Nadia bought 4.3 ponds of ham on Tuesday and 1.7 ponds of ham on Wednesday. She spent a total of $41.94. What was the price of t
1 answer:
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Answer:
We conclude that there has been a significant decrease in the average price homes.
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = $220,000
Sample mean, = $210,000
Sample size, n = 81
Significance level, α = 0.051
Population standard deviation, σ = $36,000
First, we design the null and the alternate hypothesis
We use One-tailed z test to perform this hypothesis.
Formula:
Putting all the values, we have
Calculating the p-value from the z-table, we have:
P-value = 0 .00621
Since,
P-value < Significance level
We reject the null hypothesis and accept the alternate hypothesis. Thus, there has been a significant decrease in the average price homes.
Answer:
For minutes less than 50, Verizon's monthly plan will be less expensive then T mobiles.
Step-by-step explanation:
Let the minutes used be .
Given:
Cost per minute by Verizon = $ 0.50
∴ Total cost for minutes by Verizon =
Cost per minute by T mobile = $ 0.10
∴ Cost for minutes by T mobile =
Fixed cost charged by T mobile = $ 20
Therefore, the total cost charged by T mobile =
Now, for Verizon cost to be less than T mobile's cost,
Therefore, for , Verizon's monthly plan will be less than that of T mobile's plan.
So, for up to 50 minutes, Verizon's plan is cheaper than T mobile's plan.