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liq [111]
3 years ago
13

If np >5 and nq>5 estimate P (fewer than 4) with n=13 p=0.4 by using normal distribution as an approximate to the binomial

distribution if np <5 or nq< then state that the normal approximation is not suitable.
Mathematics
1 answer:
9966 [12]3 years ago
7 0
The Normal approximation to the binomial 

<span>is as follows
</span>
<span>mean=13(.5)=6.5 </span>
<span>variance=6.5(.5)=3.25 </span>
<span>Pr[fewer than 4]= </span>
<span>Pr[N<=3] Apply the continuity correction </span>
<span>Pr[N<=3.5]~=Pr[Z<3.5-6.5/sqrt(3.25)]= 
</span>
<span>Pr[Z<-1.66]=0.048457226

I hope my answer has come to your help. God bless and have a nice day ahead!</span>
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Rose bought a bag of potatoes for $6.00 and some granola bars for $5.25 per package. Her total bill was $74.25. How many package
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Answer:

Rose bought 14 packages of granola bars.

Step-by-step explanation:

Total bill = 1 bag of potatoes + x amount of packages of granola bars

Total bill = $74.25

1 bag of potatoes = $6.00

1 package of granola bar = 5.25

We set the equation to:

74.25 = 6.00 + 5.25x

Subtract 6.00 from both sides:

68.25 = 5.25x

Divide both sides by 5.25 to leave x by itself

68.25/5.25 = 5.25x/5.25

13 = x

This means Rose bought 13 packages of granola bars.

Let's recheck our work by inputting x = 13 into the equation:

74.25 = 6.00 + 5.25(13)

74.25 = 6.00 + 68.25

74.25 = 74.25

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2 years ago
A manager wants to test whether two normally distributed and independent populations have equal variances. the appropriate test
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A manager wants to test whether two normally distributed and independent populations have equal variances. the appropriate test statistic for this test is a "F-statistics."

<h3>What is F-statistics?</h3>

An F statistic is a value obtained after performing an ANOVA test or even a regression analysis to determine whether the means of two populations differ significantly.

Some key features regarding the F-statistics are-

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To know more about the F-statistics, here

brainly.com/question/17256783

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2 years ago
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Answer:   B.) PQRST


Step-by-step explanation:

There are no options but if its the same question I just had on a test then this is the answer..

Hope this helps..

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Tom has 2 more than 5 times the number of CD’s that Jane has. Jane has 5 CD’s. Write an
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Step-by-step explanation:

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