Eight independent measurements were made along a line and the standard deviation was found to be 10.55. Determine the error at 99.7% probability. State you answer to two decimal places.
Q: The distribution of the lengths of a commercially caught fish is bell-shaped with mean 24 cm and…
A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…
Q: The time for degree completion was record below. Years 4 6 5 6 5 8 Calculate the standard…
A: Calculation:The number of observations on time for degree completion (years) is, n = 6. Denote xi as…
Q: The mean height of Grade III pupils is 138 cm with a standard deviation of 8 cm. If a sample of 30…
A: given data μ = 138σ = 8n = 30P(x¯ ≥140) = ?
Q: Find the standard deviation of the lengths of the wolves in the entire animal preserve.
A: The mean of the lengths of the wolves in the entire animal preserve is,…
Q: You throw a ball as far as you can 5 times, recording the distance for each throw: 165 feet, 184…
A: since only 5 observation is given we will consider them as sample (n = 5)and population (N = 100)…
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Q: A random sample of 45 cars in the drive-thru of a popular fast food restaurant revealed an average…
A: given that,population standard deviation, σ =4.89sample mean, x =17.79size (n)=45
Q: The ages (in years) of a random sample of shoppers at a gaming store are shown. Determine the range,…
A: Given data:- 12,17,23,14,13,18,21,16,14,19Range=maximum-minimum=23-12=11Mean =…
Q: he senior class has been given a comprehensive examination to assess educational experience. The…
A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…
Q: The ACT math scores of a particular high school in New Jersey are approximately normally…
A: Given that 99.7% of the scores, centered about the mean, are between 200 points and 800 points. So…
Q: Five hundred children participated in a field demonstration. Their heights averaged 110 cm with a…
A: Let X be a random variable such that X: Height of the children Since the sample is large (500)…
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Q: The average family spends $112 at the grocery store each week with a standard deviation of $35.…
A: Step 1:We have given that :mean(μ)=$112satndard dwviation(σ)=$35X is the amount spent by the…
Q: Steven ran the 100 meter dash in 13 seconds. What is his T-score if the class mean was 14 seconds…
A: t statistic
Q: A standardized test has a pop. mean of 152 and a standard deviation of 16. Molly scores at the 91st…
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Q: 5. Find the standard deviation. (Round to 3 decimals.)
A:
Q: To find an 88% confidence interval for mean body temperature of healthy US adult women using the…
A: Sample mean, x¯ = 98.382 sample standard deviation = s = 0.712 sample size, n = 50 Here the sample…
Q: An archer can either hit or miss his target. The probability of hitting a target is 60.0% . Suppose,…
A: Given data : Probability (p) = 0.60 Number of Attempts (n) = 19 Binomial to normal Approximation is…
Q: A student takes a multiple-choice test that has 6 questions. Each question has four choices. student…
A: It is given that, A student takes a multiple-choice test that has 6 questions i.e. n=6 Each…
Q: The distribution of head circumference for full term newborn female infants is approximately normal…
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Q: The mean number of eggs that a person consumes per year is 293.6 pieces. Assume that the standard…
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Q: The average high temperature in Anchorage, AK in June is 63°F with a standard deviation of 1.6°F.…
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Q: A person completes a timed task and is told that their z-score for the task is 1.36. The mean for…
A: Given: Population mean (µ) = 10.75 Population standard deviation (σ) = 2.40 z-score = 1.36
Q: Find the indicated probability. The incomes of trainees at tthe local mill are normally distributed…
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Q: Calculate and answer. Show complete solution. The height of adolescent females in Canada is said to…
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Q: Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard…
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Q: The distances golf balls travel under laboratory testing conditions are normally distributed. The…
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Q: he lengths of pregnancies are normally distributed with a mean of 266 days and a standard deviation…
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Q: Based upon past flight data, the average weight of checked baggage was 44.5 pounds with a standard…
A: Given that X~N( μ = 44.5 , ? = 3.6 ) μ = 44.5 , ? = 3.6 , n = 400 Z-score =( x - μ )/?
Q: As a group, the Dutch are among the tallest people in the world. The average Dutch man is 184 cm…
A: given data normal distribution μ = 184σ = 8P(170<x<180) = ?
Q: ufacturer of bolts has a quality-control policy that requires it to destroy any bolts that are more…
A: Answer Mean [μ] =15Standard deviation [σ ] =0.10It is more than 4 standard deviations..
Q: in 2020, a sample of 12 monarchs had an average wingspan of 6.3 cm. this year a new sample of 12 had…
A: Given that For year 2020 Sample size (n1)=12 monarchs Sample mean=6.3 Population standard…
Q: The tourist bureau of the Caribbean Islands surveyed a sample of 5 United States tourists as they…
A: Standard deviation :
Q: Assume that the readings on the thermometers are normally idstributed with a mean of 0" and a…
A: Normal distribution is a continuous distribution which has many real life applications. Normal curve…
Q: On a nationwide math test, the mean was 58 and the standard deviation was 4. If Roberto scored 70,…
A:
Q: The standard deviation in the sample means is called the margin of error.
