find and interpret the z-score for the darta value given/ the value 250 in a dataset with mean 208 amd standard deviation 21.
Q: The assembly time required for certain product is normally distributed with mean 31.2 minutes and…
A: given data normal distributionmean(μ) = 31.2standard deviation (σ) = 4.6for x = 39.5Z = ?
Q: eights of women aged 20 to 29 are approximately Normal with mean 64 inches and standard deviation…
A:
Q: The heights of the 430 Candidates for the Elite Military Unit have an approximate normal…
A:
Q: the weight of male babies less than 2 months old in US is normally disrtibuted with mean 11.5 pounds…
A: We have given that, A random variable X i.e. the weight of male babies follows a normal distribution…
Q: The mean age when smokers first start is 13 years old with a population standard deviation of 1.9…
A: Givenn=31x=12.2σ=1.9α=0.10
Q: The mean age when smokers first start is 13 years old with a population standard deviation of 1.8…
A: Given , Population mean = μ = 13 years Population standard deviation = σ = 1.8 years Sample size =…
Q: Men's heights are normally distributed with mean 69.3 inand standard deviation 2.94 in. Women's…
A: Let X denote the Women's heights and it follows normal distribution with mean μ=63.8 in and standard…
Q: what is the minimum accepted score
A:
Q: A WTA employee takes a sample of travel times for route 90A. Historically the mean travel time is…
A: From the provided information,Sample size (n) = 31Sample mean (x̄) = 21.4Sample standard deviation…
Q: A radio network determined that the time taken to play a baseball game is normally distributed with…
A: Answer: From the given data, Let X: The time taken to play a basket ball game X is normally…
Q: The retirement age of National Football League (NFL) players is Normally distributed with a mean of…
A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…
Q: When the 583 female workers in the 2012 GSS were asked how many hours they worked in the previous…
A: Givensample size(n)=583significance level(α)=0.01
Q: The mean age when smokers first start is 13 years old with a population standard deviation of 2…
A: Given that Sample size n =31 Sample mean =12.1 Population standard deviation =2
Q: The mean age when smokers first start is 13 years old with a population standard deviation of 2…
A: From the provided information, Sample size (n) = 31 Sample mean (x̄) = 12.4 Population standard…
Q: What percentage of organs weighs less than 250 grams or more than 350 grams in a bell-shaped…
A: mean=μ=300, σ=sd=50X~N(300, 50)P(X<250or X>350)=?
Q: The number of orders received daily by an online vendor of used CDs is normally distributed with…
A: Given that. X~N( μ , ?^2 ) μ=210 , ?=16 Z-score =( x - μ )/?
Q: The mean age when smokers first start is 13 years old with a population standard deviation of 2…
A: Given Sample=30 Mean=12.2 Standard deviation=2 Significance level=0.01
Q: The number of chocolate chips in a bag of chocolate chip cookies is approximately normally…
A: Given, chocolate chip cookies are normally distributed with mean μ = 1197 and σ = 142 We use the…
Q: The mean age when smokers first start is 13 years old with a population standard deviation of 2…
A: The hypotheses for the test is given below.Null hypothesis:H0: µ = 13Alternative hypothesis:H1: µ ≠…
Q: The mean age when smokers first start is 13 years old with a population standard deviation of 1.8…
A: Hypothesis: Null hypothesis: H0: μ=13Alternative hypothesis: H1: μ≠13 The test statistic is obtained…
Q: Suppose a sample of 47 chocolate bars has a mean weight of 134.2 with standard deviation 7. Test the…
A:
Q: The number of orders received daily by an online vendor of used CDs is normally distributed with…
A: Answer:- Let, X be a random variable represents the number of orders received daily by an online…
Q: The results of a common standardized test used in psychology research is designed so that the…
A: Givenmean(μ)=135standard deviation(σ)=40
Q: Do people who exercise regularly have a cholesterol level less than the recommended level of 140? A…
A: The summary of statistics is,
Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 100100 and a standard…
A: percentage of values greater than 145 = 0.15% Explanation:Step 1: Define what the empirical rule…
Q: Standardized Exp(1) N(0, 1) Standardized Exp(1) - N(0, 1) 30 35 40 45 50 In this quuton , the mill…
A: Solution: As per the guidelines first three parts should be answered.
Q: The number of chocolate chips in a bag of chocolate chip cookies is approximately normally…
A: It is given that Mean, μ = 1281Standard deviation, σ = 118
Q: The mean age of 95 teachers in a school is 36 years with a standard deviation of 4.6. Mr.Data is 28…
A: The z-score is -1.74.The percentage of ages that is younger than Ms. Management is…
Q: Is sea level the same along all coastal regions? To examine this sample of 12 coastal locations in…
A: Note: “Since you have posted a question with many sub-parts, we will solve three sub-parts for you.…
Q: The monthly rainfall (mm) in Batu Pahat recorded for the past 20 years was found to be normally…
A:
Q: Male heights are normally distributed with a mean of 70 inches and standard deviation 2. Female…
A: Given that. For male X~N( μ , ?) μ=70 , ?=2 , x=73 For female μ=64 , ?=2.5 ,x=67 Z-score =(…
Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 103103 and a standard…
A: The percentage of IQ scores at least 58 is approximately 32%.Explanation:The empirical rule (also…
Q: Mean if 65.6 std deviation of 3.1 what is the ZScore of arm span of 73?
A: Mean, µ = 65.6 and the standard deviation, σ = 3.1.
