A researcher administers a treatment to a sample of participants selected from a population with µ = 80. If the researcher obtains a sample mean of M = 88, given the same alpha level, which combination of factors is most likely to result in rejecting the null hypothesis?

when σ = 10 and α = .05 than null hypothesis is reject  

Explanation:

given data

µ = 80

M = 88

solution

get know that sample mean of z-score formula that is

z =       ......................1

here X is sample mean  and M is population mean  and s = σ that is standard deviation

so If we take here s =  σ = 5 and α = .05

so put here value in equation 1 we get

z =    

z = 1.6

so that corresponding p value = 0.05

as that here significant result  

p ≤ 0.05

so that we can say null hypothesis is reject

this question does't support enough resioning to answer.

1. artillery

2. jose san martin

3.their economies remained dependent on outside powers.

4. drafted new economies

5. democracies have replaced dictatorships