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3 years ago

The problem for my last question. Plz answer!

Mathematics

1 answer:

Svetlanka [38]3 years ago

4 0

Answer:

Find the difference between 4.5 and 40 which is 35.5 then divided that by 100 since you want the percent and that equals 0.35 which is 35%

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Fifty specimens of a new computer chip were tested for speed in a certain application, along with 50 specimens of chips with the

Murljashka [212]

Answer:

Under 99% confidence level we can say that mean speed of the new chips is greater than that of the old chips

Step-by-step explanation:

$H_{0}$ : Mean speed of the new chip is the same as the old chip

$H_{a}$ : Mean speed of the new chip is greater than the old chip

to calculate the z-statistic we can use the formula:

z= $\frac{M_{n}-M_{o}}{\sqrt{\frac{s_{n}^2}{N_{n}} +\frac{s_{o}^2}{N_{o}} } }$

if we put the numbers then

z= $\frac{495.6-481.2}{\sqrt{\frac{19.4^2}{65}} +\frac{14.3^2}{65} } }$ =4.8171

The probability of this z-statistic is < 0.001 Therefore Under 99% confidence level we can say that mean speed of the new chips is greater than that of the old chips

4 0

3 years ago

If your ice cream maker makes 6 pints of ice cream how many liters does it make?

elena55 [62]

2.83906 liters because there are 0.473176 liters in 1 pint.

6 0

3 years ago

6 inches how many centimeters. (Round to the nearest tenth if needed)

Artist 52 [7]

15.24 cm rounded to 15.2 cm

8 0

3 years ago

Read 2 more answers

A survey was taken on pet ownership. 750 people were covered on the first day of the survey. The number tripled every subsequent

wlad13 [49]

Day one: 750 * 1 = 750
day two: 750 * 3 = 2250
day three: 2250 * 3 = 6750
day four: 6750 * 3 = 20250
day five: 20250 * 3 = 60750
day six: 60750 * 3 = 182250
add it all together: 750 + 2250 + 6750 + 20250 + 60750 + 182250 = <span>273000

The answer is C, </span>273000.

6 0

4 years ago

Please find x ft, pleeaase help

Vaselesa [24]

Answer:

x=238 plus 0

Step-by-step explanation:

think

3 0

2 years ago