Answer:
27 7/9%
Step-by-step explanation:
Take the selling price and subtract the cost
920 -720 = 200
Divide it by the cost
200/720
.27777777
Change to percent form
27.777777%
27 7/9%
$1.3 per lemon. I divided 8 by $6 and got 1.3.
U would do 10+5 first then u would do 5+2 so 15+7 =22
Answer:
8+12+16=36
Step-by-step explanation:
Answer:
We can conclude that the experimental course effective at the alpha = 0.05 level of significance.
Step-by-step explanation:
Let p be the proportion of students from experimental course who complete the course with a letter grade of A, B, or C. Null and alternative hypotheses are:
H_0: p = 0.45
H_1: p > 0.45
Test statistic can be found using the equation
where
- p(s) is the sample proportion of students enrolled experimental course and complete with a letter grade of A, B, or C (
)
- p is the success proportion assumed under null hypothesis. (0.45)
- N is the sample size (20)
Then
≈4.045
Since the <em>one tailed</em> 19 <em>degrees of freedom </em>p-value is ≈0.0003<0.05 we can conclude that the experimental course effective at the alpha = 0.05 level of significance.