Question 7 of 16Suppose IQ scores have a bell-shaped distribution with a mean of 100 and a standarddeviation of 15. Use the Empirical Rule to answer the following.a. What percentage of IQ scores are between 85 and 130?AnswerIf needed, round your answers to 1 decimal placeb. What percentage of IQ scores are over 115?Answer =If needed, round your answers to 1 decimal placec. 99.7% of IQ scores are betweenE andWrite the lower number in the first space and the higher number in the second space

Given that X~N( μ =100 , ? = 15 ) μ = 100 , ? = 15

Answered: Question / öf 16 Suppose IQ scores have…

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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The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 118 and standard deviation of 24 .Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.a. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places. ________%b. If you sampled 2000 people, how many would you expect to have BP> 160? Give your answer to the nearest person.________ peoplec. Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1?________ %d. Your doctor tells you you are in the 30th percentile for blood pressure among US adults. What is your systolic BP? Round to 2 decimal places._______ lbs
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Suppose you wish to determine if the mean IQ of students on a certain campus is different from the mean IQ in the general population, 100. To conduct this study, you obtain a simple random sample of 90 students on this campus, administer an IQ test, and record the results. The mean IQ of the sample of 90 students is found to be 106.5 with a standard deviation of 13.1. Complete parts (a) through (c) below. Question Help v Click the icon to view the t-distribution table. (a) Construct a hypothesis test Ho: H= Ho versus H,: µ#Ho for Ho = 102, 103, 104, 105, 106, 107, 108, 109, 110, and 111 at a = 0.05 level of significance. Determine the test statistics for Hn = 102, 103, 104, 105, and 106. Ho = 102 to =O Ho = 103 to =D to =D to =0 to =D0 %3D Ho = 104 Ho = 105 Ho = 106 %3D (Round to two decimal places as needed.) Enter your answer in the edit fields and then click Check Answer. Question Viewer 6. parts 6 remaining Clear All Check Answer MacBook Air 888 F7 FS esc F3 F2 & #3 $4 dele 8 9 1 3…
Please answer all thoroughly and clearly Grade 12 Data Management
Homework: Week 6 Sa Score: 0 of 1 pt 5 of 14 (4 complete) HW Score: 28.57%, 4 of 14 5.4.3 Question Help A population has a meanu= 80 and a standard deviation o = 21. Find the mean and standard deviation of a sampling distribution of sample means with sample size n= 232. (Simplify your answer.) In Enter your answer in the answer box and then click Check Answer. Check Answer Clear All 1 part remaining earch
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Scores on the Wechsler Adult Intelligence Scale for the 2020 to 3434 age group are approximately Normally distributed with a mean of 110 and a standard deviation of 15. How high must a person score to be in the top 5%5% of all scores? Enter your answer as a whole number.
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I’ve already posted this one, but I’m posting it again, because I need to be shown what to input into my TI-84 Plus calculator to solve.
What was the age distribution of prehistoric Native Americans? Extensive anthropological studies in the southwestern United States gave the following information about a prehistoric extended family group of 84 members on what is now a Native American reservation. For this community, estimate the mean age expressed in years, the sample variance, and the sample standard deviation. For the ciass 31 and over, use 35.5 as the class midpoint. (Round your answers to one decimal place.) Age range (years) Number of individuals 1-10 11-20 19 21-30 15 31 and over 40 10

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