Answer:
12<|h-8|<22
Step-by-step explanation:
Answer:
56, 57, and 58.
Step-by-step explanation:
Answer:
If I had to guess
Step-by-step explanation:
I would say 11 degree or 90 degree.
Sorry if I am wrong. :_;
Answer:90 degrees
Step-by-step explanation:
Answer:
The calculated value of test statistic is z=2.48.
This has a P-value of P=0.00657.
If we state the null hypothesis at a significance level of , we would reject this null hypothesis as .
Step-by-step explanation:
We have in this problem, a hypothesis test of proportions.
The test statistic for this is the z-value, and is calculated like that:
Where the term 0.5/N is the correction for continuity and is negative in the cases that p>π.
p: proportion of the sample; π: proportion of the population; σ: standard deviation of the population.
The standard deviation of the population has to be calculated as:
The proportion of the sample (p) is .
Then, the test statistic z is
The P-value of this statistic is P(z>2.48)=0.00657
If we state the null hypothesis at a significance level of , we would reject this null hypothesis as .
Answer:
a) 0.2119 = 21.19% probability that the average percent of fat calories consumed is more than thirty-seven.
b) The first quartile for the average percent of fat calories is 33.31
Step-by-step explanation:
To solve this question, we have to understand the normal probability distribution and the central limit theorem.
Normal probability distribution:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean and standard deviation , the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Central limit theorem:
The Central Limit Theorem estabilishes that, for a random variable X, with mean and standard deviation , a large sample size can be approximated to a normal distribution with mean and standard deviation
In this problem, we have that:
(a) For the group of 16 individuals, find the probability that the average percent of fat calories consumed is more than thirty-seven. (Round your answer to four decimal places.)
This is the 1 subtracted by the pvalue of Z when X = 37. So
By the Central Limit Theorem
has a pvalue of 0.7881
1 - 0.7881 = 0.2119
0.2119 = 21.19% probability that the average percent of fat calories consumed is more than thirty-seven.
b) Find the first quartile for the average percent of fat calories. (Round your answer to two decimal places.) percent of fat calories
The 1st quartile is the 25th percentile. So this is the value of X when Z has a pvalue of 0.25. So it is X when Z = -0.675. So
The first quartile for the average percent of fat calories is 33.31
Answer: 151
Step-by-step
you need to first find the area of each piece of the tent
the 2 rectangular flaps would be 6*8= 48 each
the bottom would be 4*8=32
to find the area of the triangular pieces we need to know the height of each triangle, right now we only know sides. To find the height (the altitude) you draw a line straight down to make a 90 degree angle.
that will also cut your base in half (2 instead of 4) and make 6 your hypotenuse
now use the Pythagorean theorem to find the height of the triangle
Area of a triangle is
the area of one triangle is 11.31
so together it is 48+48+32+11.31+11.31= 150.6
round up to 151
Answer:
Cai's Would Be Bluer
Step-by-step explanation:
Since 2/5 is 40% and 5/11 is 45% Cai's would be bluer!
Cai's paint will be bluer because she used a higher percentage of blue paint (45.45%) in her mix compared to Casho who used 40% blue paint.
In order to determine whose paint mix will be bluer, we must compare the ratio of blue to red paint in each student's mix. Cai mixes 5 cups of blue and 6 cups of red paint. Casho mixes 2 cups of blue and 3 cups of red paint. We find the percentage of blue paint by dividing the amount of blue paint by the total amount of paint and then multiplying by 100. For Cai, it would be (5 / (5 + 6)) * 100 = 45.45% blue. For Casho, it would be (2 / (2 + 3)) * 100 = 40% blue. Thus, Cai's purple paint will be bluer because it has a higher percentage of blue paint.
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