When the points plotted on a graph that are joined together produce a straight line, which graph do we obtain
1 answer:
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Answer:
We reject the null hypothesis and accept the alternate hypothesis. Thus, it be concluded that the population mean is less than 20.
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 60
Sample mean, = 19.5
Sample size, n = 60
Alpha, α = 0.05
Population standard deviation, σ = 1.8
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
Now,
Since,
We reject the null hypothesis and accept the alternate hypothesis. Thus, it be concluded that the population mean is less than 20.
Answer:
Rita is left with approximately
Step-by-step explanation:
Given:
Price for trousers=
Price for shirt =
Price for headscarf =
Total Money she Spent = Price for trousers + Price for shirt + Price for headscarf =
Total Money she had before =
∴Total Money left = Total Money she had - Total Money she spent =
Rounding to nearest whole number ≈