sjeikdom0
2021-02-24
Answered

To state:The null and alternative hypotheses.

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irwchh

Answered 2021-02-25
Author has **102** answers

Justification:

Here, the claim is that the median tenure for workers from the representatives

Here, the claim is that the median tenure for workers from the representatives

asked 2020-10-21

An in-ground pond has the shape of a rectangular prism. The pond has a depth of 24 inches and a volume of 72,000 cubic inches. The length of the pond is two times its width.

Find the length and width of the pond.

Find the length and width of the pond.

asked 2022-04-19

asked 2021-07-31

Two different analytical tests can be used to determine the impurity level in steel alloys. Nine specimens are tested using both procedures, and the results are shown in the following tabulation.

Find the

asked 2022-05-07

I'm trying to solve following type of combined date given question. Imagined that there's two factories. They are X and Y. "X" factory has 10 workers and "Y" has 20 workers. These two factory's production respectively given as Σx^2=2950 and ΣY^2=5000. Moreover, "X" factory mean is 18 and "Y" factory mean is 15.

If the whole population is considered as a one. How to calculate the mean and standard deviation in a situation like this one? I'm not expecting the final answer, I rather would like to know the procedure that how to solve such a question.

If the whole population is considered as a one. How to calculate the mean and standard deviation in a situation like this one? I'm not expecting the final answer, I rather would like to know the procedure that how to solve such a question.

asked 2021-03-08

Decide which of the following statements are true.
Answer:
square Normal distributions are bell-shaped, but they do not have to be symmetric.
square The line of symmetry for all normal distributions is x
square On any normal distribution curve, you can find data values more than 5 standard v square deviations above the mean.
square The x-axis is a horizontal asymptote for all normal distributions.

asked 2022-04-22

Is a $99\mathrm{\%}$ upper confidence bound the upper limit of a $99\mathrm{\%}$ confidence interval?

asked 2021-08-03

Suppose that the standard deviation of the tube life for a particular brand of TV picture tube is known to be $\sigma =400$ , but that the mean operating life is not known. Overall, the operating life of the tubes is assumed to be approximately normally distributed.

For a sample of$n=15$ , the mean operating life is $\stackrel{\u2015}{X}=8900$ hr. Determine (i) the 95 percent and (ii) the 90 percent confidence intervals for estimating the population mean.

For a sample of