An Engineer has a duty of conductingcompressive strength test for 50 concretecubes. 40 cubes passed the testsuccessfully and 10 cubes failed in the test.If 5 cubes are selected at random by theengineer to be inspected, determine theprobability that the selected concrete cubesexactly include 4 cubes passed and 1 cube:failed? Choose the correct answer0.254 O0.334 O0.678 O0.112 O0.431 O

It is given that Number of passed cubes = 40 Number of failed cubes = 10 Total cubes = 50 Sample…

Answered: An Engineer has a duty of conducting…

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter10: Sequences, Series, And Probability

Section10.8: Probability

Problem 32E

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Name the four characteristics of a good definition.
An alloy manufacturer is investigating if they can improve the strength of one of their alloysby producing it at a lower temperature. To investigate that, they produce the alloy at twodifferent temperatures (high and low) and then measure the breaking strength of randomsamples of specimens from each. The following table represents the strength of the randomsamples at the higher and lower temperature, in units of 0.001-inch deflection. Temp. Strength (0.001 inch)High 87 64 66 85 76 49 97 73 75 77 69 68 89 27 58 84Low 88 82 81 85 79 80 88 78 77 85 79 76 Do the results support the hypothesis that lowering the production temperature can improve thestrength of the alloy, with 95% confidence? (Hint: Don’t forget investigating variances. Use 98% confidence for that.)
Hemispherical Conductor produces the 80J84 microprocessor, which the Sayle Company plans to use in a heart–lung machine. Because of the sensitivity of the application,Sayle has established a value of AQL of .001 and LTPD of .005. Sayle purchases themicroprocessors in lots of 500 and tests 100 from each lot. The testing requires destruction of the microprocessor. The lot is rejected if any defectives are found.a. What are the values of p0, p1, n, and c used?
If p= v2, p*= 1.414, then the relative error is equal 2.136x10 4 Select one: O True O False
A company that manufactures golf balls produces a new type of ball that is supposed to travel significantly farther than the company’s previous golf ball. To determine this, 40 new-style golf balls and 40 original-style golf balls are randomly selected from the company’s production line on a specific day. The balls are then placed in a bag and shaken. A golf pro then selects a ball and hits it using a driver. The distance the ball travels is then measured. The bag is shaken again, and the golf pro selects another ball and hits it with the same driver. He continues this procedure until all 80 of the golf balls are hit. Which of the following is a benefit of having replication in the experiment? A)Repeating the experiment will allow the company to compare the distances traveled by the new type of golf ball from both experiments. B)Having a large number of each type of golf ball will allow for a good comparison of the differences in distances traveled for the two types of balls.…
A mail-order catalog claims customers will receive their product within 4 days of ordering. A competitor believes that this claim is an underestimate. The competitor test the following hypothesis H0: mu = 4 versus Ha: mu > 4. Determine the type one error. Group of answer choices A. Type I error occurs if the competitor would conclude that mu > 4 when, in fact, mu > 4. B. Type I error occurs if the competitor would conclude that mu > 4 when, in fact, mu = 4. C. Type I error occurs if the competitor would not conclude that mu > 4 when, in fact, mu > 4. D. Type I error occurs if the competitor would not conclude mu > 4 when, in fact, mu = 4.
How wellmaterials conduct heat matters when designing houses, forexample. Conductivity is measured in terms of watts of heatpower transmitted per square meter of surface per degree Celsius of temperature difference on the two sides of the material.The National Institute of Standards and Technology (NIST)provides data on properties of materials. Here are 9 NISTmeasurements of the heat conductivity of a particular type offibrous-glass board: 0.0339 0.0337 0.0334 0.0334 0.03330.0333 0.0333 0.0332 0.0330 (a) We can consider this an SRS of all specimens of fibrousglass board of this type. Make a stemplot. Is there any sign ofmajor deviation from Normality? (b) Give a 95% confidence interval for the mean conductivity. (c) Is there significant evidence at the 5% level that themean conductivity of this type of fibrous-glass board is not0.0330?
O Rttps://app.edulastic.com/student/assessment/60723feab9c5e60009bbf289/class/5f7e323fba21a80007285a92/... Question 4/7 > NEXT A BOOKMARK in the rigure AB Is parallei to CD. Find the values of Z1, 2 and 23. DRAG & DROP THE ANSWER 90° E 100 100° 70° 60° A 50° 80 C 3 F Type here to search ASUS 近

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Detergent manufacturers frequently make claims about effectiveness of their product. A consumer-protection service decided to test the five best selling brands of detergent in three water temperatures on their claim of producing the “whitest whites”. One hundred and fifty white sheets were equally soiled. Thirty sheets were washed in each of the five brands; 10 in cold water, 10 in warm water and 10 in hot water. After washing, the “whiteness” was measured with laser equipment. Perform the appropriate post-hoc analyses and clearly state your conclusions about the performance of the different brands in lukewarm water. Temperature Dtrgent1 Dtrgent2 Dtrgent3 Dtrgent4 Dtrgent5 Cold 66 83 70 44 84 Cold 87 62 75 59 67 Cold 55 61 62 47 99 Cold 41 85 68 60 85 Cold 68 75 72 79 73 Cold 49 78 92 62 74 Cold 52 68 70 73 76 Cold 57 66 71 64 82 Cold 66 93 74 69 79 Cold 62 81 80 81 79 Lukewarm 78 63 71 70 87 Lukewarm 65 47 88 80 100 Lukewarm 68 88 90 78 83 Lukewarm…
A political candidate with 84115 registered voters in their electorate, wants to survey these voters to discover their chance of winning a seat in the next up-coming election. Of the 7667 registered voters who responded to the survey, it was found that 41% stated that they would vote for this candidate. What is the size of the population?Please do NOT include units in your answer.
4 An engineer wants to compane the tensle sarengths of stel bars that are produced using a conventional method and an experimental method. (The tensle strength ofa metal is a measure of its ability to resist tearing when pulled lengtheise. To do sa, the engineer randomly selects steel bars that are manufactured usng each method and records the following tensle strengths (n newtons per square milimeter. Ata -0.10, can the engineer dam that the esperimental method produces steel with greater mean tensle strength? Should the engineer recommend using the experimental method? Assume the population variances are net equal( Experimental Method: 395 389 421 394 407 411 389 412 422 416 412 408 400 386 411 405 389 Conventional Method: 362 352 380 382 413 384 400 378 419 379 384 388 372 363

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