The mean exam score for 44 male high school students is 21.7 and the population standard deviation is 52. The mean exam sccine for 53 female high school students is 198 and the populationstandard deviation is 4.3. At a-001, can you reject the claim that male and female high school students have equal exam scores? Complete parts (a) through inClick here to view pagethe standard normal distribution tableClick here to view page 2 of the standard normal distribution table(a) identify the claim and state H, and HWhat is the claim?OA Male high school students have lower exam scores than female studentsOB. Male and female high school students have equal exam scoresOC. Male and female high school students have different exam scoresOD. Male high school students have greater exam scores than female students

The given claim is that the male and females high school students have equal exam scores.

Answered: The mean exam score for 44 male high…

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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5) Below is the standard deviation for extreme 10k finish times for a randomly selected group of women and men. Chose the statement that best summarizes the meaning of the standard deviation. Women: s = 0.17 Men: s = 0.21 A) The distribution of women's finish times is less varied than the distribution of men's finish times. B) The distribution of men's finish times is less varied than the distribution of women's finish times. C)On average, men's finish times will be 0.21 hours faster than the overall average finish time. D)On average, women's finish times will be 0.17 hours less than men's finish times.
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 117 and standard deviation of 26 . 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) Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1? Give your answer rounded to two decimal places. (c). Your doctor tells you you are in the 30th percentile (e.g. bottom 30%) for blood pressure among US adults. What is your systolic BP? Give your answer rounded to two decimal place
A population has a mean of 90 and a standard deviation of 7. If it is sampled repeatedly with samples of size 144, a) what is the mean and standard deviation of the sample means? (Round to 4 decimal places) b) What is the probability the sample mean is greater than 90.87? (Round to 4 decimal places) c) What is the probability the sample mean is less than 92.16? (Round to 4 decimal places)
The average math SAT score is 523 with a standard deviation of 118 A particular high school claims that its students have unusually high math SAT scores A random sample of 50 students from this school was selectedand the mean math SAT score was 540the high school justified in its ? Explain
Please answer 12.a) 12.b(------,-------) show calculation and 3 decimal places interpretion..........
according to the bureau of labor statistics the average number of weeks an individuals is unemployes is 27 weeks with a standard deviation of 8 weeks. suppose a random sample of 39 unemployes individuals is taken find the propbablity that the sample average number of weeks unemployed is within 0.6 weeks of the population average
9
A local chess club claims that the length of time to play a game has a standard deviation of less than 11 minutes. Write sentences describing type I and type Il errors for a hypothesis test of this claim. A type I error will occur if the actual standard deviation of the length of time to play a game is V 11 minutes, but you the null hypothesis, A type Il error will occur if the actual standard deviation of the length of time to play a game is 11 minutes, but you the null hypothesis,
A researcher collected data for the monthly rate of return of a certaincompany’s common stock for the past few years. The data is included below. Choose the correct answer for the interpretation of the quartiles of the data set. A) All monthly returns within one standard deviation of the mean are contained in the first quartile, all monthly returns within two standard deviations of the mean are contained in the second quartile and all monthly returns within three standard deviations of the mean arecontained in the third quartile. B) Of the monthly returns, 25% is less than or equal to the first quartile, 50% are less than or equal to the second quartile, and 75% are less than or equal to the third quartile. C) The first quartile is the lower bound of plausible monthly returns, and the third quartile is the upper bound of plausible monthly returns. Any monthly returns outside of these bounds are outliers. The second quartile represents the most common monthly return. D) The first…

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