The case is made that undergrads get under seven hours of rest each night all things considered.

To test this case, an arbitrary example of 22 understudies had a mean of 6.24 hours with a standard deviation of 1.93 hours.

Direct a theory test to see whether test information upholds that guarantee at the 5% importance level.

Your answer ought to incorporate the accompanying:

Invalid Hypothesis (Hint: the Null Hypothesis isn't Mu < 7)

Elective Hypothesis

Importance level

\2\

Test mean

Test standard deviation

P-esteem

Choice (Reject or Do Not Reject)

End (Complete explanation including "essentially")

Client assistance time is demonstrated as a remarkable irregular variable with mean 5 minutes.

Discover the likelihood that help for a client is between 2 minutes and 10 minutes.

Round your response to the closest 100th.

Before you answer the inquiry, what is the boundary for the outstanding dispersion. (Clue: the boundary isn't 5!).

Beforehand it was accounted for that teens spend a normal of 4.5 hours out of each week on the telephone.

An association guarantees the mean is higher and arbitrarily tests fifteen youngsters.

The example mean is 4.75 hours and the example standard deviation is 2.0 hours.

Lead a theory test to see whether test information upholds the case at the 5% critical level.

Your answer ought to incorporate the accompanying:

Invalid Hypothesis

Elective Hypothesis

Importance level

Test mean

Test standard deviation

P-esteem

Choice (Reject or Do Not Reject)

End (Complete explanation including "essentially")

The weight, in kilograms, of cereal in a container can be displayed by an ordinary dissemination with Mean ? what's more,

standard deviation 5.4 kg. Given that 10% of boxes contains under 17 kg. Find.

a. The estimation of ?.

b. The level of boxes that contain more than (17+4) kg.

c. In the event that the machine settings are changed so the heaviness of cereal in a container is ordinarily

conveyed with mean (17+3) kg and standard deviation of ?. Given that the likelihood of

boxes contains somewhere in the range of 17kg and (17+6) kg is 0.9671, discover the estimation of ?.