ZuoTi.Pro
Question

The following data are the result of a historical study of the number of flaws found...

The following data are the result of a historical study of the number of flaws found in a porcelain cup produced by a manufacturing firm. Use these data and the associated probabilities to compute the expected number of flaws and the standard deviation of flaws.

Flaws Probability
0 0.467
1 0.272
2 0.128
3 0.095
4 0.038


(Round the intermediate values and final answers to 3 decimal places.)

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
The following data are the result of a historical study of the number of flaws found...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • please answer step by step thank you The file Exam_2.xlsx sheet named Flaws, lists the discrete...

    please answer step by step thank you The file Exam_2.xlsx sheet named Flaws, lists the discrete distribution of the number of flaws found in a porcelain cup produced by a manufacturing firm. Use these data and the associated probabilities to compute the expected number of flaws and the standard deviation of flaws. [Note: Use Excel to calculate the expected value and the standard deviation of flaws. Show your work on Flaws sheet. Do not create a new sheet or a...

  • The number of flaws x on an electroplated automobile grill is known to have the following...

    The number of flaws x on an electroplated automobile grill is known to have the following probability mass function: p(0) = 0.6; p(1) = 0.2; p(2) = 0.1; p(3) = 0.1 a) Is this random variable continuous or discrete? Justify your answer. b) Verify that this is a proper mass function c) What is the probability that a randomly selected grill has fewer than 2 flaws? Calculate the probability, and use proper probability notation. d) What is the probability that...

  • A study found the following data for the number of intersections in a certain neighborhood: 1...

    A study found the following data for the number of intersections in a certain neighborhood: 1 8 6 1 1 5 3 0 0 4 0 0 1 2 1 4 0 4 0 3 1 1 0 1 3 2 4 6 6 0 1 8 3 3 5 0 5 2 3 1 construct a histogram for the data. what proportion of these data points had at least 4 intersections? how many had at most 2 intersections?

  • A study found that the variance in the number of vehicles owned or leased by subscribers...

    A study found that the variance in the number of vehicles owned or leased by subscribers to a magazine is .094. Assume a sample of 12 subscribers to another magazine provided the following data on the number of vehicles owned or leased: 1,1,1,0,3,2,1,1,2,1,0, and 1 a) Compute the sample variance in the number of vehicles owned or leased by the  subscribers (to 4 decimals). b)Test the hypothesis   to determine whether the variance in the number of vehicles owned or leased by subscribers...

  • A study conducted by the American Heart Association found that the average American exercises vigorously for...

    A study conducted by the American Heart Association found that the average American exercises vigorously for an average of 17 minutes per day, with a standard deviation of 1.2. A researcher who works with women with health issues wants to determine if the group is different than the national average. The researcher finds that his group of 25 women exercises 15 minutes per day. Assume normal distribution and test at a 0.05 level of significance (a = .05). 1. State...

  • 10) A set of data was collected involving the number of defective items found in a...

    10) A set of data was collected involving the number of defective items found in a random sample of 46 cases of light bulbs produced during a morning shift at a plant. A manager wants to know if the mean number of defective bulbs per case is greater than 20 during the morning shift. She will make her decision using a test with a level of significance of 0.10. The following information was determined for the sample of 46 cases:...

  • Based on data from a car bumper sticker​ study, when a car is randomly​ selected, the...

    Based on data from a car bumper sticker​ study, when a car is randomly​ selected, the number of bumper stickers and the corresponding probabilities are as shown below. x   P(x) 0   0.800 1   0.088 2   0.045 3   0.017 4   0.014 5   0.012 6   0.009 7   0.007 8   0.006 9   0.002 A. Does the given information describe a probability​ distribution? B. Assuming that a probability distribution is​ described, find its mean and standard deviation. C. Use the range rule of thumb...

  • The following table presents the observed and expected data on the number of plants found in...

    The following table presents the observed and expected data on the number of plants found in each of 50 sampling quadrants. # of plants Observed Frequency (Oi) Expected Frequency (Ei) 0 5 6.676 1 18 13.534 2 10 13.534 3 12 9.022 4 5 7.144 H0 : The distribution is Poisson H1 : The distribution is not Poisson a.) Justify why the assumption of the Poisson distribution seem appropriate as a probability model for this data? Find the value of...

  • The following table presents the observed and expected data on the number of plants found in...

    The following table presents the observed and expected data on the number of plants found in each of 50 sampling quadrants. # of plants 0 Observed Frequency (0) 5 18 10 1 Expected Frequency (E;) 6.767 13.534 13.534 9.022 7.144 2 3 >4 12 5 Ho: The distribution is Poisson H7: The distribution is not Poisson A) Justify why the assumption of the Poisson distribution seem appropriate as a probability model for this data? Find the value of the only...

  • The following table presents the observed and expected data on the number of plants found in...

    The following table presents the observed and expected data on the number of plants found in each of 50 sampling quadrants. # of plants Observed Frequency (0) Expected Frequency (E) 5 6.767 18 13.534 2 10 13.534 3 12 9.022 24 5 7.144 Ho: The distribution is Poisson Hy: The distribution is not Poisson Part a (5 points): Justify why the assumption of the Poisson distribution seem appropriate as a probability model for this data? Find the value of the...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT