For 16 you would want to do sin(26)=17/x, computing that would give you 38.7799, while for 18 you would want to do sin(69)=11/x, computing that would give you 11.7826
Answer:
We reject the Null and conclude that the mean costs of a meal at fast food restaurants in two different cities are different.
Step-by-step explanation:
Given :
City n x s
A 26 $4.05 $0.55
B 32 $5.15 $0.85
H0 : μ1 - μ2 = 0
H0 : μ1 - μ2 ≠ 0
n1 = 26 ; x1 = 4.05 ; s1 = 0.55
n2 = 32 ; x2 = 5.15 ; s2 = 0.85
Tstatistic :
(x1 - x2) / √(s1²/n1 + s2²/n2)
(4.05 - 5.15) / √(0.55²/26 + 0.85²/32)
-1.1 / 0.1849668
= - 5.947
Using the smaller n;
df = n - 1 ; 26 - 1 = 25
Pvalue = (-5.947, 24)
Pvalue = 0.000001
Since Pvalue < α ; We reject the Null and conclude that the mean costs of a meal at fast food restaurants in two different cities are different.
the square and the square root should cancel so your left with only 50xy
The required percentage of leagues that have fewer than 7 teams is 25%
Box plots and Quartiles
A boxplot is a standardized way of displaying the distribution of data based on a five number summary. It consists of the minimum point, m<u>aximum point, quartiles and medians</u>
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From the given boxplot, you can see that football league that have fewer than 7 teams occupies 1/4th of the total team. Hence the required peprcentage will be;
Percentage of those that have fewer than 7 teams = 1/4 * 100
Percentage of those that have fewer than 7 teams = 25%
Hence the required of leagues that have fewer than 7 teams is 25%
Learn more on boxplot here: brainly.com/question/14277132
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