Good morning  Dear Sir/Madam  Please see below question,thank you For a competitor analysis, companies are ranked with values that happen to follow a normal distribution with standard deviation 6 and mean 34. a) What is the probability that the value is more than 40. b) What is the probability that the value is between 30 and 40.

Q: The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation…

A: (a)   Obtain the probability that pregnancy will last 307 days or longer. The probability that…

Q: Which of the following is a TRUE statement about hypothesis testing? Whether to use a one-sided or a…

A: The question related to hypothesis testing.Hypothesis testing is a method of statistical inference…

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Q: ii, 20 coins are flipped each with a probability of 0.5 that it will be heads. What is the standard…

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Q: A quality-control manager was concerned about variability in the amount of an active ingredient in…

A: The sample size is For next situation,The sample size is The objective is to find the probability of…

Q: Explain in detail what a normal probability plot is and how it is used to assess the normality of a…

A: Normal probability plot:The plot for the observed values of a variable versus the normal scores is…

Q: The mean of a normal probability distribution is 120 the standard deviation is 10. About what…

A:

Q: Consider the prices have a Normal Distribution. Price mean = 75 Price S.D = 8 What is the…

A:

Q: The amount a household spends on groceries per week is normally distributed with a mean of $250 and…

A: given data, normal distributionμ=250σ=45n=121probability the sample mean spent on groceries per week…

Q: Tiger Woods hits an average driver 287.2 yards with a standard deviation of 24.6 yards. What is the…

A: The probability value is calculate by means of standard normal variate with the random variable,…

Q: Facebook provides a variety of statistics on its Web site that detail the growth and popularity of…

A: X~N(mean=28, sd=5)

Q: on or 2.5. a. Fill out the following curves for each distribution. Be sure to label your set of…

A: It is given that • For SAT verbal testMean = 460Standard deviation = 110• For ACT English test:Mean…

Q: The National Health and Nutrition Examination Survey (NHANES) reported that in a recent year, the…

A: Given information Mean (µ) = 202 Standard Deviation (σ) = 42 Sample size (n) = 49   Z score is given…

Q: The average time Filipino spent in streaming site is 15 hours per week. Suppose a sample of 65…

A: Define the random variables, Xi : Amount of time spent in streaming site. i=1,2,3,...,65 Given, µ=…

Q: Part D please

A: Here X has normal distribution with mean of 75847 and standard deviation of 33800 We have to find…

Q: Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the…

A: Solution: It is given that, Population mean, 70 Standard deviation, 5 Given that Cody took his first…

Q: On the Gulf Freeway at 7:00 AM, the average travel time from Beltway 8 to Downtown is 29.5 minutes…

A: We have given that the random variable X i.e. travel time is normally distributed with average(mean)…

Q: The Congressional Budget Office reports that 36% of federal civilian employees have a bachelor's…

A: Given: Number of employees (n) = 115

Q: Please gives step-by-step solution for the below homework question. I need this answer quickly.…

A: From the given information, The target process time for manufacturing one brick is 7 minutes+0.2…

Q: Direction: Compute and Illustrate the distribution of the mean. 1. The average price of a computer…

A: Given,sample size(n)=27mean(μ)=789standard deviation(σ)=348

Q: LightCastle Partners, a Bangladeshi business management consultant employs a large number of data…

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Q: Write any five properties of normal distribution.

A: The normal distribution is also called Gaussian distribution. The distribution is widely used in…

Q: High school girls average 80 text messages daily. Assume the population standard deviation is 15…

A: Given information:

Q: TRUE OR FALSE: A z-score indicates the number of standard deviations a data value is ab below the…

A: Standardized z-score: The standardized z-score represents the number of standard deviations the data…

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: Exhibit 9-22 The manager of a grocery store has taken a random sample of 36 customers. The average…

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Q: d the probability that a score is from 185 to 210. d the probability that a score is from 160 to…

A: As per your request I have solve only (d) option Given Mean =201 Standard deviations=21

Q: The National Health and Nutrition Examination Survey (NHANES) reported that in a recent year, the…

A: Solution: Let X be the cholesterol level. From the given information, µ=202 and σ=42.

Q: amount of money an American spends on Holiday presents is normally distributed with a mean of $650…

A: given data, normal distributionμ=$650σ=$80probability that a randomly selected American spends less…

Q: The amount of money an American spends on Holiday presents is normally distributed with a mean of…

A: Given Mean=650 Standard deviations=80

Q: makes a distribution a normal distribution?

A: Properties of normal distribution  a) The mean , median and mode of a distribution is same it is…

Q: CAN SOMEONE HELP ME SOLVE THIS WORD PROBLEM?

A: It was stated that for a standardized psychology examination intended for psychology majors, the…

Q: Brenda has collected data to find that the finishing times for cyclists in a race has a normal…

A: Given the finishing time for cyclists in a race has normal distribution with mean 143 minutes and…

Q: Solve the problem. Assume that mountain lions' weights are normally distributed with a mean of 62.6…

A: We have given that,  X be the random variable from normal distribution with mean (μ) = 62.6 ,…

Q: . The level of blood glucose and diabetes in adults are related. Let X be a random variable measured…

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Q: - 0.287). This means ance that a pair of rande

A: here we can see that administrator found no significant difference between mean GPA for male and…

Q: In an certain species of newt, offspring are born either green or black. Suppose that 55% of these…

A: Proportion of offspring born green , p = 0.55 sample size, n = 125 It can be modeled by Normal…

Q: TV sets: According to the Nielsen Company, the mean number of TV sets in a U.S. household in 2013…

A: given  mean μ=2.24 standard deviation σ=1.2 n=80

Q: National park services, a bureau of the US government responsible for park management, is interested…

A: For current year: The mean can be obtained as: Thus, the mean is 74.56. Arranging the data set into…

Q: When we draw conclusions from data, we usually state them in terms of probbailities. Express a 95%…

A: Here Confidence Interval gives the range of the population parameter .And It is found using sample…

Q: A professor knows that her statistics students' final exam scores have a mean of 79 and a standard…

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.