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Harlamova29_29 [7]
3 years ago
15

Advertising expenses are a significant component of the cost of goods sold. Listed below is a frequency distribution showing the

advertising expenditures for 63 manufacturing companies located in the Southwest. The mean expense is $50.63 million and the standard deviation is $11.48 million. Is it reasonable to conclude the sample data are from a population that follows a normal probability distribution?
Mathematics
1 answer:
vredina [299]3 years ago
6 0

Answer:hi

Step-by-step explanation:

Hi

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a store had 600 pounds of feed. after delivering equal amounts to 4 farmers , there are 60 pounds left. how many pounds did each
Daniel [21]

Answer: 135 pounds

Step-by-step explanation:

600-60=540

540/4=135

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3 years ago
What would be the first step to solve for n in the equation 3n-7=30?
taurus [48]
The first step would be to add 7 to both sides.
3n-7=30
add 7
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4 0
2 years ago
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What is 0.03 in simplest form?
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A soda bottling company’s manufacturing process is calibrated so that 99% of bottles are filled to within specifications, while
bija089 [108]

Answer:

The probability that the assembly line will be shut down is 0.00617.

Step-by-step explanation:

We are given that a soda bottling company’s manufacturing process is calibrated so that 99% of bottles are filled to within specifications, while 1% is not within specification.

Every hour, 12 random bottles are taken from the assembly line and tested. If 2 or more bottles in the sample are not within specification, the assembly line is shut down for recalibration.

Let X = <u><em>Number of bottles in the sample that are not within specification</em></u>.

The above situation can be represented through binomial distribution;

P(X=r)=\binom{n}{r} \times p^{r}\times (1-p)^{n-r};x=0,1,2,3,.....

where, n = number of trials (samples) taken = 12 bottles

             x = number of success  = 2 or more bottles

            p = probabilitiy of success which in our question is probability that  

                 bottles are not within specification, i.e. p = 0.01

So, X ~ Binom (n = 12, p = 0.01)

Now, the probability that the assembly line will be shut down is given by = P(X \geq 2)

  P(X \geq 2) = 1 - P(X = 0) - P(X = 1)

                 = 1-\binom{12}{0} \times 0.01^{0}\times (1-0.01)^{12-0}-\binom{12}{1} \times 0.01^{1}\times (1-0.01)^{12-1}

                 = 1-(1 \times 1\times 0.99^{12})-(12 \times 0.01^{1}\times 0.99^{11})

                 = <u>0.00617</u>

8 0
3 years ago
A football gained 11 yards on each of 8 plays. How many yards did they gain?
gladu [14]

Answer:he gained 88 yards

Step-by-step explanation: just do 11x 8 and you will get 88

so therefore the best option is a have a great day

4 0
2 years ago
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