Write 2mm in meter using decimals
1 answer:
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Answer:
0.9 grams
Step-by-step explanation:
The point estimate for the average weight of Soap Bar A is:
The point estimate for the average weight of Soap Bar B is:
Therefore, the point estimate for the true difference between the given population means is:
The point estimate for the difference is 0.9 grams.
Answer:
The company should guarantee a lifetime of less than equal to 20.95 years so that less than 3% of the television sets fail while under warranty.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 36 years
Standard Deviation, σ = 8 years
We are given that the distribution of life of television sets is a bell shaped distribution that is a normal distribution.
Formula:
We have to find the value of x such that the probability is 0.03.
Calculation the value from standard normal z table, we have,
Thus, the company should guarantee a lifetime of less than or equal to 20.95 years so that less than 3% of the television sets fail while under warranty.