Assume that speeds on a given road are normally distributed with a mean speed of 35 mph and a standard deviation of 5 mph. Find the 98th percentile speed (thespeed at or below which 98% of the traffic moves).Click here for page 1 of the Areas under the Normal Curve TableClick here for page 2 of the Areas under the Normal Curve Table......The 98th percentile speed is mph. (Round to the nearest integer as needed.)

Solution-: Let, X= The speed on a given road Given: μ=35mph,σ=5mph ∴X→ N(μ=35,σ2=52) We find 98th…

Answered: Assume that speeds on a given road are…

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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Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in their blood. Also listed are statistics from a study done of IQ scores for a random sample of subjects with high lead levels. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Click the icon to view the data table of IQ scores. a. Use a 0.01 significance level to test the claim that the mean IQ scores for subjects with medium lead levels is higher than the mean for subjects with high lead levels. What are the null and alternative hypotheses? Assume that population 1 consists of subjects with medium lead levels and population 2 consists of subjects with high lead levels. OA. Ho: H₁ H₂ H₁ H₁ H₂ C. Ho: M₁ = ₂ H₁ H₁ H₂ OB. Ho: H₁ H₂ H₁: µ₁ µ₂ OD. Ho: H#H2 H₁: H₁ H₂
Assume that a randomly selected subject is given a bone density test. Those test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find the bone density test scores that can be used as cutoff values separating the lowest 17% and highest 17%, indicating levels that are too low or too high, respectively. Sketch the region. Choose the correct graph below. O A. O B. C. D. - Za Za - Za Za - Za Za The bone density scores are (Use a comma to separate answers as needed. Round to two decimal places as needed.)
Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. 0.1026 The indicated IQ score is (Round to the nearest whole number as needed.)
Use a calculator or computer software to generate a normal quantile plot for the data in the accompanying table. Then determine whether the data come from a normally distributed population. Click the icon to view the data set. Generate a normal quantile plot for the data. Choose the correct graph below. OA. 3.00 2.00- 1.00- 0.00- -1.00- -2.00- -3.00- 0 100 200 300 400 500 X Value Data table Space Flight Durations (hours) 0 350 100 400 300 200 50 150 200 OB. 3.00- 2.00- Print 1.00- 0.00- -1.00- -2.00- -3.00+ 0 BEELD 100 200 300 400 500 X Value 300 300 200 100 450 200 50 0 0 400 100 450 G Determine whether the data come from a normally distributed population. Choose the correct answer below. OA. The distribution is not normal. The points are not reasonably close to a straight line. OB. The distribution is normal. The points show a systematic pattern that is not a straight-line pattern. OC. The distribution is normal. The points are not reasonably close to a straight line and do not show…
Please answer with explanation. I will really upvote
The histogram below describes the distribution of weights (in lbs) of 35 children age 9-10 from a local elementary school. ps://canvas.ucsc.edu/courses/49913/quizzes/69575/take?preview=1 5/23, 12:01 PM fouanbau 10- 8- 6 4- 2- 30 60 Weight in lbs The third quartile weight of these children is... 40 Quiz: Final Exam - on-line portion 50 70 80 90 100 110 3/7
One graph in the figure represents a normal distribution with mean = 15 and standard deviation o = 2. The other graph represents a normal distribution with mean u = 7 and standard deviation o = 2. Determine which graph is which and explain how you know .. Choose the correct answer below. OA. Graph A has a mean of μ = 15 and graph B has a mean of µ = 7 because a larger mean shifts the graph to the left. OB. Graph A has a mean of µ = 15 and graph B has a mean of μ = 7 because a larger mean shifts the graph to the right. OC. Graph A has a mean of u = 7 and graph B has a mean of μ = 15 because a larger mean shifts the graph to the right. G D. Graph A has a mean of μ = 7 and graph B has a mean of µ = 15 because a larger mean shifts the graph to the left. 7 15 B M
Psychology students at a university completed the Dental Anxiety Scale questionnaire. Scores on the scale range from 0 (no anxiety) to 20 (extreme anxiety). The mean score was 11 and the standard deviation was 3.5. Assume that the distribution of all scores on the Dental Anxiety Scale is normal with u = 11 and o = 3.5. Complete parts a through c. Click here to view a table of areas under the standardized normal curve. a. Suppose you score a 18 on the Dental Anxiety Scale. Find the z-value for this score. z= 2 (Round to the nearest hundredth as needed.) b. Find the probability that someone scores between 10 and 15 on the Dental Anxiety Scale. P(10sxs 15) = (Round to four decimal places as needed.) c. Find the probability that someone scores above 17 on the Dental Anxiety Scale. P(x> 17) =| (Round to four decimal places as needed.)
Please, find Arthematic Mean, Geomatric Mean, Harmonic Mean, Mode & Median of the given data. ASAP
Please see attached.
Question 1 1. For the following data: 22, 25, 26, 27, 27, 29, 30, 36, 36, 44. Determine the frequency and plot the column bar. • Calculate the average, standard deviation, mode, median.
Assume that adults have IQ scores that are normally distributed with a mean of u= 105 and a standard deviation o = 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. ces 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.) Exp The use

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