The weight of Idaho potatoes are normally distributed with a mean of 15 oz and a standard deviation of 1.8 oz. Find the following probabilities: c) Is it unusual to find a sample of 16 Idaho potatoes with an average weight =14.8 o |
a)
b)
P(average weight>17.2)
=P(Z>(17.2-15)/0.45)
=P(Z>4.89)
=1-P(Z<4.89)
=0.000000507
c)
The weight of Idaho potatoes are normally distributed with a mean of 15 oz and a...
15) Assume that z scores are normally distributed with a mean of 0 and a standard deviation 15) of 1. If P(z> c) 0.109, find c. olve the problem. 16) 16) Scores on an English test are normally distributed with a mean of 37.4 and a standard deviation of 7.9. Find the score that separates the top 59% from the bottom 41% 17) Suppose that replacement times for washing machines are normally distributed with a 17) mean of 10.9 years...
Potatoes - Samples: Assume the weights of Farmer Carl's potatoes are normally distributed with a mean of 9.0 ounces and a standard deviation of 1.2 ounces. He bags his potatoes in groups of 6. You buy a bag and the total weight is 48 ounces. Here we determine how lucky or unlucky you are. (a) What is the mean potato weight in your bag of 6? Enter your answer to 1 decimal place. ounces (b) If 6 potatoes are randomly...
8. The weight of coffee in a can is normally distributed with a mean of 16.1 oz. and standard deviation of 0.5 oz (a) According to the label, a can contains 16 oz. of coffee. What is the probability that there is less than 16 oz. of coffee in a can? (b) What is the probability that a can contains 16 to 16.5 oz. of coffee? (c) What is the lower 10th percentile of the distribution of the coffee weight?...
The weight of men of a certain age is normally distributed with mean 210 lbs and standard deviation 2.5 lbs. A random sample of 36 men is taken. Find the probability that the average weight is less than 205 lbs.
The weight of the potatoes is approximately normally distributed with population mean μ=10 ounces and population standard deviation σ=1.5 ounces. Use 68-95-99.7 rule to answer the questions below: a). What is the probability that a randomly selected potato weighs over 13 ounces? b). What is the probability that a randomly selected potato weighs below 8.5 ounces? c). What is the probability that a randomly selected potato weighs between 8.5 ounces and 10 ounces? d).What is the probability that a randomly...
sorry R is 8 Question 5 10 marks (a) . Suppose X is a normally distributed random variable with a mean of 15 and a standard deviation of 2.34+G Find the following probabilities. Correct your answers to 4 decimal places. (1) (ii) P(X > 14.5) P(15.3 < X < 16.8) (2 marks) (3 marks) (b) Suppose X is the sample mean of 10 observations selected randomly from a normal distribution with a mean of 15 and a standard deviation of...
Suppose the weights of Farmer Carl's potatoes are normally distributed with a mean of 9 ounces and a standard deviation of 1.1 ounces. Round your answers to 4 decimal places. If one potato is randomly selected, find the probability that it weighs less than 10 ounces.
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