A company manufactures eyeglasses for different retailers. In March 2010, they tested to see how manydefective lenses they made, and there were 17.5% defective lenses due to scratches. Suppose the compaexamined twenty-one eyeglasses.State the random variable.The number of lenses that were scratched.O The type of defect.The number of defective lenses.Round your answers to four decimal places, if necessary.Find the probability thatNone are scratched.P(x = 0) =All are scratched.P(x = 21) =At most eleven are scratched.P(x < 13) =At least thirteen are scratched.P(x > 5) =Is it unusual for at least thirteen lenses to be scratched?No, because the probability is less than 0.05.Yes, because the probability is at least 0.05.O No, because the probability isleast 0.05.Yes, because the probability is less than 0.05.

The random variable is the number of lenses that were scratched. Here, n=21 and p=0.175.

A company manufactures eyeglasses for different retailers. In March 2010, they tested to see how many defective lenses they made, and there were 17.5% defective lenses due to scratches. Suppose the compa examined twenty-one eyeglasses.

A company manufactures eyeglasses for different retailers. In March 2010, they tested to see how many defective lenses they made, and there were 17.5% defective lenses due to scratches. Suppose the compa examined twenty-one eyeglasses.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter6: Ratio, Proportion, And Probability

Section6.7: Probability And Odds

Problem 2C

See similar textbooks

Related questions

Q: 35. In a large sample, which is the bigger concern?

A: HERE GIVEN, SAMPLE SIZE IS TOO LARGE

Q: 2. A birthday party host planned for 20 people, but 17 actually attended. What is the percent error?

A: Given that a birthday party host planned for 20 people, but 17 actually attend. From these data it…

Q: Out of the numbers listed below, what number is in the 90th percentile? what percentile is 52,598?

A: From the given information, the total number of numbers in the given list is observed to be 15. Now…

Q: An entertainment company surveyed 360 elementary school children and found that 153 of them were…

A: There are 153 out of 360 (n) elementary school children found as above grade level readers. The…

Q: A Pew Research study estimates that 803 million people live in poverty today, after the 2020 global…

A: It is given that 803,000,000 people live in poverty today, out of 7,754,000,000 people worldwide.

Q: A population is normally distributed with µ = 86 and σ = 12. For this population, what is the 78th…

A: The population mean is 86 and population standard deviation is 12. The 78th percentile is, The…

Q: Of 250 adults who tried a new multi-grain cereal, "Wow!", 187 rated it excellent; of 100 children…

A: Pooled Proportion: Let us suppose in a population of size N1 the number of members possessing a…

Q: Which is a statistical question? How old was George Washington when he became president? How many…

A: Statistical Questions:- A question is a statistical question of it can be answered with date that…

Q: A 2015 Gallup poll of 1,627 adults found that only 22% felt fully engaged with their mortgage…

A: Here the sample size is number of adults.

Q: 3. In a Gallup Pool, 52% of 1038 surveyed adults said that second hand smoke is "very harmful". What…

A: Following information is given: Total number of people survey = 1038 Percentage of people who said…

Q: The province of Pangasinan has a population of 3,163,190. Calculate the sample size using Yamane's…

Q: When 3,011 adults were surveyed in a Pew Research Center poll, 73% said that they use the internet.…

A: Given Information: n = 3011 ¾ of all adults use the internet (p) = 75% = 0.75 = 73% = 0.73 Step…

Q: 13. If 27 out of 30 people passed a driving test, what percent failed?

A: Given Total people = 30 Passed people= 27 So ,failed people= 30-27 = 3

Q: invested in bonds. For a = .10, does the test show enough evidence to declare that the proportion of…

A: Given: Sample size, n = 215 x = 91 Population proportion, p = 0.57 significance level

Q: Can you think of an area where it might not be practical, for a variety of reasons, to sample 100%…

A: Given:- We can think of an area where it might be practical, for a variety of reasons ,to sample…

Q: In order to estimate the attendance at a 1,000,000 square foot mall, a sample of people is taken in…

A: We will solve the problem

Q: In a shipment of 500 light bulbs, 25 of them were broken. What percentage of the light bulbs were…

A: Given , In a shipment of 500 light bulbs , 25 of them were broken . We have to find the percentage…

Q: In a sample of 508 men who worked at home, 32% of them were college graduates. a.) Among the 508 men…

Q: What percentage of the sample were female drivers?

A: It is given that Total = 5+7+11+9 = 32 Number of females = 7+9 = 16

Q: se a study revealed 5*

A: Given, a study revealed 57% of all subjects possessed trait A, 28% possessed trait B, and…

Q: Take a random sample of 50 pages from a book and estimate the proportion of all pages that contain…

A: Here we want to find proportion of pages that contain figures.

Q: What percentage of pets are Rabbits?

