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
There are 12 inches in a foot so we can work this problem out in inches 3/5 is 80%......80% of 12 inches is 9.6 inches ....1/4 is 3 inches and 2/3 is 8 inches so we have 9.6,3,and8 now we multiply 9.6*3*8 for the answer to be 230.4 inches squared
Answer:
Plan A is a salary of $360 per month, plus a commission of 8% of sales. Plan B is a salary of $740 per month, plus a commission of 3% of sales.
Step-by-step explanation:
He is incorrect
when dividing by ten, move the decimal 1 number to the right
he was sort of correct on the first part, but in the second part, the zero would automatically be removed, due to the fact that it comes after the decimal.
the correct answer for the second part is 2.316
hope this helps
