A baseball team claims that the mean length of its games is more than 1.1 hours.

Question

A baseball team claims that the mean length of its games is more than 1.1 hours. State o and H in words and in symbols. Then determine whether the hypothesis test tor this claim is left-tailed, right-tailed, or two-tailed. Explain your reasoning State the null hypothesis in words and in symbols. Choose the correct answer below. A. The null h pothesis expressed in words is, the mean length of a baseball team's games is 1 1 hours." The null t pathesis is expressed symbolic as : 1.1 O B. The null hypothesis expressed in words is, "'the mean length of a baseball team's games is at least 1.1 hours.' The null hypothesis is expressed symbolically as, "Ho: Hz 1.1 C The null hypothesis expressed in words s, the mean le th of a baseball team s games is a most 1 hour The nulih po hes sis expressed symbolica as "H S11: O D The null hypothesis expressed in words is the mean length of a baseball team's games is not 1.1 hours. The null hypothesis is expressed symbolically as 1.1 State the altemative hypothesis in words and in symbols. Choose the comect answer below. OA. The alternative hypothesis expressed in words is, "the mean length of a baseball team's games is not 1.1 hours. " The alternative hypothesis is expressed symbolically as, "Ha: H 1.1. OB. The alternative hypothesis expressed in words is, "the mean length of a baseball team's games is more than 1.1 hours." The alternative hypothesis is expressed symbolically as, "Ha H 1.1. O C. The aiternative hypothesis expressed in words is, "the mean length of a baseball team's games is 1.1 hours." The alternative hypothesis is expressed symbolically as, Ha1.1. D. The ate at e hypothesis expressed in words is, "the mean length of a baseball team's games is ess than 1.1 hours." The a er ative hypothesis is expressed sm ica as m 1. The hypothesis test is because the | hypothesis contains

Explanation / Answer

correct option is A

Null hypothesis in words and symbol is

A. The null hypothesis expressed in words is , "the mean length of a baseball teams games is 1.1 hours." The null hypothesis expressed symbolically as Ho : u =1.1

correct option is B

Alternative hypothesis in words and symbol is

B. The alternative hypothesis expressed in words is , "the mean length of a baseball teams games is more than 1.1 hours." The alternative hypothesis expressed symbolically as Ha : u >1.1

The hypothesis test is right tailed because the Ha : u >1.1 hypothesis contains

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