Question

An article contained the following observations on degree of polymerization for paper specimens for which viscosity times concentration fell in a certain middle range:

418 | 420 | 421 | 423 | 425 | 429 | 432 | 435 | 436 |

439 | 445 | 446 | 448 | 452 | 456 | 461 | 464 |

1.Comment on any interesting features. (Select all that apply.)

a.The data appears to be centered near 438.

b.The data appears to be centered near 428.

c.There is little or no skew.

d.The data is strongly skewed.

e.There are no outliers.

f.There is one outlier.

2.Calculate a two-sided 95% confidence interval for true average degree of polymerization. (Round your answers to two decimal places.)

( , )

Answer #1

An article contained the following observations on degree of
polymerization for paper specimens for which viscosity times
concentration fell in a certain middle range:
415
420
421
423
425
428
432
435
437
438
445
446
449
451
457
461
464
(c) Calculate a two-sided 95% confidence interval for true
average degree of polymerization. (Round your answers to two
decimal places.)

An article contained the following observations on degree of
polymerization for paper specimens for which viscosity times
concentration fell in a certain middle range: 418 420 422 423 426
427 431 434 436 438 445 446 449 453 458 462 464 (a) Construct a
boxplot of the data. WebAssign Plot WebAssign Plot WebAssign Plot
WebAssign Plot Correct: Your answer is correct. Comment on any
interesting features. (Select all that apply.) The data appears to
be centered near 428. There is...

An article contained the following observations on degree of
polymerization for paper specimens for which viscosity times
concentration fell in a certain middle range:
418 421 422 422 426 429 430 434 436 439 446 447 449 453 457 463
465
(c) Calculate a two-sided 95% confidence interval for true
average degree of polymerization. (Round your answers to two
decimal places.)
( , )

An article contained the following observations on degree of
polymerization for paper specimens for which viscosity times
concentration fell in a certain middle range: 420 425 427 427 432
433 434 437 439 446 447 448 453 454 465 469 Suppose the sample is
from a normal population.
(a) Calculate a 95% confidence interval for the population mean,
and interpret it.
(b) Calculate a 95% upper confidence bound for the population
mean, and interpret it

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Your firm works in construction and buys ASTM A325M8S bolts in
very large numbers. You are interested in purchasing bolts from
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