Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.11 and a standard deviation of 1.46. Using the empirical rule, what percentage of American women have shoe sizes that are no more than 11.03? Please do not round your answer.

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 103 and a standard deviation…

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Q: Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.11 and a…

A: Consider,X be a random variable that represents the shoe size of American women that has a…

Q: Suppose that shoe sizes of American women have a bell shaped distribution with a mean of 8.04 and a…

A: Given that  Mean = 8.04 , Standard deviation = 1.53

Q: A 4 year college will accept any student ranked in the top 60% of a national exam. If the test…

A: From the given information,Mean (µ) =600Standard deviation (σ) = 100Let the test score be a x which…

Q: A mandatory competency test for high school sophomores has a normal distribution with a mean of 400…

A: Given data Mean = 400 Standard deviation = 100 To find the top 3%, we need to find the z-value…

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 103 and a standard deviation…

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Q: The waist girth of 2,500 employees in a large company follows the normal distribution with mean of…

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Q: assume that the mean weight of 1 year-old girls in the Philippines is normally distributed with a…

A: Let X denotes the weight of 1 year-old girls in the Philippines which follows normal distribution…

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 100 and a standard deviation…

A: The mean is 100 and the standard deviation is 15.

Q: Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.478.47…

A: The random variable shoe size follows normal distribution. The population mean is 8.47. The…

Q: What is the degree of freedom between groups? What is the degree of freedom within groups? What is…

A: The provided information is There are 10 families in Makati and 12 families in Quezon. a=10, s=12…

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 100 and a standard deviation…

A: Mean = 100 Standard deviation = 15

Q: Suppose that grade point averages of undergraduate students at one university have a bell-shaped…

A: According to the given information, we have Mean = 2.52 Standard deviation = 0.38

Q: When Tariq goes bowling, his scores are normally distributed with a mean of 110 and a standard…

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Q: the Champlain College pretends that average rent in Lennoxville for a 2 bedrooms apartment is $500.…

A: H0 : ? =500 H1 : ? ≠500 Population mean = ? = 500 Sample S.D = s =10 Sample size = n =41…

Q: Suppose the prevalence of type II diabetes in a community is 36%. Researchers want to sample 16…

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Q: Suppose the average golfer drives the ball around 225.55 yards with a standard deviation of 8.82.…

A: Assume that the random variable x denotes the distance of balls drove by the golfer.

Q: Suppose the number of Covax and Pfizer vaccine bought by the Philippine government are normally…

A: Let, X=the number of vaccine μ =mean σ = sd

Q: An economist would like to estimate the mean amount of money that a family spends to within $45. If…

A: GivenMargin of Error(E)-45standard deviation(σ)=190α=1-0.93=0.07α2=0.035zα2=1.8119      (from z…

Q: Students took a college math placement exam with a mean of 200 and a standard deviation of 12. Using…

A: Given that, μ=200σ=12

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 100100 and a standard…

A: Empirical rule: About 68% of data lies within the first standard deviation of the mean. About 95%…

Q: Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.358.35…

A: The provided information are: Population mean (µ) = 8.35 Population standard deviation (σ) = 1.46

Q: Assume that the heights of men applying for military academy training are normally distributed with…

A:

Q: Suppose that blood chlorine concentration (mmol/L) has a normal distribution with mean=98 and…

A: Given that blood chlorine concentration has a normal distribution with, Mean = 98 Standard deviation…

Q: A researcher would like to estimate the mean amount of money that a family spends to within $28. If…

A:

Q: Suppose the scores of students on an exam are normally distributed with a mean of 337 and a standard…

A: Let X be the random variable from normal distribution with mean (μ) = 337 and standard deviation (σ)…

Q: Suppose that grade point averages of undergraduate students at one university have a bell-shaped…

A: From the provided information, Mean (µ) = 2.61 Standard deviation (σ) = 0.44

Q: based on this graph, would the median be greater than the mean? or the mean gretaer than the median?…

A: Here data is negatively(right) skewedmore data at higher end

Q: A dean at BUC claims that the average age of the students in this college is 25. A random sample of…

A: Note: Thank you for the question. Since it is not mentioned the standard deviation is population…

Q: It has been reported that the mean score for a student who takes the certain test is 80 with the…

A: Given mean = 80 standard deviation, σ = 9 sample size, n = 100

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 97 and a standard deviation of…

A:

Q: A researcher is conducting a study to determine the mean trough dosage of medication for a…

A: From the provided information, Population standard deviation (σ) = 40 mg Margin of error (E) = 10 mg…

Q: Suppose that grade point averages of undergraduate students at one university have a bell-shaped…

A: Empirical rule: The probability that the observation under the normal curve lies within 1 standard…

Q: Lydia Hayward is an external research consultant hired by FirstCard, a major credit card company, to…

A: Given information:Denote the population mean total credit card balance for adults 25 to 34 with a…

Q: A recently admitted class of graduate students at a large state university has a mean GRE verbal…

A: We have given that  Mean=650  Standard deviation=50 X=490

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 100 and a standard deviation…

A:

Q: Suppose that IQ scores have a bell shape distribution with a mean of 105 and a standard deviation at…

A: Solution: Let X represent the IQ scores of students.  The distribution of X is bell shape…

Q: The combined math and verbal scores for females taking the SAT-I test are normally distributed with…

A: Given that  mean of 998 and a standard deviation of 202 P(x<875 )=?

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A: let X be the distance of fly balls hit to the outfield X~N(mu=260,sigma^2=50^2) n=49 we want to find…

Q: What is the value of the F-statistic if one sample has a standard deviation of 0.00436 and another…

A: In this context, the one sample has a standard deviation of 0.00436 and another sample has a…

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 95 and a standard deviation of…

A: Given: μ=95σ=15

Q: Suppose that grade point averages of undergraduate students at one university have a bell-shaped…

A:

Q: The admission committee of AUCA enrolls 76% of those who took the exam. If the scores follow a…

A:

Q: Suppose the number of Covax and Pfizer vaccine bought by the Philippine government are normally…

A: Let, X=the number of vaccine μ =mean σ = sd

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 96 and a standard deviation of…

A: 17. Empirical rule (68 – 95 – 99.7 rule): For a bell shaped distribution (normal) the empirical rule…

Q: Using the empirical rule, what percentage of accused scores are between 70 and 138?

A: Let X denote the IQ scores. Given that X follows N(mean = 104, SD = 17).

Q: 2. If the scores on an aptitude test are normally distributed with mean 500 and standard deviation…

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Q: An economist would like to estimate the mean amount of money that a family spends to within $35. If…

A:

Q: According to the USDA, the mean intake of calories of males 20-39 is 2716 with a standard deviation…

A: It is given that the mean and standard deviation are 2,716 and 72.8, respectively. The sample size n…

Q: What percentage of teenagers sleep less than 9 hours?

A:

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.