Kindly answer the following questions: (use 5% level of significance if needed) Q13. The Agriculture Secretary in a certain country wants to determinewhether the yield of the subtype of the chili variety that farmers produce inthe southern portion of the country is more than the average standard yieldof 1,800 kg per acre. Twenty locations were randomly selected and the chiliyield (in kg per acre) were recorded. Which of the following is(are) TRUE?1. Based on the output below, the normality assumption of the chili yield issatisfied.II. The appropriate test procedure to answer the research objective is Wilcoxonsigned-rank test.OI onlyOll onlyBoth I and II0 0 0 0data: chili.yieldw 0.93205, p-value = 0.1691Neither I nor IIshapiro-wilk normality testQ14. It is of interest to determine whether the average recovery time (indays) of patients who underwent a newly approved bone reconstructionprocedure is faster than 80 days. Suppose that based on the Shapiro-Wilktest, there is sufficient evidence that the recovery time is not normallydistributed. The appropriate procedure to answer the research objective isO Chi-square goodness-of-fit testMann-Whitney test.1-test on one population meaniWilcoxon-signed rank testQ15. The company that produces Gayant bikes decided to replace the gearsused for its ten-speed racing bikes. The winning supplier promises that theirgear diameter has a variance of at most 0.0001 mm². From a sample of 100measurements, the estimated standard deviation is 0.06 mm. Thealternative hypotheses for testing the supplier's promise is.the mean of the gear diameters is less than 0.06 mmO the variance of the gear diameters is less than 0.0036 mm²the mean of the gear diameters is greater than 0.01 mmthe variance of the gear diameters is greater than 0.0001 mm² Q11. Which of the following is TRUE based on the output below?F test to compare two variancesdata: Length by LatheF = 0.064616, num df 49, denom df = 49, p-value < 2.2e-16alternative hypothesis: true ratio of variances is not equal to 195 percent confidence interval:0.03666794 0.11386527sample estimates:ratio of variances0.06461583OThere is sufficient evidence to say that the variances of the lengths of partsproduced by lathe brand A and lathe brand B are differentOThere is no sufficient evidence to say that the variances of the lengths of partsproduced by lathe brand A and lathe brand B are differentOThere is sufficient evidence to say that the mean length of parts produced by lathebrand A and lathe brand B are differentThere is no sufficient evidence to say that the mean length of parts produced bylathe brand A and lathe brand B are differentQ12. Which of the following will lead to the narrowing of the width of aconfidence interval in estimating the population mean?1. decreasing the sample sizeII. Increasing the level of confidenceOI onlyOll onlyO Both I and IIONeither I nor II

As per our guidelines I can solve only first three subparts. Kindly post the remaining subparts…

Answered: Q11. Which of the following is TRUE…

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

Related questions

Question

Kindly answer the following questions: (use 5% level of significance if needed)

Q13. The Agriculture Secretary in a certain country wants to determine
whether the yield of the subtype of the chili variety that farmers produce in
the southern portion of the country is more than the average standard yield
of 1,800 kg per acre. Twenty locations were randomly selected and the chili
yield (in kg per acre) were recorded. Which of the following is(are) TRUE?
1. Based on the output below, the normality assumption of the chili yield is
satisfied.
II. The appropriate test procedure to answer the research objective is Wilcoxon
signed-rank test.
OI only
Oll only
Both I and II
0 0 0 0
data: chili.yield
w 0.93205, p-value = 0.1691
Neither I nor II
shapiro-wilk normality test
Q14. It is of interest to determine whether the average recovery time (in
days) of patients who underwent a newly approved bone reconstruction
procedure is faster than 80 days. Suppose that based on the Shapiro-Wilk
test, there is sufficient evidence that the recovery time is not normally
distributed. The appropriate procedure to answer the research objective is
O Chi-square goodness-of-fit test
Mann-Whitney test.
1-test on one population meani
Wilcoxon-signed rank test
Q15. The company that produces Gayant bikes decided to replace the gears
used for its ten-speed racing bikes. The winning supplier promises that their
gear diameter has a variance of at most 0.0001 mm². From a sample of 100
measurements, the estimated standard deviation is 0.06 mm. The
alternative hypotheses for testing the supplier's promise is.
the mean of the gear diameters is less than 0.06 mm
O the variance of the gear diameters is less than 0.0036 mm²
the mean of the gear diameters is greater than 0.01 mm
the variance of the gear diameters is greater than 0.0001 mm²

Transcribed Image Text:Q11. Which of the following is TRUE based on the output below? F test to compare two variances data: Length by Lathe F = 0.064616, num df 49, denom df = 49, p-value < 2.2e-16 alternative hypothesis: true ratio of variances is not equal to 1 95 percent confidence interval: 0.03666794 0.11386527 sample estimates: ratio of variances 0.06461583 O There is sufficient evidence to say that the variances of the lengths of parts produced by lathe brand A and lathe brand B are different O There is no sufficient evidence to say that the variances of the lengths of parts produced by lathe brand A and lathe brand B are different O There is sufficient evidence to say that the mean length of parts produced by lathe brand A and lathe brand B are different There is no sufficient evidence to say that the mean length of parts produced by lathe brand A and lathe brand B are different Q12. Which of the following will lead to the narrowing of the width of a confidence interval in estimating the population mean? 1. decreasing the sample size II. Increasing the level of confidence OI only Oll only O Both I and II ONeither I nor II

Expert Solution