Answer:
A warranty of 4.32 years should be provided.
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean and standard deviation , the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this question, we have that:
What warranty should be provided so that the company is replacing at most 5% of their toasters sold?
The warranty should be the 5th percentile, which is X when Z has a pvalue of 0.05. So it is X when Z = -1.645.
A warranty of 4.32 years should be provided.
Answer:
y>10
Step-by-step explanation:
Let me know if this helps
Answer:
D
Step-by-step explanation:
Because first you need to make the equation negative because X^2 need to be positive (easier to do)
x^2-6x-m
What times to -6 are
(2times-3) (-2 times -3)
(1times -6) and (-1times 6)
neither of these will be above 9 so d is correct
You have forty dollars in your account after five days.
It takes twenty days to get your account balance to 0.
8x-12=26
8x=26+12
8x=38
and your answer would is
x=4.75, x=19/4, or x= 4 3/4 depending on the form you need it in.