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Clgarette Smoking A researcher found that a cigarette smoker smokes on average 33 cigarettes a day. She feels that this average is too high. She selected a random sample of 10 smokers and found that the mean number of cigarettes they smoked per day was 27. The sample standard deviation was \( 2.5 \). At a \( =0.01 \), is there enough evidence to support her claim? Assume that the population is approximately normally distributed. Use the \( P \)-value method and tables. Part: \( 0 / 5 \) Part 1 of 5 (o) State the hypotheses and identify the claim.
(a) State the hypotheses and identify the claim. \[ \begin{array}{l} H_{0}: \\ H_{1} \text { : } \end{array} \] This hypothesis test is a test.
(a) State the hypotheses and identify the claim. (b) Compute the test value. (c) Find the interval for the \( P \)-value. (d) Make the decision. (e) Summarize the results.

Given data sample size n=10 sample mean x?=27 sample standard deviation s=2.5 Hypothesized mean ?o=33 significance level ?=0.01 a) null and alternativ

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