Are the data shown in this line plot skewed left, skewed right, or not skewed? skewed left not skewed skewed rightLine plot over
2 answers:
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Answer:
32 days must be sampled to test the proposed hypothesis.
Step-by-step explanation:
Consider the provided information.
The average number of person-hours per day spent on these task was .
The actual value of μ is 12 hours or less i.e μ=12
She wants a test having α=0.05
The probability of a type II error of at most β=0.10 and σ=7.64.
δ = μ-μ0
= 12-16
= -4
Now use the formula for calculating the sample size:
Substitute the respective values.
Hence, 32 days must be sampled to test the proposed hypothesis.
Answer:
Check Explanation
Step-by-step explanation:
The complete question plus diagram is presented in the attached image to this solution.
From the attached image, the dimensions of the playground drawn will be a bit variable now as zooming and some editing might have tampered with the original intended dimensions to be measured.
But still, let us assume that on measuring the rectangular playground shown, we obtain approximately that the length is 4.5 cm and the breadth is 2 cm.
The scale to convert to real life is 1;500 indicating that
1 cm on the drawing = 500 cm lenght units of the real playground.
So,
4.5 cm on the drawing = 4.5 × 500 = 2250 cm of the playground
2 cm on the drawing = 2 × 500 = 1000 cm of the playground.
Hence, the real life dimensions of the playground is 2250 cm by 1000 cm.
In meters, that is 2.25 m by 1 m
The perimeter of a rectangular figure is given as
Perimeter = 2(Length + Breadth)
= 2(2.25 + 1)
= 6.5 m
Hope this Helps!!!
