An employee compiled sales data for a company once each month. The scatter plot below shows the sales (in multiples of $1000) fo
r the company over time (in months). The equation represents the linear model for this data.
y = 0.94x + 12.5
According to the model, how much do the company's sales increase per month?
$940
$1250
$5000
$9400
$12,500
A graph measuring sales in relation to time. A line indicates that sales increase as time increases
y = 0.94x + 12.5
According to the model, how much do the company's sales increase per month?
$940
$1250
$5000
$9400
$12,500
A graph measuring sales in relation to time. A line indicates that sales increase as time increases
2 answers:
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Answer:
(D) 200 men and 2,000 women
Step-by-step explanation:
To have an approximately normal distribution for the difference between proportions, we have to have sample sizes that are big enough to satisfy this conditions:
For men, we have p=0.08, so we have:
The sample size for men has to be at least 125 individuals.
For women, we have p=0.005:
The sample size for women has to be at least 2000 individuals.
The option that satisfy the requirements for men and women is Option D, as the others don't have enough sample size for women.