Question

In: Statistics and Probability

The health of the bear population in Yellowstone National Park is monitored by periodic measurements taken...

The health of the bear population in Yellowstone National Park is monitored by

periodic measurements taken from anesthetized bears. In a sample of 100 bears, the mean weight was found to be 185 lbs. Assume that ơ (population standard deviation) is known to be 125 lbs, use a 0.03 significance level to test the claim that the population mean weight of bears is equal to 210 lbs.

  1. State the claim in symbolic form.

(a) µ £ .210                (b) µ ³ .185       (c) µ = 185                 (d) µ = 210

  1. Identify the null and alternative hypotheses:

(A) Ho: µ ³ 210    H1: µ < 210                             (b) Ho: µ = 210    H1: µ ≠ 210

(c) Ho: µ ≠ 210 H1: µ = 210                              (d) Ho: µ £ 185    H1: µ > 185

  1. What type of hypothesis test is this?
    1. left-tail                    (b) right-tailed            (c) two-tailed
  1. What is the value of the test statistic?

(a) 2.00                (b) 0.0228                    (c) -2.00                       (d) .0456

  1. What is the P-value?

(a) 0.0228            (b) 0.456                      (c) -2.00                       (d) 0.0456

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Solutions

Expert Solution

a)

Claim:  (d) µ = 210

c)

Two tailed

Other answers:


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