D. all non-negative integers less than or equal to 100
Answer:
To be honest, I think I would ask a professor because I am not a professional.
Step-by-step explanation:
Answer:
The value of the test statistic z for this hypothesis test is -2.79
Step-by-step explanation:
Consider the provided information.
To calculate the test statistic use the formula:
Where, z is Test statistics, n is Sample size, p₀ = Null hypothesized value and = Observed proportion.
p₀ = 0.50
Thus 1-p₀= 0.50
42% responded that if they had a cell phone, thus
The sample size is 305.
Substitute the respective values in the above formula.
Hence, the value of the test statistic z for this hypothesis test is -2.79
Answer: $5.10
Step-by-step explanation: 12 3/4 divided by 0.40
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