Two different species of trees have heights that are approximately normal in distribution.  Tree A has a mean of 36 feet and a standard deviation of 3 feet.  Tree B has a mean of 52 feet with a standard deviation of 7 feet.  Suppose one tree of type A is 41.4 feet tall and one tree of type B is 62.1 feet tall.   Which tree is taller relative to the species?

Q: A particular fruit's weights are normally distri grams. The heaviest 14% of fruits weigh more than…

A: Given: Mean, μ=448 Standard deviation, σ=21 Using standard normal table: P (Z>z)=14%1-P…

Q: The heights of adult men in America are normally distributed, with a mean of 69.7 inches and a…

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Q: A dot plot of the speeds of a sample of 50 cars passing a policeman with a radar gun is shown below.

A: Hello! As you have posted 2 different questions, we are answering the first questions. If case you…

Q: State the variable. What is the z score for 52 cm? What is the z-score for 74 cm? What is the Z…

A: Given that, Mean (μ)=49.9 sd (σ) = 3.74

Q: Imagine that every elementary school in California is measured on several characteristics and then…

A:

Q: minimum shoulder girth is 87 cm and the maximum shoulder girth is 134 cm. The mean shoulder girth is…

A: Solution: Given information:  Let x = Shoulder girth and y= height  x = 108.87sx=10.12y= 173.86 sy=…

Q: A particular fruit's weights are normally distributed, with a mean of 497 grams and a 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: A particular fruit's weights are normally distributed, with a mean of 639 grams and a standard…

A: The population mean and standard deviation are 639 grams and 36 grams respectively. It is given that…

Q: The average McDonald's restaurant generates $3.6 million in sales each year with a standard…

A: For the MacDonald's restaurant the following information is provided. Average μ=3.6  Standard…

Q: A particular fruit's weights are normally distributed, with a mean of 526 grams and a standard…

A: Given that, Mean = 526 Standard deviation = 36 Sample size = 7

Q: Given a mean of 24.5 and a standard deviation of 1.7, within how many standard deviations of the…

A: A mean of 24.5 and a standard deviation of 1.7

Q: A particular fruit's weights are normally distributed, with a mean of 516 grams and a standard…

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Q: A particular fruit's weights are normally distributed, with a mean of 788 grams and a standard…

A: Let "X" be the weight of the heaviest fruit in grams. Find z-value (z): Since the total area…

Q: Both data sets have a mean of 195. One has a standard deviation of 16, and the other has a standard…

A: Given the box plot of data sets A and B, we use the key: 15|8=158. And also given that both data…

Q: The mean height for women in the United States is approximately 64.5 inches with a standard…

A: Formula : Z =(X - μ)/σ

Q: A marketing company wants to compare the effectiveness of two different advertising campaigns. They…

A: The null hypothesis is that there is no significant difference in the mean purchase amount between…

Q: Suppose there are two groups of students. Group A and Group B both have an average height of…

A: Here there are two groups of students are given named as A and B. And the given parameters of A and…

Q: The carbon dioxide emissions of EU nations had a mean of 7.9 and standard deviation of 3.6. a.…

A: Since we have given that Mean(µ) = 7.9Standard deviations (σ) = 3.6 Since part (a) you have already…

Q: If the mean of a list of numbers is 16.7 and the standard deviation is 0,

A: Mean is a measure of central tendency. It is one of the most important measures to find out around…

Q: The average McDonald's restaurant generates $3.4 million in sales each year with a standard…

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Q: Both data sets have a mean of 175. One has a standard deviation of 16, and the other has a standard…

A: The stem-and-leaf plots are given and the one has a standard deviation of 16 and other has a…

Q: A particular fruit's weights are normally distributed, with a mean of 222 grams and a standard…

A: Solution: Let X be the  fruit's weights are normally distributed with mean 222 grams and standard…

Q: ctrical customers are often told what the average amount of electricity is used for similar homes in…

A: The mean is μ=1650Standard deviation is σ=320z-value at 86% confidence is Zc=1.18x=?

Q: A food company sells salmon to various customers. The mean weight of the salmon is 36 lb with a…

A: Suppose X denotes the salmon.The mean weight of a salmon is 36 lb and the standard deviation is 2…

Q: A particular fruit's weights are normally distributed, with a mean of 367 grams and a standard…

A:

Q: Suppose that the heights of college women follow a normal distribution with a mean 65 inches and a…

A: Let X represent the heights of college women Mean=65 Standard deviation=2.5   X~ Normal (65, 6.25)…

Q: A group of 894 women aged 70-79 had their height and weight measured. The mean height was 159 chi wi…

A: Solution-: For Height: Given: μ=159cm,σ=5cm For Weight:  Given:μ=65.9kg,σ=12.7kg We find, (a) P[the…

Q: A particular fruit's weights are normally distributed, with a mean of 453 grams and a standard…

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Q: weighs 170 lbs with a standard deviation of 8 lbs and the average female tennis player weighs 125…

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Q: A particular fruit's weights are normally distributed, with a mean of 207 grams and a standard…

A: It is given that the fruit weights have a normal distribution with mean 207 grams and standard…

Q: The weights for a population of North American raccoons have a bell shaped frequency curve with a…

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Q: In a county male height is normally distributed with a mean of 175 cm and a standard deviation of 6…

A: Given that.   X~N( μ , ?^2 )   μ=175   , ?=6   Z-score =( x - μ )/?

Q: A statistics instructor gives two different tests to measure students' aptitude for statistics.…

A: We have given that, Mean1 = 22 and standard deviation1 = 5. Mean2 = 71 and standard deviation2 =…

Q: In one town, the number of pounds of leafy greens consumed per person per year has a mean of 10…

A: (1) Standardized z-score:   The standardized z-score represents the number of standard deviations…

Q: A particular fruit's weights are normally distributed, with a mean of 767 grams and a standard…

A: Given data,μ=767σ=39P(X>x)=0.11x=?

Q: A particular fruit's weights are normally distributed, with a mean of 431 grams and a standard…

A: Let X be the mean weight in grams. X is normally distributed with mean, μ=431 grams and standard…

Q: A particular fruit's weights are normally distributed, with a mean of 384 grams and a standard…

A: Let X be the fruit's weights follows normally distributed, with a mean of 384 grams and a standard…

Q: The average chef at a restaurant earns $17 an hour with a deviation of $1.75. What are the chances…

A:

Q: Imagine that every elementary school in California is measured on several characteristics and then…

A: From the provided information, Mean (µ) and standard deviation (σ) of the school in Los Angeles…

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.