A: Answer : False The given statement is incorrect.
Q: DECIMAL FORM: 15 17 18 19 20 21 22 23 24 P(X) 0.03 0.09 0.18 0.18 0.15 0.26 0.6 0.03 0.03
A: Formula used. E(x)= ∑x×p(x) E(x2 )=∑x2 ×p(x) Var(x)=E(x2 ) - [E(x)]2
Q: Find the range and the standard deviation (correct to two decimal places). 81, 91, 96, 96, 96 a)…
A: From the given information we find the range and standard deviation.
Q: The average driver spends $54 at the gas station each week with a standard deviation of $8. Assuming…
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Q: You want to know the percentage of utility companies that earned revenue greater than 94 million…
A: Given Mean(μ)=60standard deviation(σ)=15
Q: The latest SAT scores are out. The average SAT score for graduating seniors is 1059, and the…
A: We have given that Mean(µ) = 1059Standard deviations (σ) = 210
Q: Solve the problem. Round to the nearest tenth. min one region, the September energy consumption…
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Q: In order to determine the average weight of carry-on luggage by passengers in airplanes, a sample of…
A: 1. From the given information, the sample size is 250. The population standard deviation is 2.5.…
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- A population has a mean u = 87 and a standard deviation o = 28. Find the mean and standard deviatio sample sizen=49. =(Simplify your answer.) (Simplify your answer.) Enter your answer in each of the answer boxes. ch %3DSolve the problem. Round to the nearest tenth unless indicated otherwise.A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and a standard deviation of 50. Find P80, the score which separates the lower 80% from the top 20%.Sketch the distribution and shade the area corresponding to the probability you want to find. Then. find the probability. The average commute time in Orange County is normally distributed and 25% of commuters take more than 30 minutes to commute. The standard deviation of such commutes is 6 minutes. A. What is the average commute time? B. What percentage of commuters takes less than 15 minutes to commute? C. What percentage of commuters takes between 25 and 35 minutes to commute?
- A particular fruit's weights are normally distributed, with a mean of 334 grams and a standard deviation of 6 grams. The heaviest 11% of fruits weigh more than how many grams? Give your answer to the nearest gram. Check AnswerIt is desired to test whether the average weight of men taller than 175 cm is 75 kg. Which of the following is the H0 hypothesis in this test? (Note: Take into account the rest of the span class-math tex fe span text that can be seen on the pages. a) μ = 75 b) μ= 75 Is not equal c) μ = 175 d) μ = 175 e) μ = 175 Is not equalEf 610.
- The IRS claims it takes an average of 3.7 hours to complete a 1040 tax form. Assume the time t the form is normally distributed with a standard deviation of 15 minutes or 0.25 hours. complete Use the Cumulative Z-Score Table to answer the following questions. Write your answer as a percent using 2 decimal places. What percent of people would you expect to complete the form in less than 3.45 hours? What percent of people would you expect to complete the form-in more than 3.45 hours? What percent of people would you expect to complete the form in less than 3.4 hours? What percent of people would you expect to complete the form in more than 3.4 hours? What percent of people would you expect to complete the form between 3.4 and 3.45 hours?Assume that adults have IQ scores that are normally distributed with a mean of u = 105 and a standard deviation a = 15. Find the probability that a randomly selected adult has an IQ between 91 and 119. Click to view page 1 of the table. Click to view page 2 of the table. The probability that a randomly selected adult has an IQ between 91 and 119 is. (Type an integer or decimal rounded to four decimal places as needed.) Enter your answer in the answer box. MacBook Air esc 888 %23 & 2 3 4 5 6 7 8 Q E R T Y tab P A D G H caps lock K V в N M > ? control option command command optionAssume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15. Find P40, which is the IQ score separating the bottom 40% from the top 60%. Round your answer to nearest tenth.
- You want to know the percentage of utility companies that earned revenue less than 67 million dollars. If the mean revenue was 50 million dollars and the data has a standard deviation of 7 million, find the percentage. Assume that the distribution is normal. Round your answer to the nearest hundredth.Assume that the readings on the thermometers are normally distributed with a mean of 0° and standard deviation of 1.00°C. A thermometer is randomly selected and tested. Draw a sketch and find the temperature reading corresponding to P34, the 84th percentile. This is the temperature reading separating the bottom 84% from the top 16%. Click to view page 1 of the table. Click to view page 2 of the table. Which graph represents P ? Choose the correct graph below. 84 A. В. OC. D. Ay X The temperature for P84 is approximately (Round to two decimal places as needed.)Answer in 30 mins.
