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seropon [69]
2 years ago
13

A suitcase must weigh less than 50 pounds, or an extra fee will be charged. Patrick’s suitcase now weighs 38 pounds. How much we

ight could Patrick add to the suitcase without paying an extra fee?
Mathematics
1 answer:
Dvinal [7]2 years ago
8 0

Answer:

12

Step-by-step explanation:

50 - 38 = 12

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Answer:

Step-by-step explanation:

The question is incomplete. The complete question is:

The mean annual tuition and fees for a sample of 15 private colleges was $35,500 with a standard deviation of $6500. A dotplot shows that it is reasonable to assume that the population is approximately normal. You wish to test whether the mean tuition and fees for private colleges is different from $32,500. State the null and alternate hypotheses. A) H0: 4 = 32,500, H:4=35,500 C) H: 4 = 35,500, H7:35,500 B) H: 4 = 32,500, H : 4 # 32,500 D) H0:41 # 32,500, H : 4 = 32,500

Solution

We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean

For the null hypothesis,

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For the alternative hypothesis,

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This is a two tailed test.

Since the number of samples is small and the population standard deviation is not given, the distribution is a student's t.

Since n = 15,

Degrees of freedom, df = n - 1 = 15 - 1 = 14

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Where

x = sample mean = 35500

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s = samples standard deviation = 6500

t = (35500 - 32500)/(6500/√15) = 1.79

We would determine the p value using the t test calculator. It becomes

p = 0.095

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Step-by-step explanation:

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