Calculate the t-test statistic using the standard error from part a. t=At α=0.02 , Use the distribution table to find the critical values for the rejection regiontc=±____ Tests the claim that 41 # p2. Assume the samples are normally distributed, random and independent.of = o}81 = 0.75 ; s2 = 0.74Z1 = 46.83 ; z2 = 47.02n1 = 12 ; n2 = 12Standard ErrorDegrees ofFreedomt-Test Statistic(n1-1) s+ (n2- 1) -(Z1 – 2) – (41 – 42)11t =n2SE1- =ni + n2 – 2n1 + n2 – 2

The null hypothesis is given by, H0 : µ1 = µ2 H1 : µ1 ≠µ2 n1 = 12 , n2 = 12 s1 = 0.75, s2 = 0.74 x1…

Answered: TO Tests the claim that 41 # µ2. Assume…

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

The fire department of a city wants to test the null hypothesis that σ =10 minutes for the time it takes a fire truck to reach a fire site against thealternative hypothesis σ 6= 10 minutes. What can it conclude at the 0.05 levelof significance if a random sample of size n = 48 yields s = 9.5minutes?
A poll reported that 63% of adults were satisfied with the job the major airlines were doing. Suppose 20 adults are selected at random and the number who are satisfied is recorded. Would it be unusual to find more than 17 who are satisfied with the job the major airlines were doing? The result is/is not unusual, because P(x>17) = _____under the assumption that the proportion of adults that are satisfied with the airlines is 63%. Thus, in 100 random samples of size 20, this result is expected in about ______ of the random samples. (Type integers or decimals. Round to four decimal places as needed.)
The fire department of a city wants to test the null hypothesis that σ = 10 minutes for the time it takes a fire truck to reach a fire site against the alternative hypothesis σ 6= 10 minutes. What can it conclude at the 0.05 level of significance if a random sample of size n = 30 yields s = 9.5 minutes? Assume normality.
A simple random sample of 50 adult females is obtained, and the white blood cell count (in cells per microliter) is measured for each of them, with these results: n = 50, sample mean = 6.889 (in million cells per microliter), s = 2.021 (in million cells per microliter). Use a 0.01 significance level to test the claim that the sample is from a population with a mean less than 8.3 (in million cells per microliter), which is often used as the upper limit of the range of normal values. What is the conclusion of the study? * 2 points A. The white blood cell count of the 50 adult females is equal to the mean of the white blood cell count of the population. B. The white blood cell count of the 50 adult females is not equal to the mean of the white blood cell count of the population. C. The white blood cell count of the 50 adult females is less than to the mean of the white blood cell count of the population. D.…
A simple random sample of 50 adult females is obtained, and the white blood cell count (in cells per microliter) is measured for each of them, with these results: n = 50, sample mean = 6.889 (in million cells per microliter), s = 2.021 (in million cells per microliter). Use a 0.01 significance level to test the claim that the sample is from a population with a mean less than 8.3 (in million cells per microliter), which is often used as the upper limit of the range of normal values. What is the value of the critical t table/tabular value? *
A simple random sample of 50 adult females is obtained, and the white blood cell count (in cells per microliter) is measured for each of them, with these results: n = 50, sample mean = 6.889 (in million cells per microliter), s = 2.021 (in million cells per microliter). Use a 0.01 significance level to test the claim that the sample is from a population with a mean less than 8.3 (in million cells per microliter), which is often used as the upper limit of the range of normal values. What is the value of the test statistic/computed t? *
indicate whether the analysis involves a statistical test. If it does involve a statistical test, state the population parameter(s) of interest and the null and alternative hypotheses. a)Giving a Coke/Pepsi taste test to random people in New York City to determine if there is evidence for the claim that Pepsi is preferred. b)Testing 100 right-handed participants on the reaction time of their left and right hands to determine if there is evidence for the claim that the right hand reacts faster than the left. c)Polling 1000 people in a large community to determine if there is evidence for the claim that the percentage of people in the community living in a mobile home is greater then 10%.
When one is testing H0: µ= µ0 on the basis of data from a sample of size n from a normally distributed population with a known variance of σ2 , the test statistic is ____________________________________________. When one is testing H0: µ= µ0 on the basis of data from a sample of size n from a normally distributed population with a unknown variance, the test statistic is ___________________. The null hypothesis contains a statement of ______________________. The statement μ≥0 0 is an inappropriate statement for the ___________ hypothesis. The rejection region consists of those values of the ___________ that will cause rejection of the null hypothesis. The null hypothesis and the alternative hypothesis are ___________ of each other. Given H0: µ= µ0, then Ha: ___________. Given H0: µ ≤ µ0, then Ha: ___________. Given H0: µ ≥ µ0, then Ha: ___________. A statement of what you wish to conclude goes in the ___________. A market analyst believes that more than 30% of the adults in a…
Longevity, in days, was measured in two unrelated samples of D.melanogaster flies. Researchers hypothesized that the energeticdemands of sexual activity would cause those flies to havereduced longevity. Perform all 7 steps of the appropriate hypothesis test todetermine if there is convincing evidence at α = 0.05 that sexuallyactive D. melanogaster tend to have shorter lifespans than theirsexually inactive counterparts. Sample mean Sample SD n active 38.9 12.0 25 Inactive 62.5 14.1 24
At a toll-booth on-ramp there is a stochastic arrival distribution. Vehicles are counted in 20-second intervals, and vehicle counts are taken in 120 of these time intervals. Based on data collected, no vehicles arrived in 18 of the 120 count intervals. What is the number of the 120 intervals that 3 cars arrived?
Suppose that X¯, Y¯ be the means of 2 samples of sizes n from a normal population with variance σ^2. Determine n so that the probability will be about 0.95 that the two sample means will differ by less than σ.
A certain factory produces Xn specialized parts on day n, where Xn are independent and identically distributed random variables with mean 6 and variance 9. Let Sn be the total number of specialized parts produced from day 1 to day n. Using central limit theorem, determine the total number of parts, a, the said factory can guarantee to produce by day 50 with at least 99.9% certainty, i.e. determine the maximum value of a so that P(S50≥a)≥0.999. Note: This maximum value must be a whole number.

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

TO Tests the claim that 41 # µ2. Assume the samples are normally distributed, random and independent. of = o} %3D S1 = 0.75 ; s2 = 0.74 %3D 46.83; 2 = 47.02 %3D n1 = 12 ; n2 = 12