Answer:
Test statistic = 3.863
Step-by-step explanation:
We are told that most adults would erase all of their personal information online if they could. Since the word "most" is used, it means more than 50% or 50 percent.
So, p_o = 0.5
Also, we are told that 58 % of them would erase all of their personal information online if they could.
Thus, p^ = 0.58
Number of randomly selected adults; n = 583
The test statistic formula for hypothesis test for proportion is given by:
z = (p^ - p_o)/[√[p_o(1 - p_o)/n]
Plugging in the relevant values, we have;
z = (0.58 - 0.5)/[√[0.5(1 - 0.5)/583]
z = 0.08/0.02070788416
z = 3.863
Answer:
5y - 1 = 3y + 2
2y = 3
y = 1.5
Step-by-step explanation:
The mean of the data without the outliers will be B 65.
Answer:
H. 15 ft by 15 ft
Step-by-step explanation:
area of square = side²
225 ft² = side²
side = √(225 ft²)
side = 15 ft
Answer: H. 15 ft by 15 ft
Answer:
250
Step-by-step explanation:
36% are rabbits, and 28% are dogs. That means the percent that are hamsters is:
100% − 36% − 28% = 36%
There are 160 dogs and hamsters, which are 28% + 36% = 64% of the pets. Therefore, we can write and solve a proportion:
160 / 64% = x / 100%
x = 250
There are a total of 250 pets.
