A box of fruit has three times as many apples as oranges
1 answer:
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Answer:
It is very unusual as the probability to get a sample average of 75 or more customers if the manager had not offered the discount is 0.006
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 50
Standard Deviation, σ = 10
We are given that the distribution of number of customers is a bell shaped distribution that is a normal distribution.
In an attempt to increase the number of weekday customers, the manager offers a $10 membership discount on 5 consecutive weekdays and the sample mean of customers during this weekday period jumps to 75.
Formula:
a) P(sample average of 75 or more customers if the manager had not offered the discount)
P(x > 75)
Calculation the value from standard normal z table, we have,
It is very unusual as the probability to get a sample average of 75 or more customers if the manager had not offered the discount is 0.006
b) Yes, the managers discount strategy worked as it increased the average number of customers from 50 customers to 75 customers.
Answer:
Wilhelmina will put 1.66 ounces of peanut butter on each sandwich.
Step-by-step explanation:
Given:
Ounces of peanut butter Wilhelmina has =
Number of sandwiches prepared by her =
According to the question:
She puts equal amount of peanut butter on each sandwiches.
So,
We have to find the quantity of peanut butter used for each sandwiches.
Here the distribution is equal so we have to use division method.
Let ounces of peanut butter applied on each sandwich be 'x'
⇒
⇒
⇒ Ounces
So each sandwich will get 1.66 ounces of peanut butter.