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Finger [1]
3 years ago
8

What are the two decisions that you can make from performing a hypothesis​ test? What are the two decisions that you can make fr

om performing a hypothesis​ test?
Mathematics
1 answer:
fredd [130]3 years ago
4 0

Answer:

i dont know XD

Step-by-step explanation:

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Students in a statistics class are conducting a survey to estimate the mean number of units students at their college are enroll
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Answer:

The 95% confidence interval for the average number of units that students in their college are enrolled in is between 11.7 and 12.5 units.

Step-by-step explanation:

We have the standard deviation for the sample, so we use the t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 45 - 1 = 44

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 44 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2\frac{1.5}{\sqrt{45}} = 0.4

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 12.1 - 0.4 = 11.7 units

The upper end of the interval is the sample mean added to M. So it is 12.1 + 0.4 = 12.5 units

The 95% confidence interval for the average number of units that students in their college are enrolled in is between 11.7 and 12.5 units.

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2 years ago
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The following steps are used to rewrite the polynomial expression x(x-5y) 2y (x-5y
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An emperor penguin made 460 dives in 12 hours. At this rate, how many dives did the penguin make in 3 hours?
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Proportionality, assuming constant rate. 460 dives/12 hours = x dives/3 hours. Solve for x.
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Step-by-step explanation:

dhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhdhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuyxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvdhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuyjkdhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuyhkdhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuyjcdhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhdhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuyjbgdhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuydhjbgjkhxcbvjkhkjcxbvm,chcxbvkuyjkhdhjbgjkhxcbvjkhkjcxbvm,chcxbvkuyxcbvjkhkjcxbvm,chcxbvkuyxbvm,chcxbvkuyihbxbv

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2 years ago
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