Statistics and probability help (1 Viewer)

mgg20

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2023
I was wondering if someone could help me with this question? this one has really confused me, and unfortunately is worth 14 marks.

Q: Wildlife biologists inspect 157 deer taken by hunters and find 33 of them carrying ticks that test positive for lyme disease. Previous data indicates that the percentage of deer carrying such ticks is 25%.

Is there significant evidence that the percentage of deer carrying ticks that test positive for lyme disease has decreased?
a) write appropriate hypotheses
b) check the assumption and conditions
c) perform the hypothesis test and fine the P-value
d) state your conclusion in plain english. Use a significance level of 5%
e) construct a 90% confidence interval for the true percentage of deer that carry the ticks, and comment on your interval in relation to your conclusion from part d).

Thank you very much for the help!
 

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