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solniwko [45]
2 years ago
9

Select the correct answer.

Business
1 answer:
alexira [117]2 years ago
5 0

Answer:

Jessica calls her colleagues informing them about her new bakery business.

Explanation:

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An automobile battery manufacturer offers a 39/50 warranty on its batteries. The first number in the warranty code is the free-r
balandron [24]

Answer:

1)

If the manufacturer's assumptions are correct, it would need to replace 8.23% of its batteries free of charge.

Option a) 8.23% is the correct option

2)

the required standard deviation is 3.8

Option a) 3.8 is the correct answer

Explanation:

Given the data in the question;

mean μ = 44

standard deviation σ = 3.6

if a battery fails within 39 months of purchase, the manufacturer replaces the battery at no charge to the consumer. If the battery fails after 39 months but within 50 months

1)

If the manufacturer's assumptions are correct, it would need to replace_____ of its batteries free of charge

p( X < 39 ) = P( X-μ/σ < 39-μ/σ )

we substitute

= p( Z < ((39-44)/3.6 ))

= p( Z < -1.39 )

from standard normal table; p( Z < -1.39 ) = 0.08226 ≈ 0.0823

p( X < 39 ) = 0.0823 or 8.23%

Therefore, If the manufacturer's assumptions are correct, it would need to replace 8.23% of its batteries free of charge.

Option a) 8.23% is the correct option

2)

The company finds that it s replacing 9.34% of its batteries free of charge. It suspects that its assumption about the standard deviation of the life of its batteries is incorrect. A standard deviation of ______ results in a 9.34% replacement rate.

given that;

P( Z < x-μ/σ ) = 9.34%

⇒ P( Z < 39-44/σ ) = 0.0934 ----- let this be equation 1

now, from standard normal tables

∅( -1.32 ) = 0.0934   ---------- let this equation 2

so from equation 1 and 2

39-44/σ = -132

-5/σ = -1.32

σ  = -5 / - 1.32

σ  = 3.7879 ≈ 3.8

Therefore, the required standard deviation is 3.8

Option a) 3.8 is the correct answer

7 0
2 years ago
Suppose C1 and C2 form a partition of sample space S. Suppose A and B are two events such that the following statements are true
kirza4 [7]

Answer:

Option b. A and B are conditionally independent given C2.

Explanation:

The conditional probability of an event is the probability that a given event will occur given that another event, say A has already occurred.

In a case where events A and B are independent (in this case, where the probability of A has no  effect on the probability of B occurring), the conditional probability of an event B given that A has taken place is simply the probability of the event A.

If the two events are not independent, then the probability of an event occurs as an intersection of set A and B.

6 0
3 years ago
Which one sounds better?<br> Basic Betty OR Basic Betsey
Arlecino [84]

Answer:

Basic Betty

Explanation:

Sounds more normal

6 0
3 years ago
Read 2 more answers
Internationalization is the vision of creating one world unit, a single market entity.
Bess [88]
Iternationa;zation is the vision of creating one world unit a single market entity, b.
3 0
3 years ago
Which of the following institutional investors most likely must spend a target percentage of the portfolio annually?
konstantin123 [22]

Answer: Endowments

Explanation:

The institutional investors that most likely must spend a target percentage of the portfolio annually is the endowments.

Endowment fund refers to the long term fund that is used for perpetual operations and usually set up by colleges or in hospitals

The fund then covers the expenses relating to provision of services for the students. A portion of the endowment is allowed to be use for every fiscal year.

7 0
2 years ago
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