Answer:
Therefore, the data is best represented by:
Step-by-step explanation:
We have a table indicating the estimated lines of code produced by computer programmers per hour when x individuals are engaged.
The question asks which model accurately reflects this data.
To determine this, we will substitute the values of x into each function to see which one accurately produces the corresponding y (f(x)) values provided in the table:
We are presented with four functions, which are:
A)
B)
C)
D)
We'll create a table displaying these values at various x levels.
x A B C D
2 66.66 49.3 52.5 50
4 94.57 71.44 106.3 104
6 134.14 103.57 160.1 158
8 190.27 150.14 213.9 212
10 269.91 217.64 267.7 266
12 382.85 315.5 321.5 320.
Thus, the function that suitably represents the data is:
Option C.
y=26.9x-1.3
Answer:
At least 315
Step-by-step explanation:
A journalist intends to find the average annual salary of CEOs within the S&P 1,500. Due to time constraints, a sample is used.
Standard deviation of the sample (s) = 449300
Sample size = n
Permissible margin of error = 50000
Z critical value = 1.96
Thus, 1.96 times the standard error equals 50000.
Standard error equals 25510.20
Standard deviation divided by the square root of n = 25510.20
By simplifying, we can derive:
Thus, the minimum sample size required is 315.