James has 5 friends who are available to go to a baseball game with him, but he only has 2 extra tickets how many different choi
2 answers:
It is given that James has 5 friends who are available to go to a baseball game with him, but James has only has 2 extra tickets. This is a perfect example of a combinations question and we have been asked to choose 2 from a given 5. This can be spoken of as: Given 5 choose 2 and can be represented mathematically as a Combination:
Thus, James has 10 different choices to invite 2 friends.
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Answer:
Test statistic Z= 0.13008 < 1.96 at 0.10 level of significance
null hypothesis is accepted
There is no difference proportion of positive tests among men is different from the proportion of positive tests among women
Step-by-step explanation:
<em>Step(I)</em>:-
Given surveyed two random samples of 390 men and 360 women who were tested
first sample proportion
second sample proportion
Step(ii):-
Null hypothesis : H₀ : There is no difference proportion of positive tests among men is different from the proportion of positive tests among women
Alternative Hypothesis:-
There is difference between proportion of positive tests among men is different from the proportion of positive tests among women
where
P = 0.920
Test statistic Z = 0.13008
Level of significance = 0.10
The critical value Z₀.₁₀ = 1.645
Test statistic Z=0.13008 < 1.645 at 0.1 level of significance
Null hypothesis is accepted
There is no difference proportion of positive tests among men is different from the proportion of positive tests among women