85. Music and memory Is it a good idea to listen to music whenstudying for a big test? In a study conducted by some statisticsstudents, 62 people were randomly assigned to listen to rapmusic, music by Mozart, or no music while attempting tomemorize objects pictured on a page. They were then askedto list all the objects they could remember. Here are summarystatistics for each group:RapMozart No Music20Count2913Mean10.7210.0012.77SD3.993.194.73a) Does it appear that it is better to study while listening toMozart than to rap music? Test an appropriate hypothesisand state your conclusion.b) Create a 90% confidence interval for the mean differencein memory score between students who study to Mozartand those who listen to no music at all. Interpret yourinterval.

Name: 85. Music and memory Is it a good idea to listen to music whenstudyin
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: 85. Music and memory Is it a good idea to listen to music whenstudying for a big test? In a study conducted by some statisticsstudents, 62 people were randomly assigned to listen to rapmusic, music by Mozart, or no music while attempting tomemorize

a) Given that n1=29, n2=20x1=10.72, x2=10.00s1=3.99, s2=3.19…

Math

Statistics

a) Does it appear that it is better to study while listening to Mozart than to rap music? Test an appropriate hypothesis and state your conclusion. b) Create a 90% confidence interval for the mean difference in memory score between students who study to Mozart and those who listen to no music at all. Interpret your interval.

a) Does it appear that it is better to study while listening to Mozart than to rap music? Test an appropriate hypothesis and state your conclusion. b) Create a 90% confidence interval for the mean difference in memory score between students who study to Mozart and those who listen to no music at all. Interpret your interval.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A Pew Internet Project Data Memo presented data comparing adult gamers with teen gamers with respect to the devices on which they play. The data are from two surveys. The adult survey had 1063 gamers, while the teen survey had 1064 gamers. The memo reports that 54% of adult gamers played on game consoles (Xbox, PlayStation, Wii, etc.), while 89% of teen gamers played on game consoles. Suppose you want to construct a 95% confidence interval for the difference. You want to test were or not the two proportions (adult using consoles vs teens using consoles) are the same. You have to calculate a pooled estimate for the proportion. What would that be? (Please round to three decimal places)
A researcher gathered a sample of participants who volunteered for a studying of phobias. She measured anxiety level of participants as they viewed photos of spiders and again when they viewed puppies. Which statistical test is appropriate for this study and why?
Michelle, a student studying music, randomly sampled fellow music majors and asked whether they listen to music while they study. The resulting confidence interval for the proportion of music students who listen to music while studying is (0.09, 0.26). What is the margin of error?
Person 1 Person 2 Person 3 Person 4 Person 5 Person 6 Person 7 Person 8 Person 9 Height (inches) 75 62 64 63 62 70 69 70 67 Weight (lbs) 325 250 280 220 235 265 200 365 175 (CLO 1) Construct a confidence interval to estimate the mean height and the mean weight.
A Surprising fact indicates that a small proportion of teens use a password on their mobile device. A poll chooses a simple random sample of 120 teens and asks if they use a password on their mobile device. The results showed that 56 of teens in our sample used a password on their mobile device. Find a 90 % confidence interval for the proportion of teens who use a password on their mobile device. Interpret your confidence interval.
Data are used either to test a hypothesis or to construct a confidence interval, but not both. Explain.
Construct a 96% confidence interval if x=75 and n=200. Round your answers to 3 decimal places.
Suppose you compute a 93% confidence interval. What will happen to the confidence interval if you decrease the confidence level to 91%?
A recent survey of 1,000 people found that 90% of Americans support background checks for purchasing guns. Construct a 95 % confidence interval for the population proportion.
In a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under Emily's hand without seeing it and without touching it. Among 337 trials, the touch therapists were correct 163 times. Using Emily's sample results, construct a 95% confidence interval estimate of the proportion of correct responses made by touch therapists. (round to 3 decimal places)
A surprising fact indicates that a small proportion of teens use a password on their mobile device. A poll chooses a simple random sample of 120 teens and asks if they use a password on their mobile device. The results showed that 56 of teens in our sample used a password on their mobile device. Find a 90 % confidence interval for the proportion of teens who use a password on their mobile device. Interpret your confidence interval.