…

A: GivenMean(μ)=63standard deviation(σ)=10score(x)=85

Q: Mary Bartel, an auditor for a large credit card company, knows that, on average, the monthly balance…

A: The standard deviation is 56. Mary audits 50 accounts. That is n=50

Q: Students at Arrowhead High School took a Math test with a mean of 120 and a standard deviation of…

A: Let X be the random variable of normal distribution with mean 120 and standard deviation 25 Let Z be…

Q: A company finds that for its 12 ounce cans of soda, the actual amount of soda inside is Normally…

A: Solution-: Given: μ=12,σ=0.25 We find x value such that P[X<x]=0.15

Q: What is the difference between deviation and standard deviation?

A: Before we know the difference between deviation standard deviation, we should know about both these…

Q: On a spelling test, the standard deviation is equal to 0.94. What does this mean

A: We know that the Standard deviation tells us that how much data is scattered around the mean value…

Q: A study determined the average amount a person spends on candy during Halloween is $80 with a…

A: Here, μ=80 and σ=15

Q: Find the mean and standard deviation for the individualized instruction scores.

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Q: If the range of a data set is 56, find the approximate value of the standard deviation, using the…

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Q: If a data set has a mean of 80 and a standard deviation of 10, calculate + 1.5 standard deviations

A: Here, the data set has a mean of 80 and a standard deviation of 10.

Q: Many families in California are using backyard structures for home offices, art studios, andhobby…

A: Let us consider X be a random variable which denotes the cost of shingled backyard structure which…

Q: What is the difference between what the z score measures and what the standard deviation measure?

A: z score is standard score and the formula for finding z score is,

Q: The weight of a division I college football player has a mean of 255lb and a standard deviation of…

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Q: In an all boys school, the heights of the student body are normally distributed with a mean of 69…

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Q: A department store has daily mean sales of $ 28,372.72. The standard deviation of sales is $2000. On…

A: Given information- Mean sales, μ = $ 28,372.72 Population standard deviation, σ = $2000 Tuesday’s…

Q: what is the mean and standard deviation?

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Q: Define the term standard deviation?

A: Standard deviation: The standard deviation indicates by how much each observation differs from a…

Q: The Virginia Cooperative Extension reports that the mean weight of yearling Angus steers is 1152…

A:

Q: What is the lowest standard deviation value ?

A: Standard deviation; The standard deviation indicates by how much each observation differs from a…

Q: In an all boys school, the heights of the student body are normally distributed with a mean of 71…

A: Solution: Let X be the height of the student boy. From the given information, X follows normal…

Q: For borrowers with good credit scores, the mean debt for revolving and installment accounts is…

A: Given Information : For borrowers with good credit scores, the mean debt for revolving and…

Q: In a survey, 35 people were asked how much they spent on their child's last birthday gift. The…

A: Confidence interval is a concept closely related to interval estimation. Confidence interval is…

Q: The state of California has a mean annual rainfall of 22 inches, whereas the state of New York has a…

A: Given: For California: Mean,μ=22Std deviation,σ=4Sample size, n=30 For New York: Mean,μ=42Std…

Q: Describe  the scores in a sample  that has a standard  deviation of zero

A: If the standard deviation is zero there will be no dispersion of scores from the Mean. It means that…

Q: The advertised weight is 2.13 ounces , the mean is 2.2 ounces and the standard deviation is 0.04…

A: P(X < 2.13) = = P(Z < -1.75)= 0.0401 or 4.01%

Q: In the province of Iloilo,the set of recorded midday temperature readings for the month of February…

A: Given, 10.5% of recorded temperature readings were under 28°C, and that 33% were above 30°. The…

Q: If the mean is two, and the standard deviation is one, would a value of five be considered…

A: Unusual values : Unusual values should be lie outside the 2 standard deviation from the mean.   i.e.…

Q: Calculate the standard deviation for the data set below 1, 3, 4. 5, 6, 9, 12, 16

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: An agronomist measured the height of 134 canola plants. The mean height was 214 cm and the standard…

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Q: As reported in Runner's World magazine, the times of the finishers in the New York City 10- km run…

A: Percentile : Percentile is the number such that certain percentage of the fall below that values.…

Q: If the mean speed for a major league fast ball is 90 miles per hour and the standard deviation is 5…

A: Given Information: Mean = 90  Standard deviation = 5 Standardized score for a pitch that is 97 miles…

Q: In a survey of women in Canada, the mean height was 65 inches with a standard deviation of 3 inches.…

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Q: The US mean height for adult men is  = 68.5 inches, with a standard deviation of  = 3 inches. The…

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Q: The starting salary for a computer programmer major has a mean of $39,269 and a standard deviation…

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Q: The daily sales at a convenience store have a mean of $1280 and a standard deviation of

A: As given, the daily sales at a convenience store have a mean of $1280 and a standard deviation of…

Q: Find the mean and standard deviation of the original set of data.

A:

Q: The providence health maintenance organization wants to establish a criterion for recommending…

A: Given Information Mean (µ) = 178.1 Standard deviation (σ) = 40.7

Q: According to the Department of Education the mean number of hours college students spend studying…

A:

Q: A researcher in Des Moines, Iowa sampled 56 households and found the mean number of puppies per…

A: # sample size n=56  population mean mu=3.03  standard deviations=1.5  then to find 62nd percentile…

Q: According to Chebyshev's Rule, at least what percent of observations must be within 2.5 standard…

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Q: Based on the relationship between the mean, standard deviation, and minimum time, is it reasonable…

A: HERE WE CAN USE THAT minimum value is approx 3 times standard deviation away from mean.

Q: Rosencrantz and Guildenstern are on a weight-reducing diet. Rosencrantz, who weighs 178 lbs.,…

A: Given data,For RosencrantzMean =145sd=15Weight is x=178For GuildensternMean =165sd=20Weight is x=204

Q: If the mean of a set score is 65 and the standard deviation is 15, what is the zscore of a person…

A: The z-score of a random variable x is defined as follows: z = (x – µ)/σ. Here, µ and σ are the mean…