6.Screen tension A manufacturer of high-resolution video terminals mustcontrol the tension on the mesh of fine wires that lies behind the surface ofthe viewing screen. Too much tension tears the mesh, and too little allowswrinkles. The tension is measured by an electrical device with outputreadings in millivolts (mV). Here are the tension readings from a randomsample of 20 screens from a single day's production:269.5 297.0 269.6 283.3 304.8 280.4 233.5 257.4 317.5 327.4264.7 307.7 310.0 343.3 328.1 342.6 338.8 340.1 374.6 336.1The sample mean for these data isXThe dotplot shows the distribution of the sample mean tension readings for300 random samples of size 20 taken with replacement from the originalsample.280306.32 mV.Ilmu..T285 290 295 300 305 310 315 320 325Simulated sample mean tension readingDistribution of simulated mean# samples300mean306.673SD7.734(a) Use the results of the simulation to approximate the margin of error for theestimate of the mean tension reading for screens produced this day.(b) Interpret the margin of error.

From the given information, samples mean SD 300 306.673 7.734 Let α=0.05. α2=0.052=0.025…

Answered: Screen tension A manufacturer of…

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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Q.No.1. Take 40 numbers randomly and find its P75, Q3 Median, Q,„Dg.P 50° Make a grouped frequency distribution of that data and again calculate its a. i. ii. b. P75, Q3 Median, Q,„D,P, Compare your results of part(a) and part (b), also comment on your results. i. i. 50 С. Answer: -
Illustration 10.21. The values of the arithmetic mean and the standard deviation of the following frequency distribution of a continuous variable derived from short-cut method are 135.3 lbs. and 9.6 lb. respectively. -4 -3 -2 -1 1 2 Total Freq. 5 8. 18 22 13 80 Determine the actual class interval. 34
Q3: Identify the type of data provided in each column printed in US geological survey providing real time, worldwide earth quake list
please answer quickly
The number of bpms (bits per microseconds) passed through a gate is given below. Find the median bpms. 70 60 50 61 78 32 73 28 39 19 63
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TEACHER Weatherwse is a magazine pubilished by the American Meteorological Soclety. One issue grves a rating system used to classity Nor'easter storms that frequently hit New England and can cause much damage near the ocean. A severe storm has an average peak wave height of 16.4 feet for waves hitting the shore. Suppose that a Nor'easter is in progress at the severe storm class rating. Peak wave heights are usually measured from land (using binoculars) off fixed cement piers. Suppose that a reading of 40 waves showed an average wave height of x 16.7 feet. Previous studies of severe storms indicate that 35 feet. Does this information suggest that the storm is (perhaps temporarily) increasing above the severe rating? Use 0.01. (a) What is the level of significance? State the nul and alternate hypotheses Hel 16.4 Ht >16.4 t Mo 16.4 t, H< 164R Ho: - 16.4 t, H 16.4 R Hot 16.4 n; H- 16.4 t H < 16.4 n; H- 164n (b) What sampling distribution will you use? Explain the rationale for your choice…
Consider the following table: SS DF MS ? Among Treatments 4468.45 Error Total Step 2 of 8: Calculate the degrees of freedom among treatments. 10 706.87 15 LL F
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An article reported the following frequencies with which ethnic characters appeared in recorded commercials that aired on Philadelphia television stations. Ethnicity: Frequency: African American USE SALT Calculate th x² = | OHP₁ P₂P, P = 0.250 H₁: at least one p, = 0.25 Asian In a recent census, the proportions for these four ethnic groups are 0.177, 0.042, 0.734, and 0.047, respectively. Does the data suggest that the proportions in commercials are different from the census proportions? Carry out a test of appropriate hypotheses using a significance level of 0.01. (Let P P₂P and p be the population proportions of the four ethnic groups (African American, Asian, Caucasian, and Hispanic respectively) appearing in commercials on Philadelphia television stations.) State the appropriate hypotheses. O H₂: P₁ = 0.047, P₂ -0.011, p = 0.330, p = 0.005 H: at least one p, P Caucasian Hispanic 330 OH: P₁ = 0.120, P, = 0.028, p = 0.840, p = 0.013 H: at least one p, * P OH₂: P₁ = 0.177, P₂ = 0.042,…
Find out the range for the following data. 10244 12848 15224 16542 10124 13686 14555 16543 10123 13554 14228 11221 a. 6420 O b. 2640 Oc 6240 O d. 4620
The table below has a total of 60 values. Find the 4th decile for the following Grouped Frequency Data Table (GFDT). Lower Class Upper Class Frequency Limit Limit 40 44 6. 45 49 6. 50 54 5 55 59 60 64 4 65 69 4 70 74 75 79 80 84 4 The 4th decile = CO CO

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