Q: The historical data of Velvetta Inc., a healthcare products manufacturer, have shown that in a…
A:
Q: The heights of men aged 20 to 29 are normally distributed with a mean of 69.2 inches and a standard…
A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…
Q: Assume that adults have IQ scores that are normally distributed with a mean of 100.3 and a standard…
A: Assume that adults have IQ scores that are normally distributed with a mean of 100.3 and a standard…
Q: A radio network determined that the time taken to play a baseball game is normally distributed with…
A: Answer: From the given data, mean(μ) = 160 standard deviation(σ) = 14
Q: What are the cutoff numbers for the number of chocolate chips in acceptable cookies?
A: Let X be the random variable for the number of chocolate chips in a popular brand. X ~ N(μ=23,σ=1.3)…
Q: vg canadian worker spends 29.88 minutes driving to work each day. Assume the distribution of driving…
A: Given Information: On average Canadian worker spends 29.88 minutes driving to work each day. i.e.,…
Q: Apply 98-95-99.7 rule and estimate the heights of for 68%, 95% and 99.7% male adults in the…
A: Heights of male adults in the United States are normally distributed with mean 69.1 and standard…
Q: Compute z-scores and use them to compare values from different data sets Question In a recent…
A: From the provided information, The mean price for a 2000 sq ft home in Florida (µF) = $240,000…
Q: The mean age when smokers first start is 13 years old with a population standard deviation of 2…
A: Solution-: Given: μ0=13, σ=2, x¯=12.3, n=34, α=0.01=1% We want to find, (a) Null and alternative…
Q: The number of chocolate chips in a popular brand of cookie is normally distributed with a mean of 21…
A:
Q: The mean length of six-year-old rainbow trout in the Arolik River in Alaska is 481 millimeters with…
A: Given data, μ=481σ=41P(X<501)=?
find and interpret the z-score for the darta value given/
the value 250 in a dataset with
Step by step
Solved in 2 steps
- The mean age when smokers first start is 13 years old with a population standard deviation of 1.8 years. A researcher thinks that smoking age has significantly changéd since the invention of ENDS-electronic nicotine delivery systems. A survey of smokers of this generation was done to see if the mean age has changed. The sample of 31 smokers found that their mean starting age was 12.2 years old. Do the data support the claim at the 5% significance level? What are the correct hypotheses? Ho: Select an answerv?v уears Ha: Select an answerv?v years The test is: O Two-tailed O One-tailed Suhmit Ouaction 8. y W e %24The mean age when smokers first start is 13 years old with a population standard deviation of 1.9 years. A researcher thinks that smoking age has significantly changed since the invention of ENDS-electronic nicotine delivery systems. A survey of smokers of this generation was done to see if the mean age has changed. The sample of 31 smokers found that their mean starting age was 12.3 years old. Do the data support the claim at the 5% significance level? What are the correct hypotheses? Ho: Select an answer v ? v years H1: Select an answer v years Based on the hypotheses, find the following: Test Statistic z = (Round to 4 decimal places.) Critical Values = + (Round to 2 decimal places.) Based on the above we choose to Select an answer The correct summary would be: Select an answer that the mean age smokers first start is different than 13.What is the forumula for standard deviation
- The mean age when smokers first start is 13 years old with a population standard deviation of 1.9 years. A researcher thinks that smoking age has significantly changed since the invention of ENDS-electronic nicotine delivery systems. A survey of smokers of this generation was done to see if the mean age has changed. The sample of 31 smokers found that their mean starting age was 12 years old. Do the data support the claim at the 1% significance level? What are the correct hypotheses? Ho: LU Test Statistic z = #v Critical Values =+ O OF 13 H₁: u Based on the hypotheses, find the following: 13 o years (Round to 4 decimal places.) (Round to 2 decimal places.) Based on the above we choose to Reject the null hypothesis years The correct summary would be: There is enough evidence to support the claim smokers first start is different than 13. that the mean ageThe mean age when smokers first start is 13 years old with a population standard deviation of 1.9 years. A researcher thinks that smoking age has significantly changed since the invention of ENDS- electronic nicotine delivery systems. A survey of smokers of this generation was done to see if the mean age has changed. The sample of 30 smokers found that their mean starting age was 12.2 years old. Do the data support the claim at the 1% significance level? What are the correct hypotheses? Ho: Select an answer v ? v years H3: Select an answer v years The test is: O One-tailed O Two-tailedWhat are mean and standard deviation for the heights of people in that country? What is your z-score with these new parameters? The average height for Pilipino men are 5 foot, 3.7 inches with a standard deviation of 2.92 inches. The average height for Pilipino women are 4 foot, 11 inches with a standard deviation of 2.8 inches.
- What is the verbal SAT score such that only 16% of admitted students had a higher score? Mean=660 Standard Deviation = 40Suppose the total weight of passengers and luggage on an airline flight is normally distributed with mean 8914 and standard deviation 32 What is the 2.28th percentile of total passenger weightwhat is the minimum pregnancy length that can be in the top 8% of pregnancy given a mean of 265 and a standard deviation of 12
- The number of orders received daily by an online vendor of used CDs is normally distributed with mean 260 and standard deviation 20. The company has to hire extra help or pay overtime on those days when the number of orders received is 310 or higher. What percentage of days will the company have to hire extra help or pay overtime? Click the icon to view the standard normal distribution table. The company will have to hire extra help or pay overtime on % of days.The number of orders received daily by an online vendor of used CDs is normally distributed with mean 240 and standard deviation 16. The company has to hire extra help or pay overtime on those days when the number of orders received is 264 or higher. What percentage of days will the company have to hire extra help or pay overtime? Click the icon to view the standard normal distribution table. The company will have to hire extra help or pay overtime on % of days.The heights of women aged 20 to 29 are approximately Normal with mean 64 inches and standard deviation 2.7 inches. Men the same age have mean height 69.3 inches with standard deviation 2.8 inches. (a) What is the z-score for a woman 70 inches tall? z-score = What is the z-score for a man 80 inches tall? z-score =