15. Suppose you are conducting a hypothesis test for the difference between two
ID: 3316730 • Letter: 1
Question
15. Suppose you are conducting a hypothesis test for the difference between two population means. You take a samples from each population, one with 10 subjects and another with 7 subjects. Identify the degrees of freedom for the critical values 17 16 16. Identify the hypotheses: A researcher claims that the majority of people have used their phones for playing video games Hop=.5 H1: p>5 Ho: p> 5 -Hop:5 H1: p 100 _Ho> 100-Ho: X> 100 H1: x 100 H1: > 100 H1:=100 H1:x= 100 18.Identify the hypotheses: A school official claims that the percentage of STEM and non STEM majors is equal Ht: Ht: P P +5 12 19. Identify the hypotheses: A researcher claims that the mean age of male college students is no different than the mean age of female college students. +82 H1: 1 = 2 20. In a hypotheses test for the difference of two means, by assuming that the null hypothesis is true we can say that X x20Explanation / Answer
Solution:-
16)
State the hypotheses. The first step is to state the null hypothesis and an alternative hypothesis.
Null hypothesis: P < 0.50
Alternative hypothesis: P > 0.50
Note that these hypotheses constitute a one-tailed test.
17)
State the hypotheses. The first step is to state the null hypothesis and an alternative hypothesis.
Null hypothesis: < 100
Alternative hypothesis: > 100
Note that these hypotheses constitute a one-tailed test.
18)
State the hypotheses. The first step is to state the null hypothesis and an alternative hypothesis.
Null hypothesis: P = 0.80
Alternative hypothesis: P 0.80
Note that these hypotheses constitute a two-tailed test.
19)
State the hypotheses. The first step is to state the null hypothesis and an alternative hypothesis.
Null hypothesis: 1 - 2 = 0
Alternative hypothesis: 1 - 2 0
Note that these hypotheses constitute a two-tailed test.
20) 1 - 2 = 0
State the hypotheses. The first step is to state the null hypothesis and an alternative hypothesis.
Null hypothesis: 1 - 2 = 0
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