Joaquin used the table to predict the cost of one year of education at a four-year public university. Category Predicted Cost tu
2 answers:
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Answer:
4.28 grams
Explanation:
The z score is used to determine by how many standard deviations the raw score is above or below the mean. The z score is given by the formula:
Given that:
P(x > 5.1 grams) = 5%, x = 5.1 grams, σ = 0.5 grams
P(x > 5.1 grams) = 5%
P(x < 5.1 grams) = 100% - 5% = 95%
P(x < 5.1) = 95%
From the normal distribution table, 95% corresponds with a z score of 1.645. Hence:
Answer:
B is better than A
Explanation:
Here, we want to compare “A” to “B”. It means if B’s amount is higher than A’s amount, it should be positive; If B’s amount is lower than A’s amount, it should be negative.
Net income for each alternative = Revenues – Costs
Since the net income is positive, B is better than A.
Please check attachment for for actual tabular calculations
