Answers
difference hand Right hand left 40 131 -36 1 18 - C IS4 I7O 176 187 - 27 93 I66 G1 24.125 168.8 mean= 1432 sd 22.11 Ho d o H do To test Test statisticr UNIPS - 19.8 432/ t -3.873 The critic vaues are, t 3. 747 At 002, df n-1-S-134from t-table) t1 to Reject Ho There is enough evidence to oarrnt rejection elaim that there is difference betuieen of the reaction timme the the f Fight and left hands
from aiven data ey n: 8 Sd 37.393 confidence interval is, 95 The * Sd 62 5 +2.365 t 2.
365 o.OS 343.ך X df n- 8 - -I625 ± 3 1 .2 6 6 3 confidence intervad is-32.89, 29.4 The 32 89 ud 29.64 the confidence intervs include 2ero, there Because not sufficient evidence to support farmer Joes claim diff friday 13th friday 6th S 14 -7 1 5 2 -2 2 - 9 4 12 -4 2 8 mean 3. 344 3.29 sd 3.69
H, do To +est Ho ud: o VS statistic Test aN/PS 4 it 3.347NG t - 2. 928 critical Values at df n- 6 ~- S Critical v elues re Ct) 2. 141> triticalL Here Reject Ho There is sufficient evidence toaarrcunt Tejection no effect Hospital of the clalm thert of admission affected not are Right left arm Arm difference 143 8 3 - 40 134 82 -48 13 3 ISS -22 135 134 139.2 mean 26.3 2-154 7-694 PS 8.81
Ha ud t o To test Ho V S Test 8tatistic, t. Sd N 26 8 t - 18.8CS - 3 117 t P -value S-14 O o33 C df n- (At 0.0S tess than sìgnificance level.
.
Since P-value is the There is sufficient Reject the null hypothesi s evidence o Support Ihe claim tnat difference in meusuremen ts betoeen the mean tuo O
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