A scientific study was conducted to determine the hours of sleep that college students get per night. Thestudy surveyed 26 college students and obtained the following data:6.9, 6.2, 7.4, 5.3, 6, 6.5, 6.4, 6.2, 5.4, 7.5, 8.3, 5.8, 8.7, 7.2, 6.2, 7.2, 7.5, 7.5, 6.6, 6.8, 6.8, 6.2, 6.4,6.3, 5.8, 6.5Assuming the population standard deviation is o =average hours of sleep per night that college students get.0.79, construct a 98% confidence interval for theza27Margin of Error: E =We are 98% confident that college students get an average of betweenhours andhours of sleep per night.||||

Answered: Image /qna-images/answer/5f28d8e7-593c-46d1-9da5-65f508754627.jpg

Answered: average hours of sleep per night that…

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

qu(16) The flavour of juicy fruit is said to last on average for 2 mins .A consumer product researcher wanted to find out if this is true and hypothesize that juicy fruit flaviour would last longer than average due to changing sticks to pellet pieces. The researcher tested 10 pieces and recorded the following data 1.45 , 1.50 , 1.45, 1.75, 2.15, 2.20 , 1.80, 1.95 , 2.05, 1.60 Test the hypotheses at the 5% level of significance. using the following Step 1: set up NULL hypotheses Step 2: set up Alternative hypothese. Step 3: choose the level signifcance and obtain Zcrt Step 4 : Calculate the zobt (using the data and z score) (sum of(x))**2 = sum(x**2) = mean = Step 5: use Zobt and Zcrt and make a desicion
Shelia's doctor is concerned that she may suffer from gestational diabetes (high blood glucose levels during pregnancy). There is variation both in the actual glucose level and in the blood test that measures the level. A patient is classified as having gestational diabetes if the glucose level is above 140 milligrams per deciliter (mg/dl) one hour after a sugary drink. Shelia's measured glucose level one hour after the sugary drink varies according to the Normal distribution with µ = 124 mg/dl and σ = 13 mg/dl. If a single glucose measurement is made, what is the probability that Shelia is diagnosed as having gestational diabetes?
Hallux abducto valgus (call it HAV) is a deformation of the big toe that often requires surgery. Doctors used X-rays to measure the angle (in degrees) of deformity in 38 consecutive patients under the age of 21 who came to a medical center for surgery to correct HAV. The angle is a measure of the seriousness of the deformity. Here are the data. 282014 311930 271429 351919 362451 271525 273128 172726 302130 282239 292030 131920 1825 It is reasonable to regard these patients as a random sample of young patients who require HAV surgery. Carry out the Solve and Conclude steps of a 95% confidence interval for the mean HAV angle in the population of all such patients. (Round your answer for x to two decimal places and your answer for s to three decimal places. Round your confidence interval bounds to two decimal places.)
Part e & d please
You wonder whether talking to plants keeps them from dying. You conduct a study in which you talk to one group of five plants and do not talk to a second group of five plants. After two weeks, you record whether each plant has lived or died. This assessment of plant health is a(n) _____ dependent variable, which means that the data can be analyzed using a(n) _____ test. a. nominal; parametric b. interval; parametric c. interval; nonparametric d. nominal; nonparametric
A regression was run to determine if there is a relationship between hours of TV watched per day (xx) and number of situps a person can do (yy).The results of the regression were:y=ax+b a=-0.853 b=34.041 r2=0.389376 r=-0.624 Use this to predict the number of situps a person who watches 7 hour(s) of TV can do, and please round your answer to a whole number.
A regression was run to determine if there is a relationship between hours of TV watched per day (x) and number of situps a person can do (y). The results of the regression were: y=ax+b a=-1.102 b=38.325 r2=0.515524 r=-0.718 Use this to predict the number of situps a person who watches 14 hour(s) of TV can do, and please round your answer to a whole number.
I’m taking a statistics and probability class. Please get this correct because I want to learn. I have gotten wrong answers on here before
A regression was run to determine if there is a relationship between hours of study per week (�) and the test scores (�).The results of the regression were:y=ax+b a=6.254 b=33.41 r2=0.976144 r=0.988 Use this to predict the final exam score of a student who studies 3 hours per week, and please round your answer to a whole number.
Aparticularly statistically curious clickbait website writer noticed that all the cool creative people he knows are also very anxious or neurotic. To test his hunch, he find 5 volunteer friendsand gives thema surveyon neuroticism (1-5 point scale) and a puzzle he found on the internet that supposedly is solved faster by more creative peopleand measures how long it takes each person to solve in seconds. The data areXneuroticism: 3.6, 1.5, 2.85, 2, 4.9Xcreativity: 32, 62, 123, 15, 4 A. Identify the appropriate statistical measure to use. B. Conduct the test. Make a decision about the null hypothesis, interpret your results and calculate effect size if applicable. At ?=.05,is the writer right about his hunch?
Please help it’s not graded
Recap When Not In Use Use In Ventilated Area • Conforms To ASTM D-4236 MARKER Chisel Point 20. An example of the vertical-horizontal illusion is shown in the figure. Although the two lines are exactly the same length, the vertical line appears to be much longer. To examine the strength of this illusion, a researcher prepared an example in which both lines were exactly 10 inches long. The example was shown to individual participants who were told that the horizontal line was 10 inches long and then were asked to estimate the length of the vertical line. For a sample of n = estimate was M CS 25 participants, the average 12.2 inches with a standard deviation of s = 1.00. K. ed or nt ed te An example of the vertical- horizontal illusion a. Use a one-tailed hypothesis test with a = .01 to demonstrate that the individuals in the sample significantly overestimate the true length of the line. (Note: Accurate estimation would produce a le, 10 inches.) mean of u b. Calculate the estimated d and…

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS

average hours of sleep per night that college students get. 2 %3D Margin of Error: E = We are 98% confident that college students get an average of between hours and hours of sleep per night.