The ordered pairs (0, -2), (1, 1), (2, 4), (3, 7), and (4, 10) represent a function. What is a rule that represents this functio
1 answer:
You might be interested in
Answer:
Profit $5700
Step-by-step explanation:
To find loss/profit you subtract the expenses from the total income
Income from sales= $16000
Franchise fee= 5% of sales income
Rent=$1250
Utilities=$450
Wages=$4800
insurance=$300
supplies=$2700
Total expenses
=$1250+$450+$4800+$300+$2700+$800=$10300
Total income
=$16000
Profit
=$16000-$10300=$5700
Answer:
a: Sample mean: 20, Sample standard deviation: 1.732
b: 19.13 <µ < 20.87
c: 18.84< µ < 21.16
d: as the confidence level increases, the interval becomes wider
Step-by-step explanation:
a: Sample mean is found by adding up all the individual values of the sample, then dividing by the total number of values in the sample.
Sample standard deviation is the square root of the variance
See the first attached photo for the calculations of these values.
We need to create a 80% confidence interval for the population. Since n < 30, we will use a t-value with degree of freedom of 7 (the degree of freedom is always one less than the sample size.
Look for the column on the t-distribution chart that has "area in two tails" of 0.20 (80%), and row 7 (degree of freedom)
The t-value is 1.415
See the second attached photo for the construction of the confidence interval
We need to create a 90% confidence interval for the population. Since n < 30, we will use a t-value with degree of freedom of 7 (the degree of freedom is always one less than the sample size.
Look for the column on the t-distribution chart that has "area in two tails" of 0.10 (90%), and row 7 (degree of freedom)
The t-value is 1.895
See the third attached photo for the construction of the confidence interval
