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IrinaK [193]
3 years ago
6

To use the two sample t procedure to perform a significance test on the difference of two means, we assume: a) The populations'

standard deviation are known. b) The samples from each population are independent. c) The sample sizes are large. d) The distributions are exactly normal in each population.
Mathematics
1 answer:
Anika [276]3 years ago
7 0

Answer:

The option which is an exception is;

c) The sample sizes are large

Step-by-step explanation:

Here the requirement to perform a two sample t procedure are as follows;

1. The two samples have equal variance, hence the variance should be known

2. The samples for which the two sample t procedure is performed must be independent

3. The data are in alignment with the normal distribution probability

4. The samples are random samples taken from the different respective population

Since the sample size is known, we do not assume that the sample size are large.

Therefore options a), b) and d) are all correct except option c).

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Semmy [17]

Answer:

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Step-by-step explanation:

You multiply the number in front by -3.

2*-3=-6

-6*-3=18

18*-3=-54

-54*-3=162

162*-3=-486

-Please mark as brainliest!-

-Hope this helps!-

-Good Luck!-

7 0
3 years ago
Ben starts with a certain number of fruit chew packages.He puts 27 packages into each of 85 cases.He has 3 packages left.How man
Ganezh [65]
He would have started with a total of 2,278 packages of fruit chew packages.
First, you would multiply the 27 packages by the 85 cases wich is 2,275, then you would add the three leftover packages to the total making it 2,278.
Hope this was helpful. ;)
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yuradex [85]
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Andrew borrowed $700 from the bank to start a pressure washing business. The bank charged a simple interest rate of 7% per year.
Ede4ka [16]

Answer:

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Step-by-step explanation:

<u>Given:</u>

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<u>Interest amount:</u>

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