Starting salaries of 100 college graduates who have taken a statistics course have a mean of $42,930 and a standard deviation of $9,398. Using 99% confidence level, find both of the following: A.    The margin of error E B.    The confidence interval for the mean μ: _______<μ<_______

Q: Describe a distribution of scores that has a mean of M 5 30 and a standard deviation of SD 5 6.…

A: From the given information we describe the distribution.

Q: Assume that a distribution of 10000 scores is normally distributed with a mean of 90 and a standard…

A:

Q: The mean score on a driving exam for a group of​ driver's education students is 60 ​points, with a…

A: Solution:From the given information, k value is 22, standard deviation of points is 4 and mean…

Q: The distribution of the IQ (Intelligence Quotient) is approximately normal in shape with a mean of…

A: Given information: μ=100σ=15 Standard deviation rule: 68% of the data lies between μ-σ,μ+σ95% of the…

Q: nd mean and standard deviation if n and p are 10 and 0.2 respectively.

A:

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

A:

Q: K Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in…

A: n1=n2=11, x¯2=91.088, s2=10.092

Q: Consider a data set that has a mean of 17 and a standard deviation of 5.7. According to Chebyshev's…

A: Chebyshev's Theorem: Let X be an integrable random variable with finite expected value μ and finite…

Q: IQ scores are standardized to produce a normal distribution with a mean of µ = 100 and a standard…

A: Solution: Let X be the IQ score. From the given information, X follows normal distribution with mean…

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 263.1…

A:

Q: ssume the average price for houses in a certain country is $294,000 with a standrad deviation of…

A: The coefficient of variation (CV) is a measure of relative variability. It is the ratio of the…

Q: ts luxury sedan is at least 23 miles per gallon (mpg). You believe the claim is incorrect and find…

A:

Q: Assume that a distribution of 10000 scores is normally distributed with a mean of 90 and a standard…

A:

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

A: We solve this in step 2

Q: cores for men on the verbal portion of the​ SAT-I test are normally distributed with a mean of 509…

A: The mean is 509 and the standard deviation is 125.

Q: A population data has set a mean of 81 and a standard deviation of of 5.2 Find the z score for each…

A: The z-score formula is given by zx=x−x¯s (A) Consider the data x=75x¯=81s=5.2 Substitute these value…

Q: A large group of students took a statistics test.               The mean score, from the scale of…

A:

Q: Assume that women's heights are normally distributed with mean 64.2 inches and standard deviation…

A: Let X be the women's heights which follows normal distribution with mean 64.2 inches and standard…

Q: Compute the z-score for the data value x with the given values for the mean and standard deviation.…

A:

Q: A set of data items is normally distributed with a mean of 200 and a standard deviation of 50. Find…

A:

Q: A normal population has mean u=56 and Standard deviation o=8. What is the 85th the population?…

A: We have given that  Mean, μ = 56 Standard deviation, σ = 8

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: the average grade is 84 with a standard deviation of 4. What is each grade for -1 2 0 1.5 -1.25

A: Given Mean μ=84Standard deviation σ=4 The formula for Z score isZ=X-μσX=Z×σ+μ

Q: The mean of the sample means equals The population standard deviation. The population mean. The…

A: As per central limit theorem Mean of sample means  is x̅ = μ x̅ = sample mean μ = Population mean

Q: Lions gate produces and distributes about 30 movies per year. On average ,these movies rake in about…

A:

Q: 18. Calculate the ±3 standard deviation range for the mean of 15.7 and S

A: Mean=15.7 Standard deviation=4.2

Q: standar For Jesse 13. a. Find the mean and standard deviation of a normal distribut of marks in an…

A: Note: we are using standard normal distribution table.

Q: Assume that Math test scores are normally distributed with a mean of 200 and a standard deviation of…

A: The provided information is  The mean and standard deviation is  µ=200 σ=40 P(X&lt;120)=?…

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

A: Mean, X¯ = 70.1Standard deviation = 11.3Sample size, n = 135μ = 69

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

A: Mean = 100Standard Deviation = 15Calculating the z-value corresponding to 60th percentile i.e. p =…

Q: A distribution of values is normal with a mean of 190 and a standard deviation of 5. Find the…

A: GivenMean(μ)=190standard deviation(σ)=5

Q: Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in…

A: The data shows the IQ scores of medium lead level and high lead level. Let μ1 be the population mean…

Q: stimate the absolute standard deviation and the coefficient of variation for the results of the…

A: Given that the value of y is split into two halves. y=1.09±0.02×10-8-3.6±0.2×10-9 One needs to find…

Q: la: Find the best fitting line though six points and Standard Deviation: 0.5 1.5 2 2.5 1.5 3 4.5 7.5

A: Given:   x y 0 0 0.5 1.5 1 3 1.5 4.5 2 6 2.5 7.5

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

A:

Q: Suppose baby kittens' weights have a mean of 11.6 and a standard deviation of 1.5. The z-score tells…

A: Ans#- Given,          Mean μ = 11.6  and Standard deviation σ = 1.5         Use formula  z = x - μσ…

Q: The frequency distribution was obtained using a class width of 0.5 for data on cigarette tax rates.…

A: Given,The actual mean, μ = 1.667The actual standard deviation, σ = 1.073Frequency distribution table…

Q: The annual income for a sample of 450 part-time students is normally distributed with a mean income…

A: Given that: Population mean, μ=31000 Population standard deviation, σ=3000 Sample size, n=450