Answered: find the percentile rank of the…

find the percentile rank of the pathologic tumor size 2cm tumor size f rel.f cf 4 3 0.25 12 3 2 0.17 9 2 2 0.17 7 1 5 0.42 5 n=15

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Find the area under the standard normal curve which lies between z = 0.93 and z = 2.21.
Construct the indicated confidence intervals for the population variance σ^2 and the population standard deviation σ. Assume the sample is from a normally distributed population. c=0.95, s^2=15.45 , n=25 A. Confidence interval for σ2: (14.04,26.78); Confidence interval for σ: ( 3.75, 5.17) B. Confidence interval for σ2: (9.85, 25.38); Confidence interval for σ: ( 3.14, 5.04) C. Confidence interval for σ2: ( 9.12, 28.26); Confidence interval for σ: ( 3.02, 5.32) D. Confidence interval for σ2: ( 9.42, 29.90); Confidence interval for σ: ( 3.07, 5.47)
Help please week 10
Find the area under the standard normal curve to the right of z = 0.8. Round your answer to four decimal places, if necessary. Answer If you would like to look up the value in a table, select the table you want to view, then either click the cell at the intersection of the row to find the appropriate cell in the table and select it using the Space key. Normal Table -o to -z Normal Table -o to z © 2021 Hawkes Learning 林 here to search prt sc
Find a z-score such that 56% of the area under the standard normal curve is below that score. Z= Click the icon to view the area under the standard normal curve table. (Round to the nearest hundredth as needed.)
Determine the area under the normal curve between z = -0.153 and 0
Please do not give solution in image format thanku A manufacturer of automobile transmissions uses two different processes. Management ordered a study of the production costs to see if there is a difference between the two processes. A summary of the findings is shown next. Process 1 Process 2 Total Process totals ($100s) 137 108 245 Sample size 10 10 20 Sum of squares 1,893 1,188 3,081 a. What is the critical value of F at the 5% level of significance? b. State the null hypothesis and the alternate hypothesis. c. State the decision rule. d. Compute
Department secretary has found the average number of complaints per week over the past few years is 1.4. However after a change in major requirements, the complaints over last 8 weeks averaged M = 3.0, with SS = 16. Has there been a significant increase in the number of student complaints over the past 8 weeks? What kind of t-test?______________ Test using alpha = .05 and write an APA style conclusion. 1) H0: H1: 2) Critical value: one or two-tailed? df= __ alpha = .05 __________ 3) Calculations: SS given so start w/ variance s2 SM t = M –µ SM 4) Is there a difference? Reject the Null? Write a sentence with APA stats.
find the area under the standard normal curve to the left of z=1.5
A regression analysis done with Excel for the relationship between The placement test scores and the final grades for 20 students who took the regular course were recorded and yielded the following output. SUMMARY OUTPUT Regression Storistics Multiple R 0.45351 R Square 0.20567 Adjusted F 0.16155 Standard E 16.1747 Observatic 20 ANOVA MS F SS 4.66073 1219.35 gnificance F 0.04461 1 1219.35 Regressior Residual Total 18 4709.2 261.622 19 5928.55 Chart Area Coefficientsandard Errt Stat P-value Lower 95% Upper 95%ower 95.0%pper 95.0% 0.0192 5.95316 59.0587 5.95316 59.0587 Intercept 32.5059 12.6386 2.57195 X Variable 0.47106 0.2182 2.15887 0.04461 0.01264 0.92948 0.01264 0.92948 According to the model, If the placement test score is 79, the course grade will be A. 32.51 B. 69.64 C. 32.95 D. 91
Find the z-score such that the area under the standard normal curve to the left is 0.57.
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