Hypothesis testing question:
So I already found out the test statistic, critical-value, and p-value. Here is what I have:

Po = .7
P^ (p-hat) = .714286
Alpha = .05
n = 175
Z = .4124013
Z_alpha = 1.65
Ho (null): p = .7
Ha (alternative): p .7
p-value = .34016

I am not sure what to do in terms of determining if you should reject or accept the null etc... etc..., I know it is easy but I cannot find any notes on it.

Question

Hypothesis testing question:
So I already found out the test statistic, critical-value, and p-value. Here is what I have:

Po = .7
P^ (p-hat) = .714286
Alpha = .05
n = 175
Z = .4124013
Z_alpha = 1.65
Ho (null): p = .7
Ha (alternative): p > .7
p-value = .34016

I am not sure what to do in terms of determining if you should reject or accept the null etc... etc..., I know it is easy but I cannot find any notes on it.

anonymous · Answer

How do I know if I should reject or accept the null hypothesis? Here is a screenshot of the problem:

amistre64 · Answer

Ho has to have an equal sign associated with it
Ha is the inequality

speed > .70
speed <= .70

Ho = .70
Ha > .70

we can run a 1-PropZTest using x=125, n=175

amistre64 · Answer

1-PropZTest results

z = .41239...
pV = .3400...

amistre64 · Answer

the critical value is the z score associated with an area of .05    

invNorm(.05) = 1.645

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