The points on the graph show how much Chef Allen pays for different amounts of beans
2 answers:
Answer:
See explanation
Step-by-step explanation:
The ordered pair (25,20) shows that Chef Allen pays $20 for 20 pounds of beans. The ratio of pounds to dollars is
A. Another plotted points are (5,4), (10,8), (15,12) and (20,16). Find the ratio of pounds to dollars in each case:
All points show the same ratio.
B. The line connecting given points is the graph showing how much Chef Allen pays for different amounts of beans. This line starts at the origin (0,0) and passes through the points (5,4), (10,8), (15,12) and (20,16).
C. If he cost of 25 pounds of beans is $20, then the cost of 50 pounds of beans is $40.
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Answer:
a)
b)The 99% confidence interval would be given by (0.301;0.355)
Step-by-step explanation:
1) Notation and definitions
number of permanent dwellings on the entire reservation that are traditional hogans.
random sample taken
estimated proportion of permanent dwellings on the entire reservation that are traditional hogans.
true population proportion of permanent dwellings on the entire reservation that are traditional hogans.
A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".
The margin of error is the range of values below and above the sample statistic in a confidence interval.
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The population proportion have the following distribution
Part a
The point of estimate for p=the proportion of all permanent dwellings on the entire reservation that are traditional hogans is given by:
Part b
In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 99% of confidence, our significance level would be given by and
. And the critical value would be given by:
The confidence interval for the mean is given by the following formula:
If we replace the values obtained we got:
The 99% confidence interval would be given by (0.301;0.355)