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Data on oxide thickness of semiconductors are as follows: Consider this data as

ID: 3057880 • Letter: D

Question

Data on oxide thickness of semiconductors are as follows:



Consider this data as a sample of the population.

(a) Calculate a point estimate of the mean oxide thickness for all wafers in the population. (Round your answer to 3 decimal places.)

(b) Calculate a point estimate of the standard deviation of oxide thickness for all wafers in the population. (Round your answer to 2 decimal places.)

(c) Calculate the standard error of the point estimate from part (a). (Round your answer to 2 decimal places.)

(d) Calculate a point estimate of the median oxide thickness for all wafers in the population. (Express your answer to 1 decimal places.)

(e) Calculate a point estimate of the proportion of wafers in the population that have oxide thickness greater than 430 angstrom. (Round your answer to 4 decimal places.)

424 432 418 421 422 438 420 409 432 435 424 426 412 435 435 431 412 426 411 438 422 430 411 417

Explanation / Answer

Data on oxide thickness of semiconductors are as follows:



Consider this data as a sample of the population.

(a) Calculate a point estimate of the mean oxide thickness for all wafers in the population. (Round your answer to 3 decimal places.)

(b) Calculate a point estimate of the standard deviation of oxide thickness for all wafers in the population. (Round your answer to 2 decimal places.)

(c) Calculate the standard error of the point estimate from part (a). (Round your answer to 2 decimal places.)

(d) Calculate a point estimate of the median oxide thickness for all wafers in the population. (Express your answer to 1 decimal places.)

(e) Calculate a point estimate of the proportion of wafers in the population that have oxide thickness greater than 430 angstrom. (Round your answer to 4 decimal places.)

424 432 418 421 422 438 420 409 432 435 424 426 412 435 435 431 412 426 411 438 422 430 411 417