2. A travel agent claims that the average of the number of rooms in hotels in a large city is 500. At α = 0.01, is the claim realistic? The data for a random sample of seven hotels are shown.

p-value = 2*P(t < -0.5712 when df = 6) = 2*tcdf(-100,-0.5712,6) = 0.59

Conclusion: Since the p-value is greater than 1%, fail to reject.

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The test results support the claim.

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.

i hope this is what you were looking for.

see attached graph