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2 years ago

brainly hdd and ram memory both tests both come back with positive old tower pc doesn't always turn on and randomly

Mathematics

1 answer:

mash [69]2 years ago

6 0

The correct option is 4. PSU.

The hardware part that would be checked next is PSU.

<h3>What is Power Supply Unit PSU?</h3>

An internal piece of IT hardware is known as a power supply unit (PSU). Despite their name, power conversion devices, or PSUs, do not really supply power to systems.

Some key features of PSU are-

A power supply specifically transforms alternating high voltage current (AC) to direct current (DC) and regulates the DC output voltage to the precise tolerances needed for contemporary computing components.
There is, however, a PSU substitute that may be utilized in specific circumstances.
Electrical power can be transported inside network cables using Power over Ethernet (PoE), freeing the device from being bound to an outlet.
Because PoE can deliver wireless access points wherever it is most convenient and uses less room for wiring, it is perfect for systems that need greater flexibility.

To know more about power supply unit, here

brainly.com/question/24249197

#SPJ4

The correct question is-

A customer complains that his old tower PC doesn't always turn on and randomly shut off for hours. The HDD and RAM both tests both come back with positive results.

What hardware part would you check next?

NIC
EXT-USB HDD
PS/2
PSU
SSD

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3 years ago

I need help with my science work

melomori [17]

Q3) Ba= 2
N= 6
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3 years ago

Please can someone help!

ycow [4]

Answer:

x=117

Step-by-step explanation:

since there is 2 angles that they already give you the measurements with. you try to solve the 101 angle and subtract 180-101= 79. this is the angle beside 101. since a triangle is equal to 180 degrees; you add the 38 and 79 which equals 117. you subtract 180-117=63. That is the other angle on the inside of the triangle.

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4 years ago

An automatic filling machine is used to fill bottles with liquid detergent. A random sample of 18 bottles results in a sample st

Nookie1986 [14]

Answer:

$\frac{(17)(0.038)^2}{32.64} \leq \sigma^2 \leq \frac{(17)(0.038)^2}{6.66}$

$0.0008 \leq \sigma^2 \leq 0.0037$

Step-by-step explanation:

Data given and notation

s=0.038 represent the sample standard deviation

$\bar x$ represent the sample mean

n=18 the sample size

Confidence=97.5% or 0.975

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population mean or variance lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

The Chi Square distribution is the distribution of the sum of squared standard normal deviates .

Calculating the confidence interval

The confidence interval for the population variance is given by the following formula:

$\frac{(n-1)s^2}{\chi^2_{\alpha/2}} \leq \sigma^2 \leq \frac{(n-1)s^2}{\chi^2_{1-\alpha/2}}$

The next step would be calculate the critical values. First we need to calculate the degrees of freedom given by:

$df=n-1=18-1=17$

Since the Confidence is 0.975 or 97.5%, the value of $\alpha=0.025$ and $\alpha/2 =0.0125$ , and we can use excel, a calculator or a table to find the critical values.