Directions: SHOW YOUR WORK. Include the items discussed in class (such as original claim, the null hypothesis, the alternative hypothesis, draws a graph (shade the graph where the TS can be found), calculate test statistic, critical values, etc. and write a conclusive statement regarding the claim (round to 3 decimals for t and Z, and 3 sig/fig for prob/proportion). Identify whether H 0 or H1 is the claim by writing claim next to the correct box. 1. Use a the following data and a .01 significance level to test the claim that the Poway’s varsity baseball team has a higher average of hits per game than TP. Use the following data from each teams last 10 games. (2 sample T test)/(2 Sample T Interval) Torrey Kndy Grm Slv LCC MC MC MC RB RB RB Pines 8 8 10 9 10 15 10 4 9 3 Poway LCC 11
Oty R 12
Edn
GrVy
WV
WV
WV
MC
MC
MC
6
12
15
12
10
15
19
15
Graph:
H0 :
H1 :
n1
n2
df1
df 2
X1
X2
s1
s2
CV :
TS : α= <
<
2. Use the data from question 1 and a .01 significance level to test the claim that Poway has the same proportion of games with less than 8 hits than TP. (2 Prop Z Test)/(2 Prop Z interval) Graph: H0 : H1 :
x1
x2
n1
n2
^
p1 CV : p value =
^
p2 TS : α=
<
<
3. Use the data from question 1 and a .05 significance level to test the claim that the Poway varies more than the TP. Use Table A-5 to find CV (2 Sample F Test) Graph:
H0 :
H1 :
n1
n2
df1
df 2
X1
X2
s1
s2
CV :
TS : α=
4. Use the following data and a .05 significance level to test the claim That Coach Smith’s weight gain plan is effective at helping athletes gain weight after being on it for 3 months. Weights measured in pounds. (T test on the difference) Before 115 145 162 171 138
Chapter 9 Review Worksheet TP vs. Poway baseball.pdf ...
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