In a city, it is estimated that the maximum temperature in July is normally distributed with...

In a city, it is estimated that the maximum temperature in July is normally distributed with a mean of 23º and a standard deviation of 4°. Calculate the probability of having a maximum temperature between 20° and 28°

The amount of tea leaves in a can from a particular production line is normally distributed with μ (mean) = 110 grams and σ (Standard deviation) = 5 grams. If a sample of 9 cans is selected, what is the probability that the sample mean of the content “tea leaves” to be more than 115 grams?

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orchestra answered 2 years ago

The prices of condos in a city are normally distributed with a mean of $100,000 and...

The prices of condos in a city are normally distributed with a mean of $100,000 and a standard deviation of $32,000. Answer the following questions rounding your solutions to 4 decimal places. 1. The city government exempts the cheapest 6% of the condos from city taxes. What is the maximum price of the condos that will be exempt from city taxes? 2. If 2% of the most expensive condos are subject to a luxury tax, what is the minimum price...

1. Coffee temperature ~ The temperature of coffee served at a restaurant is approximately normally distributed...

1. Coffee temperature ~ The temperature of coffee served at a restaurant is approximately normally distributed with an average temperature of 160 degrees and a standard deviation of 5.4 degrees. a. What percentage of coffee servings are between 153 and 167 degrees? Final Answer: _______________________ b. What percentage of coffee is served at a temperature greater than or equal to 170 degrees? Final Answer: _______________________ c. What is the cutoff for the coolest 20% of coffee servings at this restaurant?

It is estimated that heights of adult men are normally distributed with a mean of 70...

It is estimated that heights of adult men are normally distributed with a mean of 70 inches and a standard deviation 3.3 inches. In one state, the law requires a person to be 68 inches or taller to become a fire fighter. What proportion of adult men will meet this height requirement for becoming a fire fighter in this state? .7291 A person who was denied to become a fire fighter learned that his height was at the 20th percentile....

It is known that the average body temperature of healthy individuals is is normally distributed with...

It is known that the average body temperature of healthy individuals is is normally distributed with a mean, μ = 37 oC and standard deviation, σ = 0.6 oC. We found the average temperature of a random sample of 24 SIBT students in a Statistics tutorial. What is the probability that the average body temperature of this sample of students will be less than 37.4 oC? (4 dp) Answer What is the probability that average body temperature of these students...

1. The daily temperature in August in a region is normally distributed with a mean of...

1. The daily temperature in August in a region is normally distributed with a mean of 86 degrees F and a standard deviation of 4 degrees F. What is the probability (4 significant figures) that a daily temperature would be 72 degrees F or less? Would this be considered unusual, or not unusual? 2. The daily temperature in August in a region is normally distributed with a mean of 86 degrees F and a standard deviation of 4 degrees F....

[4] The prices of condos in a city are normally distributed with a mean of $90,000...

[4] The prices of condos in a city are normally distributed with a mean of $90,000 and a standard deviation of $28,000. The city government exempts the cheapest 6.68% of the condos from city taxes. What is the maximum price of the condos that will be exempt from city taxes? If 1.79% of the most expensive condos are subject to a luxury tax, what is the minimum price of condos that will be subject to the luxury tax?

The value of investment properties in a certain city is normally distributed with a mean of...

The value of investment properties in a certain city is normally distributed with a mean of $360,000 and standard deviation of $60,000. (a) What is the probability that a randomly selected property is worth less than $250,000? (b) If the value of investment properties for 5% of all investors is less than a given amount, what is the maximum amount that an investor would expect to pay for a property? (c) If a random sample of 45 investors is selected,...

Question 4. The demand for a new product is estimated to be normally distributed with μ...

Question 4. The demand for a new product is estimated to be normally distributed with μ = 200 and σ = 40. Let x be the number of units demanded, and find the following probabilities: a. P(180≤ x ≤220) b. P(x ≥ 250) c. P(x ≤ 100) d. P(225≤ x ≤250)

11. The high temperature in Chicago for the month of August is approximately normally distributed with...

11. The high temperature in Chicago for the month of August is approximately normally distributed with mean µ = 80 F and σ = 8 F. Draw a picture of the distribution, write the z-score, and use the appropriate notation. a. What is the middle 99.7% of the data? b. What is the probability that a randomly selected day in August has a temperature less than 78 F c. What is the probability that the temperature is between 80o and...

The average February temperature in Indiana is normally distributed with a mean of 28.89 degree and...

The average February temperature in Indiana is normally distributed with a mean of 28.89 degree and a variance of 26.16 degree (X~N(28.89,26.16)). The average February 2017 temperature is 42.85 degree. What is the probability that the average February temperature is greater than 42.85 degree?

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