of Egyptian hiero-17.31 Learning Blissymbols. Blissymbols are pictograassisted learning, 12 normal-ability schoolchildren were assigned at random to eachglyphics) sometimes used to help learning-disabled children. In a study of computer-of four computer learning programs. After they used the program, they attemptedprograms:15to recognize 24 Blissymbols. Here are the counts correct for one of the15 9 10 11 11 15 612 22 9 14 20(a) Make a stemplot (split the stems). Are there outliers or strong skewness thatwould forbid use of the t procedures?(b) Give a 90% confidence interval for the mean count correct among all childrenof this age who use the program.Hallur obducto valgus (call it HAY) is a deformati

Answered: Egyptian hiero 17.31 Learning…

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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Students take a test twice and a researcher wants to know if the firest try is a higher score that the second try at the .05 level. Student 1 Student 2 Student 3 Student 4 Student 5 Student 6 Student 7 Student 8 33 35 28 29 32 32 30 34 27 29 32 31 30 29 28 22 (Put: L-Left Tailed, R- Right Tailed, 2 - 2-Tailed) (separate with a comma if there are 2) Try 1 Try 2 1. The graph is 2. The critical value is 3. The test statistic is 4. The 3-decimal p-value is 5. The test statistice is where compared to the CV? (the letter L - Left, M - Middle, R-Right)
20. 3 Venn diagram
Q1) Below find the records of 12 randomly selected used pickup trucks (none used commercially) and 11 randomly selected used passenger cars, the time (in years) that they were kept by the original owner before being sold: Used pickup trucks | 3 | 2.5 2.9 5 4.2 3.1 3.3 4 5.3 3.8 4.5 Used passenger cars | 2.2 3 2.8 4.3 4 3.3 2.9 2.1 2 3.1 3 It is known that the standard deviation of used pickup trucks is 2 years and of used passenger cars is 1 year. (a) Investigate, at the 5% significant level, whether the mean time (in years) that used pickup trucks were kept by the original owner before sold is larger than used passenger cars. (b) What assumption is needed to perform the test in (a). (c) Construct the 96% confidence interval for the mean difference of time (in years) were kept by the original owner before sold between used passenger cars and used pickup trucks. Use this confidence interval to tell whether there is difference in the mean time (in years) between these 2 tynes of…
In a survey of 233 people about the operating systems of various devices that they use (cell phone, tablet, laptop, etc.), the following results were obtained: 146 people use an Android device 150 people use an Apple device 79 people use Android and Apple devices 77 people use Android and Windows devices 67 people use an Apple device, but no Windows device 32 people use Android, Apple, and Windows devices 8 people use devices that are not Android, not Apple, and not Windows How many people use a Windows device?
A certain affects virus 0.8% of the population. A test used to detect the virus in a person is positive 88% of the time if the person has the virus (true positive) and 13% of the time if the person does not have the virus (false postive). Fill out the remainder of the following table and use it to answer the two questions below. (enter answer with no commas, i.e. as 1000 not 1,000.) Infected Not Infected Total Positive Test [a] [b] [c] Negative Test [d] [e] [f] Total 800 99,200 100,000 i) Find the probability that a person has the virus given that they have tested positive. (Round your answer to the nearest tenth of a percent and do not include a percent sign.)[g]_______ % ii) Find the probability that a person does not have the virus given that they test negative. (Round your answer to the nearest tenth of a percent and do not include a percent sign.)[h]________ %
Cont. Comes up 3 followed by a head and then a tail on the coin, construct a trace diagram to show the 18 elements of the sample space S.
When we examine a proposed experimental study for possible confounds, which of these should look for? Confounds due to the age of the participants the order in which the conditions of the study were tested the size of the sample whether the study has ever been carried out before and published (a and b), but not (c and d)
Suppose that you have 10 cards. 3 are blue and 7 are orange. The 3 blue cards are numbered 1,2, and 3. The 7 orange cards are numbered 1, 2, 3, 4, 5, 6, and 7. The cards are well shuffled. You randomly draw one card. • B = card drawn is blue • O = card drawn is odd-numbered How many elements are there in the sample space? [ Select ] ["7", "10", "2", "3"] P(B) = [ Select ] ["0.7", "0.2", "0.5", "0.3"](Give your answer in decimal form.
Listed below are the numbers of words spoken in a day by each member of eight different randomly selected couples. Complete parts (a) and (b) below. Male 15,120 26,314 1464 7800 19,420 15,288 14,615 25,602 Female 24,185 13,795 18,744 17,195 12,673 17,157 16,456 18,185 a. Use a 0.01significance level to test the claim that among couples, males speak fewer words in a day than females. In this example, μd is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the words spoken by the male minus words spoken by the female. What are the null and alternative hypotheses for the hypothesis test? H0: μd [less than< equals= greater than> not equals≠] [] word(s) H1: μd [less than< equals= not equals≠ greater than] [] word(s) (Type integers or decimals. Do not round.) Identify the test statistic: t=(Round to two decimal places as…

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