Problem 1 The lives of a certain type of carpet cleaners are approximately normally distributed with mean of 10 years and standard deviation of 2 years. The manufacturer of the carpet cleaner wants to determine the guarantee period during which the carpet cleaner will be replaced if it fails. If the manufacturer is willing to replace 16% of the carpet cleaners that fail, how many years of replacement guarantee period should the manufacturer offer?

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A: Solution-: Given: \bar{x}=126.2, n=75,s=8.7, Confidence Limit =(126.2±2.57) We want to find the…

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Q: The British government conducts regular surveys of household spending. The average weekly household…

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A: Given data How many outcomes are possible if you toss a coin six times.

Q: 7. What is the median score achieved by a student who recorded the following scores on 10 math…

A: Formula : Median= (5th observation + 6th observation) /2

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A: By using  R programming, a)

Q: e heights of Susa Ada and Rhea were 155 cm 15

A: Given, The heights of Susa, Ada, and Rhea were 155cm,158cm, and 161cm, respectively. The mean height…

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A: Given information: Variable of interest=setting time of cementNo. of observations=15No. of…

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A: Given μ=10σ=2

Q: The mean and the standard deviation of a population are 11795 and 14054 respectively. If n = 50,…

A: It is given that  Mean = 11795 Population standard deviation = 14054 Sample size = 50

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Q: that the number of arrivals is normally distributed. Based on these data, compute a 95% confidence…

A: here calculate sample statistic and then confidence Interval

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Q: N Shoot_lenght Treatment 300 Shoot_lenght Treatment N Mean Median Minimum control 60 7.2383 6.6500…

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A: Given that: H0:p=0.70H1:p<0.70 P-value = 0.0289 Level of significance = 0.05

Q: The estimated 95% Confidence Interval for Mean Income is 22,138 to 22,510. Which of the following…

A: Solution Given the 95% CI for the mean is (22,138 , 22,510)

Q: In a specific year, SAT scores were Normally distributed with mean 1026 and standard deviation 209;…

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Q: Briefly explain how theory development might impact the selection of a sample.

A: Find: The theory development might impact the selection of a sample.

Q: k The test statistic of z= 2.92 is obtained when testing the claim that p *0.548. a. Identify the…

A: Given that Test statistic =2.92 Hypothesis is P=! 0.548

Q: TYPEWRITTEN,

A: Mean = Median = the middle term Mode = the value that is being observed the maximum number of…

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A: Given, Graph of Standard normal distribution:

Q: Suppose the mean blood glucose of a population of adults is 162 with a standard deviation of 58.…

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A: Given Information: Consider the given sorted data: MPG-Automatic MPG-Manual 21.4 21 18.7 21…

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Q: f the maximum error with 0.99 probability is 0.25 and a sample size 400, then the standard deviation…

A: Maximum error=Margin of error=0.25 Sample size; n=400 α=0.01

Q: Suppose data on root length (in mm) were obtained from roots from the three set-ups: (1) negative…

A: Inferential Statistics: This part of statistics deals with making conclusions from the analysis.…

Q: 2. The heights of Susa, Ada, and Rhea were 155 cm, 158 cm, and 161 cm, respectively. What is the…

A: 2. The provided data is  The heights of Susa, Ada and Rhea is 155 cm,158cm, 161cm The mean of 4…

Q: 5. An advertising company plans to market a product to low-income families. A study states that for…

A: From the provided information, Average (µ) = $24596 Standard deviation (σ) = $6256 The company plans…

Q: Oropharyngeal cancer is a disease in which malignant (cancer) cells form in the tissues of the…

A: The objective is to compute for the sensitivity of p16 IHC in diagnosis of oropharyngeal carcinoma.

Q: DANDANG DOLO... Directions: Read and analyze the given problems below. One of the data/…

A: According to policy we supposed to answer only first question kindly report for remaining.

Q: Suppose Table 3b gives us the IQ range and the possible occupation employment, find out what…

A: Given that: 132 128 106 96 104 99 115 112 90 95 127 113 103 96 101 104 90 127 103 106 122 109…

Q: Activity 1: FILL ME OUT! Direction: Fill out the missing parts of the table. Some parts of the table…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Evaluate x = μ+zo if μ= 79.9, z=3.91, and o=4.8. XF (Type an integer or decimal. Do not round.)

A: It is given that  μ = 79.9 z = 3.91 σ = 4.8

Q: The owner of a convenience store has determined that their daily revenue has mean $7,200 and…

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Q: A group of volleyball players consists of four grade-11 students and six grade-12 students. If six…

A: Probability is the chance of occurrence of an event.

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Q: why is it 139 and not 138?

A: Please find the explanation below. Thank you

Q: 3.7.23. Suppose that X and Y are discrete random va ables with 4-x-y PX,Y (x, y) = *(4-x-)!()*()'()*…

A: Given: PX=x,Y=y=4!x!y!4-x-y!12x13y164-x-y       0≤x+y≤4

Q: What value and random error bound would you report if you get the following results: 24.82 s, 25.02…

A: Given:The sample data is given.sample size (n)=5 Find: Random error bound.

Q: Agan Interior Design provides home and office decorating assistance to its customers. In normal…

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Q: Table 2: Number of Employees of San Manuel Corporation Department Number of %(.0000) (a) (b)…

A: The objective is to allocate an appropriate sample size for each department. .