The toasters produced by a company have a normally distributed life span with amean of 5.8 years and a standard deviation of 0.9 years, the company is willing tohave a warranty that replaces at most 5% of their toasters sold. What is thelongest a blender can last and still be in the lowest 5% of life spans?Homework Help:4VD. Calculating probabilities to compare to set probabilities such as warrantiesand production guidelines (2:23)7.3 years4.6 years5.9 years4.3 years

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Answered: The toasters produced by a company have…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Cranberry syrup is packaged using two production lines. A sample of 5 packs from the first line has a mean of 1.2 quarts with a standard deviation of O.02 quarts. A sample of 6 packs from the second line has a mean of 1.15 quarts with a standard deviation of 0.01 quarts. What is the value of the test statistic? * О 4 0.05 O 2 0.01
Use the Student_Data which consists of 200 MBA students at Whatsamattu U. It includes variables regarding their age, gender, major, GPA, Bachelors GPA, course load, English speaking status, family, and weekly hours spent studying. Let's assume that the Student_Data.xls file was the entire population. We know the mean and standard deviation of student ages to be 42.3 and 8.9, respectively. Using the Normal_ Probability.xls file, compute the percentage of students that are older than 50, younger than 40, between 41 and 46, and oldest 10% are at what age? Then compare to the truth as found in the actual file. ID Gender Major Employ Age MBA_GPA BS GPA Hrs_Studying Works FT 1 1 No Major Unemployed 39 2.82 3.05 3 0 2 1 No Major Full Time 55 3.49 3.45 7 1 3 1 No Major Part Time 43 3.28 3.5 7 0 4 1 No Major Full Time 56 3.25 3.55 7 1 5 1 No Major Full Time 38 3.26 3.3 6 1 6 1 No Major Unemployed 54 2.87 3.05 4 0 7 1 No Major Full Time 30 3.16 3.35 6 1 8 1 No Major Full Time…
Suppose the number of Covax and Pfizer vaccine bought by the Philippine government are normally distributed with 25% of the Covax vaccine are below 180,000 dozens and 30% of the Pfizer vaccine are below 250`,000 dozens. What are the mean and standard deviation
The lengths of a particular animal's pregnancies are approximately normally distributed, with mean = 251 days and standard deviation = 12 days. A "very preterm" baby is one whose gestation period is less than 233 days. Are very preterm babies unusual?
Elsa has taken two exams in Mathematics in Modern World. She got 80 on her first exam, for which the standard deviation was 7 and the mean of all scores was 75. She scored 65 on the second exam for which the mean of all scores was 40 and the standard deviation was 10. _8. What is Elsa's z-score on her first exam? C. 0.7 D. 0.6 A. 0.5 B. 0.4 9. What is Elsa's z-score on her second exam? A. 0.5 C. 2.0 B. 1.0 D. 2.5 10. In comparison to the other students, where did Elsa do better? C. Both exams A. First Exam B. Second Exam D. Connot be solved
An opinion poll asks a simple random sample of 1500 adults how they view the state of the economy. Suppose that 73% of all adults would say "good" if they were asked. In repeated samples, the sample proportion p^ who say "good" would follow a normal distribution with mean having a value of
Lengths of pregnancies of women are normally distributed with a mean of 266 days and a standard deviation of 16 days. What percentage to the nearest hundredth of children are born from pregnancies lasting more than 274 days? What percentage to the nearest hundredth of children are born from pregnancies lasting less than 246 days?
Five years ago, the average term length for a new car loan was 69.3 months. Loan analysts noticed that the average term lengths have been getting longer and think that now the average term length is more than 69.3 months. A sample of 80 new car loans from from the first quarter of 2021 randomly selected. The sample mean term length is 72 months. This data is widely studied, so we know that that population standard deviation for loan term length is 12 months. Find the test statistic and p-value for this hypothesis test. Round answers to 3 decimals.
The Credit Risk Department of a major bank estimates the default rate on loans under $10,000 to be 4%. The bank will make 2400 loans that are under $10,000 next month. Find the mean of ^p, where ^p is the proportion of defaults on the 2400 loans under $10,000 to be made next month.
A manufacturer of rechargeable batteries took a sample of 16 batteries from day’s production and used them continuously until they were worn out. The number of recharged until failure were: 20, 25, 26, 27, 20, 26, 31, 32, 22, 19, 20, 22, 28, 29 26, and 28.: (2 decimal places only) Find the: mean median mode
The most common intelligence quotient (IQ) scale is Normally distributed with a mean of \$ 100 \$ and a standard deviation of \$ 15 . \$ Many school districts across the country seek to identify "gifted and talented" children for special enrichment programs. Typically, these children must have IQ scores in the top \$ 5 \$%. What is the minimum score to qualify a child for these programs?
The Census Bureau reports that 82% of Americans over the age of 25 are high school graduates. A survey of randomly selected residents of certain county included 1100 who were over the age of 25, and 871 of them were high school graduates, (a) Find the mean and standard deviation for the number of high school graduates in groups of 1100 Americans over the age of 25. Mean = %3D Standard deviation = (b) Is that county result of 871 unusually high, or low, or neither? (Enter HIGH or LOW or NEITHER) Give your answers exactly, or to at least 4 decimal places.

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