Answer:
z=-2.09
Step-by-step explanation:
Given that a study of 138 penalty shots in World Cup Finals games between 1982 and 1994 found that the goalkeeper correctly guessed the direction of the kick only 41% of the time.
Set up hypotheses as:
(left tailed test at 5% significance level)
Standard error = 0.043
Sample proportion p = 0.41
p difference =
Test statistic Z = p diff/std error
=
Z = -2.09
Answer:
Step-by-step explanation:
1) Convert to improper fraction. Use this rule:
.
2) Simplify 4 * 3 to 12.
3) Simplify 12 + 1 to 13.
4) Convert to improper fraction. Use this rule:
.
5) Simplify 1 * 3 to 3.
6) Simplify 3 + 2 to 5.
7) Join the denominators.
8) Simplify.
9) Convert to mixed fraction.
(Decimal Form: 2.666667)
Thank you,
Eddie
Given,
Rate of free fall = 216 km/h
Solution,
km/h to m/s is converted as follows :
So, the rate of fall is 60 m/s.
If t = 20 s
Assume, initial velocity = 0
It will move under the action of gravity.
Using equation of motion,
Hence, this is all for the solution.