The monthly rents for studio apartments in a certain city have a mean of $1,020 and a standard deviation of $170. Random samples of size 60 are drawn from the population and the mean of each sample is determined. Rc the answers to the nearest hundredth. ...

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A:

Q: For a normally distributed population with a mean of 35 and a standard deviation of 7.5 find P(X…

A: Solution:From the given information, normal distribution with population mean as 35 and standard…

Q: The prizes awarded to winning contestants on a long-running television show have a mean of $9,400…

A: We have to find mean and sd.

Q: Suppose that the sample dataset of July 1 temperatures consisted of 64 observations and that these…

A: given data standard deviation s = 4 sample size n = 64

Q: A standard I.Q. test produces normally distributec 13 with a mean of 104 and a standard deviation of…

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Q: A random sample of 40 students has a mean annual earnings of $3120 and assume that the population…

A: The margin of Error (MoR): It is the Range of values that has the sample statistics in the…

Q: For a population with a mean of μ = 26 and a standard deviation of σ = 14, find the z-score…

A:

Q: 1. The scores on a test have a mean of 100 and a standard deviation of 15. If a personnel manager…

A: Formula : Z =(X - μ)/σ

Q: If the standard deviation of a population is 20 and we take a sample of size 16 from which to…

A: Given information Standard deviation σ = 20 Sample size n = 16

Q: Given that the mean for a data set is 24.8 and the standard deviation is 2.3, find the z-score of…

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Q: On this assignment, round all answers (when necessary) to exactly three decimal places. The numbers…

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Q: The distribution of room and board expenses per year at a four-year college is normally distributed…

A: We want to find z score  If Z Value lie outside (-3, 3) then it will be unusual.

Q: For the Reese's pieces scenario, compute the standard deviation of sample taking if the size of the…

A: Answer - For the Reese's pieces scenario, the size of the samples is n =  200 and the proportion of…

Q: For the test described in Scenario A, 32 apartments were measured and the sample mean found to be…

A: Given that  Sample size n =32 Sample mean =1237 Standard deviation =45

Q: The results of a calculus exam are normally distributed with a mean of 76 and a standard deviation…

A: Obtain the Z-score for the random variable that X equals 70. The Z-score for the random variable…

Q: The results of a calculus exam are normally distributed with a mean of 76 and a standard deviation…

A:

Q: For a population with a standard deviation of  = 20, how large a sample is necessary to have a…

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Q: Given that the variance for a data set 1.20, what is the standard deviation?

A: The standard deviation is calculated by taking the square root of variance. Variance is given as…

Q: In the accompanying display (where both curves are placed on the same number line), which has the…

A: The display shows the normal curves for A and B in same number line.

Q: In an exam for a statistics class, the class average is 68 with a standard deviation 4. If a student…

A: Given mean μ= 68, standard deviation σ= 4 Let X: score of the students = 75

Q: A set of data is found to have a sample standard deviation of 25. Suppose 9 were added to each of…

A: Given: s=25 9 is added to each of the values.

Q: If an entire population with μ = 60 and s = 8 is transformed into z-scores, then the distribution of…

A: Given X~N(μ,σ) population mean μ=60 population standard deviation σ=8 The formula for a…

Q: In a small company of 10 people the salaries are as follows: 5 people earn $25,000, 3 earn $27,000,…

A: Questions   find mean (x→) and standard deviation (σ).   Data Given - 5 people earn $25,000   3…

Q: with a sample average of 80 and a raw score of 76. Would you prefer a standard deviation of s=2 or…

A: A standard deviation of s=2 is preferred.

Q: A data set of home sales prices in an area has an average selling price of $350,000 with a standard…

A: The z score for x = 390000 is calculated as:

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 261 days…

A: Givenmean(μ)=261standard deviation(σ)=17sample size(n)=56

Q: In English class the final exam grades average 78 with a stanard deviation of 12 and in a…

A: Given data,   For English exam, μ=78σ=12Score x=84   For mathematics exam, μ=72σ=15Score x=82

Q: What is the value of k?   What is the standard deviation?

A: Here use basic of discrete probability distribution

Q: A given distribution has a population mean, μ, of 140 and a population standard deviation, σ, of 7.…

A: From the given information,   Mean = 140 Standard deviation = 7   The objective is to find the…

Q: E (T; – T)² = 2535. in

A: Here's the explanation :- The standard deviation is a measure of the amount of variation or…

Q: Suppose the people living in a city have a mean score of 35 and a standard deviation of 9 on a…

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Q: A doctor measured serum HDL levels in her patients, and found that they were normally distributed…

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Q: If the mean score on a math quiz is 12.6 and 38.2​% of the students in your class scored between…

A: Mean = 12.6 area between 11.1 and 14.1 is 38.2%

Q: Suppose annual salaries for sales associates from Hayley's Heirlooms have a bell-shaped distribution…

A: It is given that the annual salaries are distributed bell shaped (approximately normal) with mean of…

Q: The results of a calculus exam are normally distributed with a mean of 76 and a standard deviation…

A:

Q: For a population with a mean of μ= 40 and a standard deviation of σ= 6, find the z-score…

A: From the provided information, Population mean (µ) = 40 Standard deviation (σ) = 6 a) Sample size…

Q: Suppose the people living in a city have a mean score of 35 and a standard deviation of 10 on a…

A: Note: Hey, since there are multiple subparts posted, we will answer first three subparts. If you…

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 268 days…

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

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A: A continuous random variable X follows Normal distribution with parameters μ and σ2 if its…

Q: Given: The length (X) of reticulated pythons follows a normal distribution with mean 16 feet and a…

A: Note: According to Bartleby, expert solve only one question and maximum 3 subpart of the first…

Q: A doctor measured serum HDL levels in her patients, and found that they were normally distributed…

A: Given mean= 63.3  And standard deviation = 3.9  a)

Q: John beale of stanford, ca, recorded the speeds of car driving past his house, where the speed limit…

A: Given: μ=23.84σ=3.56 a) The Z score is obtained as below: z=x-μσ=20-23.843.56=-3.843.56=-1.08 Thus,…

Q: A sample of n = 25 scores has a mean of M = 83 and a standard deviation of s = 15.   Explain what is…

A: In this case, the sample size is n = 25, the sample mean is M = 83 and the sample standard deviation…

Q: Assume that the heights of adult puffins are normally distributed, with a mean of μ=μ= 15.9 inches…

A: Given data, μ= 15.9  σ= 2.7  n=28 mean of the distribution of x¯  =?

Q: The mean annual incomes of certified welders are normally distributed with the mean of $50,000 and a…

A: Given;  x be the annual income of certified welders are normally distributed with mean =$50000and…

Q: Suppose that the scores on a statewide standardized test are normally distributed with a mean of 60…

A: