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Scorpion4ik [409]
3 years ago
5

Use a t-distribution to answer this question. Assume the samples are random samples from distributions that are reasonably norma

lly distributed, and that a t-statistic will be used for inference about the difference in sample means. State the degrees of freedom used.
Find the endpoints of the t-distribution with 2.5% beyond them in each tail if the samples have sizes n1=16 and n2=21.
Enter the exact answer for the degrees of freedom and round your answer for the endpoints to two decimal places.
Mathematics
1 answer:
ollegr [7]3 years ago
4 0

Answer:

Don't go on that link its a virus

Step-by-step explanation:

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The fraction of seat sold is 11/12
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Island Rent-a-Car charges a car rental fee of $40 plus $5 per hour. Wayne's Wheels charges a car rental fee of $25 plus $7.50 pe
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big shaq.

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write the slope-intercept form of the line with a slope of 2 and a y-intercept of -4. include your work in your final answer.
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5 0
3 years ago
Libby wants to buy 290 raspberry yogurts. They are sold in packs of 4. How many packs does she need to buy?
oksano4ka [1.4K]

Answer:

73 packs

Step-by-step explanation:

Find how many packs she has to buy by dividing 290 by 4, since each pack has 4 yogurts.

290/4

= 72.5

Since we need a whole number answer, round this up:

72.5

= 73

So, Libby will need to buy 73 packs

3 0
3 years ago
Jon ate too many holiday cookies and gained 2.2 kilograms in December. Then he went on a diet and lost 1.5 kilograms in January.
gogolik [260]

Answer:

Jon lost a total of 3 kilograms in these 3 months.

Step-by-step explanation:

Weight that Jon gained in December = 2.2 kilograms

Weight that Jon lost in January = 1.5 kilograms

Weight that Jon lost in February = 3.7 kilograms

Overall Change in his weight = Total Weight he gained - Total weight he Lost

Total weight he gained is 2.2 kilograms as he only gained weight in December. Total weight he lost will be sum of weights he lost in January and February.

So, total weight Jon lost = 1.5 + 3.7 = 5.2 kilograms

Thus,

Total change in Jon's Weight = 2.2 - 5.2 = -3.0 kilograms

This shows that Jon lost a total of 3 kilograms in these 3 months.

Conclusion:

The statement that best describe the total change in his weight is: Jon lost a total of 3 kilograms in these 3 months

5 0
3 years ago
Read 2 more answers
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