Let us first do Q-test for data set 1
arrange the data into ascending order
30,30.1
there are repeating values so not writing it all values
there has to be questionable value for which we have to conduct the test whether it is outlier or not
Let us say we will conduct the test for value 30
Formula for Q test is given as
Where
x1 is smallest (Suspect value)
x2 is second smallest value
xn is largest value
Here Suspect value Xq=30
Q Exp =(30.1-30)/30.10-30)=0.1/0.1=1
Q critical value at 95% Confidence interval is 0.73
Qcritical<Qcalculated So the point 30 is an outlier
b)
Let us first do Q-test for data set 2
arrange the data into ascending order
25.9,26,26.1
there are repeating values so not writing it all values
there has to be questionable value for which we have to conduct the test whether it is outlier or not
Let us say we will conduct the test for value 25.9
Formula for Q test is given as
Where
x1 is smallest (Suspect value)
x2 is second smallest value
xn is largest value
Here Suspect value Xq=25.9
Q Exp =(26.0-25.9)/26.10-25.9)=0.1/0.2=0.5
Q critical value at 95% Confidence interval is 0.73
Qcritical>Qcalculated So the point 25.9 is not an outlier
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Q test for outliers and calculation of mean for the Spectronic 20 data Table 1. %Transmittance...
Please show all calculation for the Data Rejection Tests
portion. Thank you!
GRAVIMETRIC DETERMINATION OF WATER IN A HYDRATE Identity ofhydrate Casa : 2tO Actual % Hao Results: Trial No. % H2O by drying in oven % H2O by drying with burner 20.qs 20.8 20,91 20.11 (q, 77 21.04 (A. 70 20. SS 25.02 4.18 4 20.04 9.S1 2o.0 Preliminary Statistical Analysis: Mean value of% H2O * Standard deviation s from calculator or computer Fc Drying in oven Drying with...
how do you calculate the q test for this question using the
values provided?
D8 112 131 132 ८) b0) 10 (05 106 106 5. Use the Q-test on the outlier in the Part B equilibrium constant results. Can that trial's result be thrown out of the data set at 90% confidence? Show this calculation even if the result is retained. If you decide to throw out a specific trial result(s) before averaging, you must state a valid reason or...
To compare the mean lengths of time required for the bodily absorption of two drugs A and B, 20 people were randomly selected and assigned to receive one of the drugs. The length of time (in minutes) for the drug to reach a specified level in the blood was recorded, and the data summary is given in the table. Drug A Drug Do the data provide sufficient evidence to indicate a difference in mean times to absorption for the two...
(a) Test the hypothesis that each sample comes from a population with the same mean at the a = 0.05 level of significance. That is, test Ho: My = H2 = 43. P-value = (Round to three decimal places as needed.) Choose the correct conclusion below. Do not reject the null hypothesis. Reject the null hypothesis. 0 - (b) If you rejected the null hypothesis in part (a), use Tukey's test to determine which pairwise means differ using a familywise...
follow the 10-step hypothesis testing procedure, in the step of"calculation of test statistie, use MATLAB to obtain the ANOVA table and find the results accordingly If the post analysis is needed, use MATLAB function ‘muitcompare". Attach all MATLAB results/figures and draw your conclusion accordingly. · Ilich-Ernst et al. investigated dietary intake of calcium among a cross section of 105 healthy women ages 20-88. The researche four age groupings as follows rs rormed Group A, 20.0-45.9 years; Group B, 46.0-55.9 years;...
An IQ test is designed so that the mean is 100 and the standard deviation is 17 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 90% confidence that the sample mean is within 6 IQ points of the true mean. Assume that o = 17 and determine the required sample size using technology. Then determine if this is a reasonable sample...
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My DevoreStat9 9 E 037 6.8/34 points | Previous Answers 3. Hexavalent chromium has been identified as an inhalation carcinogen and an air toxin of concern in a number of different locales. An article gave the accompanying data on both indoor and outdoor concentration (nanograms/m2) for a sample of houses selected from a certain region. House 8 9 5 6 2 3 4 Indoor 0.04 0.05 0.06 0.09 0.09...
The accompanying table contains data on the weight, in grams, of a sample of 50 tea bags produced during an eight-hour shift. Complete parts (a) through (d). a. Is there evidence that the mean amount of tea per bag is different from 5.5 grams? (Use alpha = 0.05.) ALSO STATE THE NULL AND ALTERNATIVE HYPOTHESIS: DETERMINE TEST STATISTIC: The test statistic is (Round to two decimal places as needed.) FIND THE P-VALUE: p-value = (Round to three decimal places as...
1. The Graduate Management Admission Test (GMAT) is a test
required for admission into many masters of business administration
(MBA) programs. Suppose a random sample of 8 students took the
test, and their scores are given below.
699, 560, 414, 570, 521, 663, 727, 413
a. Find a point estimate of the population mean.
b. Write a sentence about how you can verify the data could come
from a population that is normally distributed, using the graph
below.
c. Construct...
13. The data in Table 6-27 are collected in a randomized trial to test the efficacy of a new drug for migraine headaches. The following are characteristics of study participants overall and then organized by the treatment to which they are assigned TABLE 6-27Characteristics in Participants in Study of Treatment for Migraine Headaches All (n- 200) Placebo (n 100) New Drug (n 100) 32.0 (4.9) 31.9 (5.1) 32.8 (4.7 Mean (SD) age, years 51% 48% 54% % Male 78% 80%...