Q: Suppose that in a group of 800 women, the percentage who work is the same as in the sample here, how…

A: men women total work 15 23 80 not work 23 28 51 total 38 93 131

Q: If in a village actually involved by anthrax, 70 per cent of the goats are attacked and pei cent…

Q: C) What percentage of CT scans in this target population would be positive?

A: Given: P(Cancer) = 3% = 0.03 P(No cancer) = 1-0.03 = 0.97. P(test positive|cancer) = 89% = 0.89…

Q: For a sample of size 25, degrees of freedom is equal to _____.

A: From the given information, Sample size = 25 The objective is to find the degrees of freedom.

Q: A survey reported that 10% of 1800 employees favored a new insurance program. How many employees…

Q: The Ministry of Health in the Canadian Province of Ontario conducted the Ontario Health Survey by…

A: Stratified sampling :- When we have Homogenous distinguishable sub-groups. Then the population is…

Q: A medical researcher wants to do a study on the proportion of knee replacement surgeries that result…

Q: c) If the scientists want to estimate the proportion of deer that carry Lyme disease ticks to…

A: We have given that, Margin of error (E) = 0.02 and confidence level = 90% Then, We will find the…

Q: A geography student in Parkville, Missouri is conducting a housing survey, including questions about…

A: It is given that she knows that about 38% of the people in Parkville live in apartments, and wants…

Q: A marble manufacturer advertises that its bags of marbles will contain 25% "milky-white" marbles.…

A: In the context, the sampling percentage of milky-white marbles, p̂ is 25%. The total number of…

Q: In a survey of 3121 people, 412 are under-vaccinated. What is the proportion of under-vaccinated…

A: Given data, Total no of people n=3121 No of people under vaccinated is x=412 What is the proportion…

Q: A quality control officer in a food processing factory selects every 20th jar of pickles from the…

A: In the above question food processing factory selects every 20th jar of pickles from the conveyor…

Q: The Arizona Department of Transportation wishes to survey state residents to determine what…

A: Suppose p̂ is the sample proportion of the population, who would like to increase state-wide…

Q: our population? W

A: A population is a total group included in the survey. A sample is a specific group from which data…

Q: If there are six groups being compared, how many mean comparisons will there be?

A: Given there are six groups.Here, it is required to find the total number of comparisons.

Q: a) What proportion of workers answered yes to the survey? b) What was the margin of error?

A: Here, the 95% confidence interval for the proportion of workers that answered 'yes' is (0.62, 0.73).…

Q: In the upcoming election for governor, the most recent poll, based on 900 respondents, predicts that…

A: From the given information, In the upcoming election for governor, the most recent poll, based on…

Q: A recent study attempted to estimate the proportion of Florida residents who were willing to spend…

Q: What percent of students preferred iced tea?

A: Total number of students = (840+390+830+510+430) = 3000 Number of students who preferred iced tea =…

Q: What is the percentage of households with an intensified waste management system (dark green)?

A: The objective is to find the percentage of households with an intensified waste management system…

Q: If the proportion of Hs is .45 out of 200 flips, what is the p-value?

A: Solution-: Given : We find p-value=?

Q: The US population is 13% African American. If you were to take a SRS of 500 Americans, below what…

A: From the given data The US population is 13% African American

Q: many males are in the sample?

A: A survey of 500 people is shown in a tree diagram M-male F-female E-eat breakfast D-does do not eat…

Q: What is the percentile for a person that has taken 16 courses? (Your answer should be a %, such as…

A: Percentiles can be calculated using the formula n = (P/100) x N, where P = percentile, N = number…

Q: The 8 most common blood types of people in the United States, and the percentage of people with…

A: Note: Hi there! Thank you for posting the question. As your question has more than 3 parts, we have…

Q: The 77th percentile is O.

A: X~N(50 ,49)Let Q be the 77th percentile .P(X<Q) =0.77⇒P(X-507<Q-507) = 0.77⇒ϕ(Q-507) =…

Q: Suppose you want to investigate the proportion of households in Muscat governorate that have fire…

A: Given information: The investigator is specially interested to estimate the proportion of households…

Q: Give two reasons why it would be necessary to examine a sample of the shirts produced rather than…

A: Give two reasons why it would be necessary to examine a sample of the shirts produced rather than…

Question

A company manufactures eyeglasses for different retailers. In March 2010, they tested to see how many
defective lenses they made, and there were 17.5% defective lenses due to scratches. Suppose the compa
examined twenty-one eyeglasses.
State the random variable.
The number of lenses that were scratched.
O The type of defect.
The number of defective lenses.
Round your answers to four decimal places, if necessary.
Find the probability that
None are scratched.
P(x = 0) =
All are scratched.
P(x = 21) =
At most eleven are scratched.
P(x < 13) =
At least thirteen are scratched.
P(x > 5) =
Is it unusual for at least thirteen lenses to be scratched?
No, because the probability is less than 0.05.
Yes, because the probability is at least 0.05.
O No, because the probability is
least 0.05.
Yes, because the probability is less than 0.05.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Research Ethics$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.