The mean value of land and buildings per acre from a sample of farms is $1400, with a standard deviation of $200. The data set has a bell-shaped distribution. Assume the number of farms in the sample is 74. ... (a) Use the empirical rule to estimate the number of farms whose land and building values per acre are between $1200 and $1600. |farms (Round to the nearest whole number as needed.)

Q: Reading scores. The grade-level reading scores from a reading test given to a random sample of 12…

A: For the given data find ( a ) Mean =? ( b ) Standard deviation = ?

Q: The weights of a certain dog breed are approximately normally distributed with a mean of 51 pounds,…

A: given data,normal distributionμ=51σ=7.7we have to find out the given probabilities.

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: Consider the data of a businessman that accumulates the daily sales of his restaurant business…

A: The data of the daily sales of restaurant for the 10 day is given as: 18,500  23,600  21,210…

Q: f a data set has an even number of observations, the median   a. can not be determined   b. is the…

A: Median:   It is nothing but divides the observations into two equal parts and represents the middle…

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

A:

Q: According to a government study among adults in the 25-to 34-year age group, the mean amount spent…

A: Mean()=2080standard deviation()=480

Q: That is the difference between the weight of 5.33 lb and the mean of the weights? ow many standard…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: The weights of a certain dog breed are approximately normally distributed with a mean of 53 pounds,…

A: Given that, The random variable X is the weight of a certain dog breed It is normally distributed.…

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: According to the given information, we have Mean = 41 and Standard deviation = 6

Q: According to a recent survey, the salaries of assistant professors have a mean of $41,750 and a…

A: To get the proportion of professor who earn more than $48,000 we proceed as follows…

Q: Find the percentage of dogs of this breed that weigh less than 52 pounds. % b) Find the percentage…

A: Let X be the random variable that the weights of a certain dog breed.Given that,To find the…

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: Given that the Acme Company manufactures widgets. The distribution is bell-shaped. Mean = 45 ounces…

Q: The weights for newborn babies is approximately normally distributed with a mean of 5.7 pounds and a…

A: Note:- "Since you have posted a question with multiple sub parts, we will provide the solution only…

Q: Use the Empirical Rule. The mean speed of a sample of vehicles along a stretch of highway is 66…

A:

Q: The weights of a certain dog breed are approximately normally distributed with a mean of 50 pounds,…

A: a)Suppose the random variable x defines the weight of a certain dog breed.

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: The question is about normal dist. Given : Popl. mean weight ( μ ) = 53 ounce Popl. std. deviation (…

Q: A group of students in a math class were surveyed and asked: “How many hours each week do you study…

A: Solution

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

A: (a) Determine the difference between carrier’s highest data speed and the mean of all 50 data…

Q: A survey of 21 accountants finds that they spend a mean of $45.00 each week on lunch with a standard…

A: The provided data is,

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: Mean()=51standard deviation()=8

Q: he Acme Company manufactures widgets. The istribution of widget weights is bell-shaped. The vidget…

A: From the given information we find the solution using empirical rule.

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: Given information Mean µ = 37 Ounces Standard deviation σ = 3 Ounces As per empirical Rule 68%…

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: Given Mean=45 Standard deviations=7

Q: a population consistas of all the weights of all defensive tackles on sociaable university football…

A: From the provided information, The data is as follow: 204, 215, 207, 212, 214 and 208 pounds The…

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: Solution: a. Let X be the widget weight. From the given information, X follows normal distribution…

Q: The mean value of land and buildings per acre from a sample of properties is $11,800, with a…

A: The objective of this question is to find the range of values within which approximately 99.7% of…

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

A: Hello There! there are more than 3 subpats in the question. According to our policies cannot answer…

Q: e Acme Company manufactures widgets. The distribution of widget weights is bell-shaped dget weights…

A: Given Mean=46 Standard deviation=7

Q: the mean iq for the u.s. is 100 with a standard deviation of 15. a troy statistics professor thinks…

A: The objective of this question is to test the hypothesis that the mean IQ of Troy students is…

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: Given that  Mean = 57 and standard deviation 7 of a bell shaped distribution.

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: Solution: Given: μ=43,σ=4 We want to find  (a) 68% of the widget weights lie between .....and .....…

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A:

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

A: Hi! Thank you for the question. As per the honor code, we are allowed to answer three sub-parts at a…

Q: For a data set of the pulse rates for a sample of adult​ females, the lowest pulse rate is 39 beats…

A: Hello there! there are more than 3 subparts in the question. According to our policies cannot answer…

Q: An economist claims that the population standard deviation of the monthly income of all the families…

A: Population is a pool of individuals from which a sample is drawn for a study.

Q: The mean value of land and buildings per acre from a sample of farms is ​$1200​, with a standard…

A: Given that, the value of land and buildings per acre from a sample of farms have…

Q: A group of construction students were asked to find the level of illuminance (unit: lux) in…

A:

Q: Use the Empirical Rule. The mean speed of a sample of vehicles along a stretch of highway is 65…

A:

Q: Mr. Stant collected information on how much customers spend at Walmart and Target. He created the…

A: The histogram for Walmart is symmetrical and bimodal but the high frequencies are observed at…

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A:

Q: A forest ranger has data on the heights of a large growth of young pine trees. The mean height is…

A:

Q: For a data set of the pulse rates for a sample of adult​ females, the lowest pulse rate is 38 beats…

A: Note: Thank you for the question. Since multiple subparts are posted, according to our policy, we…