C a breast cancer patient believes that the

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MAT201 Basic Statistics SLP 4 First Try Quiz Jan -2020.docx

C A breast cancer patient believes that the experimental drug has an 80 success from MAT 201 at Trident University International

Question 6   ( 3 points ) We want to test whether the mean retirement savings of families between the ages of 56 and 61 is $ 163,577 . State the null and alternative hypothesis .
A Question 6 options :
A ) Ho : µ≥ 163,577 versus Ha : µ< 163,577
B ) Ho : μ = 163,577 versus Ha: μ ≠ 163,577
C ) Ho : μ ≤ 163,577 versus Ha : μ > 163,577
Question 7   ( 3 points ) A certain experimental drug claims a cure rate of at least 80 % for females with breast cancer . Describe the Type I error .
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Question 8   ( 3 points ) When do we worry about the possibility of committing a type II error ?
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Question 10   ( 3 points ) oSs_1932222 A research analyst believes that average back - to - school spending is more than a trade group ’s prediction of $ 500 . Specify the null and alternative hypothesis .
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C) A breast cancer patient believes that the experimental drug has an 80% success rate.D) A breast cancer patient believes the cure rate for the drug is less than 80% when it is at least 80%.
Question 8(3 points)When do we worry about the possibility of committing a type II error?
o
?Question 9(3 points)Using a random sample of n = 50, the sample mean is = 13.5. Suppose that the population standard deviation is σ=2.5.Is the above statistical evidence sufficient to make the following claim μ ≠15:?o: μ=15??: μ ≠15α = 0.05.p value = 0Interpret the results using the p value test.Question 9 options:o
Question 10(3 points)A research analyst believes that average back-to-school spendingis more than a trade group’s prediction of $500. Specify the null and alternative hypothesis.oSs_1932222

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