Question: Question content area top Part 1 A sample? mean, sample? size, and sample standard deviation are provided below. Use the? one-mean t-test to perform the

Question content area top

Part 1

A sample? mean, sample? size, and sample standard deviation are provided below. Use the? one-mean t-test to perform the required hypothesis test at the

1010?%

significance level.

x overbarxequals=2222?,

ssequals=66?,

nnequals=1515?,

Upper H 0H0?:

mu equals 21?=21?,

Upper H Subscript aHa?:

mu not equals 21??21

Click here to view a partial table of values of

t Subscript alphat?.

Question content area bottom

Part 1

The test statistic is

ttequals=enter your response here.

?(Round to two decimal places as? needed.)

Question content area top Part 1 A sample? mean,

df to. 10 to.05 to.025 to.01 to.005 df 10 1.372 1.812 2.228 2.764 3.169 10 11 1.363 1.796 2.201 2.718 3.106 11 12 1.356 1.782 2. 179 2.681 3.055 12 13 1.350 1.771 2. 160 2.650 3.012 13 14 1.345 1.761 2.145 2.624 2.977 14 15 1.341 1.753 2.131 2.602 2.947 15 16 1.337 1.746 2.120 2.583 2.921 16 17 1.333 1.740 2.110 2.567 2.898 17 18 1.330 1.734 2.101 2.552 2.878 18 19 1.328 1.729 2.093 2.539 2.861 19 20 1.325 1.725 2.086 2.528 2.845 20 21 1.323 1.721 2.080 2.518 2.831 21 22 1.321 1.717 2.074 2.508 2.819 22 23 1.319 1.714 2.069 2.500 2.807 23 24 1.318 1.711 2.064 2.492 2.797 24 25 1.316 1.708 2.060 2.485 2.787 25 26 1.315 1.706 2.056 2.479 2.779 26 27 1.314 1.703 2.052 2.473 2.771 27 28 1.313 1.701 2.048 2.467 2.763 28 29 1.311 1.699 2.045 2.462 2.756 29 30 1.310 1.697 2.042 2.457 2.750 30 31 1.309 1.696 2.040 2.453 2.744 31 32 1.309 1.694 2.037 2.449 2.738 32 33 1.308 1.692 2.035 2.445 2.733 33 34 1.307 1.691 2.032 2.441 2.728 34 35 1.306 1.690 2.030 2.438 2.724 35 36 1.306 1.688 2.028 2.434 2.719 36 37 1.305 1.687 2.026 2.431 2.715: 38 1.304 1.686 2.024 2.429 2.712 38 39 1.304 1.685 2.023 2.426 2.708 39

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