QUESTION 20Suppose ferrets have a mean lifespan of 9.2 years with a standard deviation of 2.13 years. What is the probability that a ferret will live longerthan 8.7 years?Z-Score = -0.23(to the nearest hundredth)Work: 8.7-9.2/2.13 = -0.2347Identify the image below that best represents the standard normal curve you drew for this problem. DCD.Area from the Table:Work:Final Answer:

Let X be the random variable from normal distribution with mean (μ) = 9.2 and standard deviation (σ)…

Answered: QUESTION 20 Suppose ferrets have a mean…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

A population with μ of values has a normal distribution 10.8 and 97.6. You intend to draw = = o = u a random sample of size n = 122. What is the mean of the distribution of sample means? Hã = What is the standard deviation of the distribution of sample means? (Report answer accurate to 2 decimal places.) 07 = x
Consider the production data shown in this example. (Assume a normal distribution. Due to the nature of this problem, (a) What is the mean (in minutes)? x = 9.22 minutes (b) What is the standard deviation (in minutes)? 515.16 S = Z = X-X S 99 (c) Determine the z value corresponding to a 5-minute-assembly time. 5- 9.22 = -1.85 2.2811 = 2.2811 minutes (d) Referring to this table, determine the A value. A = (e) Determine the probability that it will take a person longer than 5 minutes to assemble the computer parts. 0.5 +
24
Use Excel to find the z-scores that bound the middle 66% of the area under the standard normal curve. Enter the answers in ascending order. Round the answers to two decimal places. The z-scores for the given area are Part 1 of 3 Big chickens: The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1433 grams and standard deviation 170 grams. Use the TI-84 Plus calculator to answer the following. (a) What proportion of broilers weigh between 1163 and 1243 grams? (b) What is the probability that a randomly selected broiler weighs more than 1502 grams? (c) Is it unusual for a broiler to weigh more than 1600 grams? Round the answers to at least four decimal places. The proportion of broilers that weigh between 1163 and 1243 grams is Part 2 of 3 and Part 3 of 3 Ś The probability that a randomly selected broiler weighs more than 1502 grams is (Choose one) Yes No X because the probability that a broiler weighs more than 1600 grams is X 5 5 X 5
question 5
In a particular statistics exam, the 35th percentile of final exam score is 42, and the 70th percentile of final exam score is 76. A histogram of the scores approximately follows the normal curve. What is the approximate standard deviation of the final exam scores? Hints: What is the z value in the normal table that gives you closest to 35% of the area between -z and z? Now what does that tell you about the number of SDs in between 42 inches and 76 inches? You might find it helpful to draw a picture of the normal curve with original units and standard units. Group of answer choices a. 7.5 b. 13.1 c. 20.7 d. 37.8
Find each of the shaded areas under the standard normal curve using a TI-84 calculator. Round the answers to four decimal place: Part 1 of 4 The area of the shaded region is Part 2 of 4 The area of the shaded region is 1. Part 3 of 4 -0.96 Part 4 of 4 -0.35 The area of the shaded region is 0.56 1.56 X X 1.89 2.23 5 5 S
helpp me plssss
ge=19 Choose the best option for the standard normal curve such that Z = 1.5 and z = 2.5. Select one: a. 0.0606 O b.0.0668 O c. 0.4332 O d. 0.4938
Question 3 A population of values has a normal distribution with u = 209.1 and o = 69.2. You intend to draw a random sample of size n 12. Find the probability that a single randomly selected value is greater than 215.1. P(X > 215.1) = Find the probability that a sample of size n = 12 is randomly selected with a mean greater than 215.1. P(M > 215.1) = Enter your answers as numbers accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted. Question Help: Video D Post to forum ICalculator Submit Question MacBook Pro
Question 8 of 38 -/3 E View Policies Let x be a continuous random variable that follows a normal distribution with a mean of 200 and a standard deviation 25. Find the value of x so that the area under the normal curve between a and x is approximately 0.4798 and the value of x is greater than u. Round your answer to two decimal places. Attempts: 0 of 2 used Using multiple attempts will impact your score. 10% score reduction after attempt 1
Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone normally found is 4.6 parts/million (ppm). A researcher believes that the current ozone level is at an excess level. The mean of 14 samples is 4.9 ppm with a variance of 1.2 Does the data support the claim at the 0.01 level? Assume the population distribution is approximately normal. Step 2 of 5 : Find the value of the test statistic. Round your answer to three decimal places.

SEE MORE QUESTIONS

Recommended textbooks for you

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

SEE MORE TEXTBOOKS