The selling price of a new car is normally distributed with an average of $20880 and...

The selling price of a new car is normally distributed with an average of $20880 and a variance of $12180100.00.

a) What proportion of new cars will sell for less than $21600?
probability =

b) Assuming a normal distribution, within what selling prices will the middle 88% fall?
lower = , upper =

Note: Do NOT input probability responses as percentages; e.g., do NOT input 0.9194 as 91.94.

Expert Solution

orchestra answered 2 years ago

The selling price of a new car is normally distributed with an average of $21770 and...

The selling price of a new car is normally distributed with an average of $21770 and a variance of $5290000.00. a) What proportion of new cars will sell for more than $19760? probability = Is the answer .808914? b) Assuming a normal distribution, within what selling prices will the middle 83% fall? lower = , upper = could I see the work out for part b? thank you Note: Do NOT input probability responses as percentages; e.g., do NOT input 0.9194...

The selling price of a new car is normally distributed with an average of $23090 and...

The selling price of a new car is normally distributed with an average of $23090 and a standard deviation of $3060. a) What proportion of new cars will sell for more than $19130? probability = b) Assuming a normal distribution, within what selling prices will the middle 96% fall? lower = , upper =

The daily selling price per 100 pounds of buffalo meat is normally distributed with a mean...

The daily selling price per 100 pounds of buffalo meat is normally distributed with a mean of 70 dollars, and the probability that the daily price is less than 85 dollars is 0.9332. Four days are chosen at random, what is the probability that at least one of the days has a price that exceeds 80 dollars?

The average price for new mobile homes is known to be distributed with a population standard...

The average price for new mobile homes is known to be distributed with a population standard deviation of 300. If a random sample of 36 homes resulted in a sample mean of 55,000, obtain a 90% confidence interval.

1. The average price for a new car is $18,000 and the standard deviation is $1,500....

1. The average price for a new car is $18,000 and the standard deviation is $1,500. Calculate the z scores for the following individual scores. SHOW YOUR WORK.If X = 19,000, z = _ 2. Using z-scores. SHOW YOUR WORK The percent of area beyond z = 1.44 is 3. Using z-scores. SHOW YOUR WORK ).The percent of area between the z = 1.40 and z = 1.49 is ________. 4. Using z-scores. SHOW YOUR WORK The percent of TOTAL...

The price of all new editions of Huawei tablets is normally distributed with mean 1250 S.R....

The price of all new editions of Huawei tablets is normally distributed with mean 1250 S.R. and standard deviation 400 S.R. What is the probability that a sample of 100 tablets will have a sample mean that is more than 1300 S.R.?

The average price for new mobile homes is known to be distributed with population standard deviation...

The average price for new mobile homes is known to be distributed with population standard deviation of 300. If a random sample of 36 homes resulted in a sample mean of 55, 000, obtain a 90% confidence interval.

The mileage of the hybrid car, the Honda Insight, is normally distributed with a mean of...

The mileage of the hybrid car, the Honda Insight, is normally distributed with a mean of 63.4 mpg and a standard deviation of 12.6 mpg. Is it possible to find the probability that the mean mileage of seven Honda Insights exceeds 70 mpg? Provide a justification for your answer. If we want to address the problem “Find the probability that the mean mileage of seven Honda Insights exceeds 70 mpg”, write the probability statement. If we want to address the...

Assume the average weight of a player in the NFL is normally distributed with a population...

Assume the average weight of a player in the NFL is normally distributed with a population mean of 245 pounds with a population standard deviation of 46 pounds. Suppose we take a sample of 50 NFL players. a. What is the probability that a randomly selected player will weigh over 300 pounds? b. What is the probability that a randomly selected player will weigh under 180 pounds? c. What is the probability that a randomly selected player will weigh between...

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...

Question