The mean age of a sample of 25 people who were playing the slot machines in a casino was 48.7 years with a standard deviation of 6.8 years.  The mean age of a sample of 35 people who were playing roulette in the same casino was 55.3 years with a standard deviation of 3.2 years. Can it be concluded that the mean age of the people playing slot machines is less than those playing roulette at α =0.05? A.   Compute the test statistic, reporting it to 3 decimal places.   B.   Using the more conservative method of obtaining the degrees of freedom, obtain the critical value.   C.   What is the decision? Reject the null hypothesis Fail to reject the null hypothesis

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A: The population mean or the hypothesized mean is .The sample size is .The sample mean is .The sample…

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A: GivenBabies born after a gestation period of 32-35 weeks haveMean(μ)=2500standard…

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A:

Q: Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 2500 grams and…

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A: From the given information, Consider,  μ=$1570n=50x=$1680s=$180α=0.05

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A:

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Q: Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 3000 grams and…

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Q: Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 2500 grams and…

A:

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A: Given that

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A:

Q: The tallest living man at one time had a height of 246 cm. The shortest living man at that time had…

A: Height of tallest living man=246 cm Height of Shortest living man=78.3 cm μ=175.76σ=7.24

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A:

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A: Given that  Sample sizes n1=1087      , n2=1046      Sample means X̄1=10.49      , X̄2=9.45    ?1…

Q: At a local store, 65 female employees were randomly selected and it was found that their mean…

A:

Q: In a survey, the mean weight of 1032 rats was calculated to be 132 gr. The standard deviation of the…

A: Given data,n=1032μ=132s=3P(X<124.5<X<139.5)=?

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Q: Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 2500 grams and…

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Q: It takes an average of 14.5 minutes for blood to begin clotting after an injury. An EMT wants to see…

A:

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A: The sample size is 10, sample mean is 7.42 and sample standard deviation is 1.3.

Q: Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 3000 grams and…

A: The z score value can be find by using the below standard normal z score formula         z=x-μσ…

Q: The mean age of a random sample 25 people who were playing the slot machines is 48.7 years, and the…

A: That is, there is no evidence to conclude that the mean age of those playing the slot machines is…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.