Suppose a sample of O-rings was obtained and the wall thickness (in inches) of each was recorded. Use a normal probability plot to assess whether the sample data could have come from a population that is normally distributed.  0.157, 0.182, 0.206, 0.217, 0.218, 0.236, 0.238, 0.248, 0.257, 0.264,0.275, 0.284, 0.283, 0.303, 0.321, 0.340 Using the correlation coefficient of the normal probability plot, is it reasonable to conclude that the population is normally distributed?

Q: Suppose the annual rainfall in the Southern California (in inches) is normally distributed with mean…

A: The mean is 10 and the variance is 25. The standard deviation is √variance=√25=5.

Q: A test in statistics for decision making course was administered to 2500 MBA students. The test…

A: Let us assume X=the score Given that X follows a normal distribution with mean=42 and variance=576.…

Q: from

A: Let X be the random variable such that  time that it takes for bananas to spoil x̅: Sample mean of…

Q: Suppose a brewery has a filling machine that fills​ 12-ounce bottles of beer. It is known that the…

A: Mean = 12.33 Standard deviation = 0.04

Q: The data set is the body mass index of 20 men. Use technology to obtain a histogram and normal…

A: Using Excel, the frequency table can be obtained as; Enter the data of amount into spreadsheet. Go…

Q: Full data setO Uncarpeted 11.3 A researcher wanted to determine if carpeted or uncarpeted rooms…

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Q: In a normal distribution, find the mean if the standard deviation is 100, and 70.19% of the total…

A: Given that the standard deviation is 100 and 70.19% of the total area lies to the right of 500. That…

Q: O A. No. The correlation between the expected z-scores and the observed data, does not exceed the…

A: z-score is the value decreased by mean, divided by the standard deviation. The z-score for a sample…

Q: A pharmaceutical company makes tranquilizers. It is assumed that the distribution for the length of…

A:

Q: In an certain species of newt, offspring are born either green or black. Suppose that 45% of these…

A: The mean of the sampling distribution of the sample proportion. The standard deviation of the…

Q: A test score in the top 2% is required. The test is designed to have a mean of 100 and a std dev. of…

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Q: In a region the energy consumption for a family per month averages 1145 kWh and one standard…

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

Q: According to the Carnegie unit system, the recommended number of hours students should study per…

A: Given data: n = 12 Significance level  = 0.01

Q: A researcher wants to know if there is a difference between the mean amount of sleep that people get…

A: Given that By using excel anova

Q: Are statistics students' study hours less than the recommended number of hours per unit? The data…

A: a.   In this case, the sample size is less than 30 and the population standard deviation is not…

Q: randomly selected sorority sisters. Brothers: 11 885 13 4 4 7 5 7 12 4 3 Sisters: 8 2 3 6 2 4 6 6…

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Q: Suppose that you draw a random sample from a population where you know the population mean is 36 and…

A:

Q: The distance travelled to work by the employees of PUP may be modelled by a normal distribution with…

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Q: The following data represent the pH of rain for a random sample of 12 rain dates. A normal…

A: Given,   Sample size = 12   Since the population standard deviation is not known, use t-distribution…

Q: In an certain species of newt, offspring are born either green or black. Suppose that 60% of these…

A: Given Information:Sample proportion() = 60% =0.6Sample size (n) = 185

Q: Assume the probability that a maple tree at age 5 grows less than 170 cm is equal to 0.25. If the…

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A: Mean is the best measure of Central tendency. It is the average of a group of numbers. In other…

Q: In an certain species of newt, offspring are born either green or black. Suppose that 60% of these…

A: Given Information: p = 60%  Sample size (n) = 144

Q: Construct a normal probability plot and boxplot for the set of data given below: 3 6 8 10 13 16 18

A: by using R software to draw the normal probability plot and box plot

Q: In an certain species of newt, offspring are born either green or black. Suppose that 50% of these…

A: Here sampling distribution of proportion is normal because sample size is too large

Q: ach month, the city of Accra generates an average of 28 pounds of waste. Assume the variable is…

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Q: A sample of 10 different parts are tested using a low temperature level and another sample of 10…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

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Q: A sample of 10 different parts are tested using a low temperature level and another sample of 10…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.