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TiliK225 [7]
3 years ago
14

Find the critical value t for the confidence level c= 0.98 and sample size n=7.

Mathematics
1 answer:
kenny6666 [7]3 years ago
8 0

Answer:

The critical value is T = 3.143.

Step-by-step explanation:

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 = 7 - 1 = 6

98% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 6 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.98}{2} = 0.99. So we have T = 3.143.

The critical value is T = 3.143.

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5/4 P dollars

Step-by-step explanation:

Given that,

price of pony =  P

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3 years ago
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3 years ago
A party mix is made by adding nuts that sell for $2.50 per kg to a cereal mixture that sells for $1 per kg. How much of each sho
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Step 3. We work out the difference between the two above numbers.

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Step 4. We work out the difference between the nut mix and the cereal mix.

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Step 5. We divide the answer to step 3 ($66) by the difference between the nut mix and cereal mix.

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Step 6. The answer to step 5 is the mass of the cereal mix. We then minus 44kg from the total mix mass of 60kg to get the mass of the nut mix.

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Step 7. We double check.

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Hope this helped!

Bluey :)

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3 years ago
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