According to official data, the average annual expenditure on dental care in Kingston, Jamaica is at least $60,000 per person. A random sample of 64 persons showed that they spent an average of $55,000 on dental care last year with a standard deviation of $10,350. Test at the 5% significance level whether last year’s mean annual dental care expenditure per person in the parish was less than $60,000. c) find value of test statistic.

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A: Answers are:

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A: The mean mathematics SAT score for all people who took the SAT in a particular year was 514 with a…

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A:

Q: Suppose you plan to take a survey of Math&146 students asked how many miles they commute from their…

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Q: STEP ONE: STEP TWO: STEP THREE: STEP FOUR: STEP FIVE: STEP SIX: Test Statistic: Critical Value(s):

A: n1 = 123 n2 = 290   x1 = 0.83 x2 =1.39   s1 = 1.77s2 =3.06

Q: Are low-fat diets or low-carb diets more effective for weight loss? This question was addressed by a…

A: Given that, for a low-carbohydrate diet n1=77, x1=4.7 kg, s1=7.2 kg For a low-fat diet, n2=79,…

Q: The Florida Tribune published an article that claimed that nurses in Tampa earn more than nurses in…

A: We have to test given claim.

Q: In an effort to estimate the mean amount spent per customer for dinner at a major Atlanta…

A: The following information is provided:

Q: 3. Consumer Reports indicated that the mean braking distance (from 60 miles per hour) on wet…

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Q: assuming a standard deviation of $ 19,951 construct a 90% confidence interval for estimating the…

A: It is an important part of statistics. It is widely used.

Q: The Australian government would like to assess the impact of employment in different sectors on the…

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A:

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A:

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A: The sample size for first group is 43 and for second group is 57.

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A: We have given that  Sample size n=20 , sample mean =4  s=1 , 95%confidence.

Q: In its Fuel Economy Guide for 2016 model vehicles, the Environmental Protection Agency gives data on…

A: From the given information, mean is 23 and standard deviation is 4.9.The Z score 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.