parate sheet of paper 1. The school head observes an increase of internet expenditures of learners for months already with a standard deviation of 15 pesos. How many learners must be sampled in order to be 99% confident that the amount spent on internet expenditures will be within P 2.00 of the true mean?

Q: The daily revenue at a university snack bar has been recorded for the past five years. Records…

A: Question 1 option a

Q: The ages (in years) of a random sample of shoppers at a gaming store are given below: 12 2 23 15 20…

A: Let us define X as the given observations. X: 12, 21, 23, 15, 20, 16, 19, 17, 14, 16. Consider,…

Q: 4. Consider that in a population of Filipino adults ages 18 to 65, Body Mass Index (BMI) is normally…

A: Given: X~N(μ,σ)μ=28σ=6

Q: Consider a sample with a mean of 500 and a standard deviation of 100. What are the z-scores for the…

A: The mean is 500 and the standard deviation is 100.

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A: Given : -

Q: Suppose the heights of men are normally distributed with mean, ?μ = 69 inches, and standard…

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Q: 4, The verbal part of the Graduate Record Exam (GRE) has a mean (u) of 500 and a standard deviation…

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Q: 1. The mean serum level measured in 12 patients twenty-four hours after they received a newly…

A: Hypothesized Population Mean (µ) = 1 mg/dl The provided sample mean is = 1.2 mg/dl Sample standard…

Q: 1.)Heights of adult males in the US are approximately normally distributed with mean 70 inches (5 ft…

A: Note: Hey, since there are multiple questions are posted, we will answer first question for you. If…

Q: Two samples of scores on a survey are as follows: Sample A: 10 7 6 Sample B: 183 10 112 7 28. What…

A:

Q: Suppose you add 2 days to each datum in the duration of hospital stay. a. What is the effect on the…

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Q: According to Dietary Goals for the United States (1977), high sodium intake may be related to…

A:

Q: 2. Given a standard deviation of 3.7, what is the mean if1 0% of the population has a distribution…

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Q: A Survey among Seniors revealed that the number of hours spent Studying the week before final exams…

A: Give Standard deviations=7 Mean=25 P(x>40)=?

Q: For a population with a mean of μ = 55 and a standard deviation of σ = 69, what is the standard…

A: Answer - For a population with a mean of μ = 55 and a standard deviation of σ = 69,             what…

Q: a. What is the difference between carrier's highest data speed and the mean of all 50 data speeds?…

A: Here Given  Highest Speed measured=76.6 Mbps Sample Size=50 Sample mean=x¯=18.68 Sample sd= s= 37.17…

Q: The Good-Guys Car Dealership has tracked the number of used cars sold at its downtown dealership.…

A:

Q: 1. The Prior to medical visits, patients are asked to complete a self-administered medical history…

A:

Q: What is the standard deviation for the following set of N= 5 scores: 10, 10, 10, 10, and 10? (Note:…

A: Given data 10,10,10,10,10and N = 5Mean (μ) :  10+10+10+10+105μ = 505=10

Q: The number of hours worked per week for a sample of ten students is shown below. Student Hours 1 2…

A: Note- As per our policy we can answer the first 3 sub-parts of a question.   Given information- The…

Q: Suppose, according to a 1990 demographic report, the average U. S. household spends $90 per day.…

A:

Q: Unprotected sex with a partner who is infected with HSV-2 (genital herpes) and who is currently…

A:

Q: 4-A health maintenance organization (HMO) wants to estimate the mean length of a hospital stay. How…

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Q: 2 درجات annual expenditure per 25-to 34-year-old consumer for health care is $ 1468. Students at a…

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Q: A medical investigation claims that the average number of infections per week at a hospital in…

A: Let us first state the hypotheses and find what we need to prove Let us assume that  H0: μ=16.3.…

Q: In a recent study, the Centers for Disease Control reported that diastolic blood pressures (in mmHg)…

A: Given that, Mean=80.5 Standard deviation=9.9

Q: The number of people standing in the line to vote at the last Presidential Election at 7:00 P.M. was…

A: In statistics, three measures of central tendency are widely used. These three measures are also…

Q: 24. Suppose annual salaries for sales associates at Target have a mean of $32,500 and a standard…

A: According to the provided information, Mean (μ) =$32500 Standard Deviation (σ) = $2500

Q: For a recent "Smartest State in America" article, a journalist wants to know how many people with a…

A: The mean is 5,000,000 and the standard deviation is 450,000.

Q: (a) Compute the sample standard deviation for the number of breweries east of the Mississippi River.…

A: Given: State No. of breweries Georgia 22 Illinois 52 Kentucky 13 Maine 38 Maryland 23…

Q: The monthly income of residents of Daisy City is normally distributed with a mean of $3000 and a…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

Q: Suppose the heights of men are normally distributed with mean, µµ = 70 inches, and standard…

A: Given information Population means µ = 70 inches Standard deviation σ = 4 inches We have to find the…

Q: Q3 :- :- if you know the standard deviation = 3 for measured data, what is the variance ?

A: Given in question  Standard deviation = 3

Q: given that the sample mean=105, pop standard deviation=27, n=44, a=0.01 what is the critical s-score

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Q: Consider the following data: 10,6,1,2,8,9 Calculate the value of the sample standard deviation.…

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Q: - A large on-demand video streaming company is designing a large-scale survey to determine the mean…

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Q: An employer claims that full time employees have a mean income of $35,000. A sample of 200 employees…

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Q: An obstetrician read that a newborn baby loses on average 7 ounces in the first two days of his or…

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Q: A firm’s marketing manager believes that total sales for next year will follow the normal…

A: Given information- Population mean, µ = $3200,000 Population standard deviation, σ = $250,000 We…

Q: 1. There are 95% of students at school weigh between 62 kg and 90 kg at Westchester Community…

A: 95% of the data lies between X¯-1.96×σ and X¯+1.96×σ hence we get, X¯-1.96×σ = 62 X¯+1.96×σ = 90…

Q: Test the claim that for the adult population of one town, the mean salary is $28,000. If a sample of…

A: Given information- Sample size, n = 25 Sample mean, x-bar = $23,500 Sample standard deviation (s) =…

Q: For a population with a mean of μ = 55 and a standard deviation of σ = 17, what is the standard…

A: We have to find correct answer..

Q: In the p-chart of Audit Data shown below, if the estimate of the standard deviation was 0.0724, what…

A: Solution: Given information: The control limits of  p chart are  UCL = 0.4203 Central Line = P =…

Q: In order to set rates, an insurance company is trying to estimate the number of sick days that full…

A: 53. The provided information is  The  population standard deviation is  σ=2.8 days α=0.05 The…

Q: sample of 25 cappuccinos shows a mean of 42.1 oz of espresso and a standard deviation of 0.38 oz. A…

A: Given: Sample size, n = 25 Sample mean,  = 42.1 Standard deviation, s = 0.38

Q: Sketch a normal distribution/bell curve with a mean of 60 and a standard deviation of 20. What…

A: Let X be the random variable from normal distribution with mean (μ) = 60 and standard deviation (σ)…

Q: The mean, µ, is (Round to the nearest tenth as needed.) The variance, o², is| (Round to the nearest…

A: Given : The distribution is binomial distribution  and  n = 50 , p = 0.2

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.