Question

In: Statistics and Probability

DATAfile: HongKongMeals You may need to use the appropriate appendix table or technology to answer this...

DATAfile: HongKongMeals

You may need to use the appropriate appendix table or technology to answer this question.

The mean cost of a meal for two in a midrange restaurant in City A is $44. How do prices for comparable meals in Hong Kong compare? The file HongKongMeals contains the costs for a sample of 42 recent meals for two in Hong Kong midrange restaurants.

22.78 33.89 22.77 18.04 23.29 35.28 42.38
36.88 38.55 41.68 25.73 34.19 31.75 25.24
26.32 19.57 36.57 32.97 36.83 30.17 37.29
25.37 24.71 28.79 32.83 43.00 35.23 34.76
33.06 27.73 31.89 38.47 39.42 40.72 43.92
36.51 45.25 33.51 29.17 30.54 26.74 37.93

(a)

With 95% confidence, what is the margin of error for the estimated mean cost in dollars for a mid-range meal for two in Hong Kong? (Round your answer to the nearest cent.)

$

(b)

What is the 95% confidence interval estimate of the population mean cost in dollars for a mid-range meal for two in Hong Kong? (Round your answers to the nearest cent.)

$  to $

(c)

How do prices for meals for two in mid-range restaurants in Hong Kong compare to prices for comparable meals in City A restaurants?

The mean cost for a mid-range meal for two in City A is  ---Select--- within higher than the upper limit of below the lower limit of the 95% confidence interval for comparable meals in Hong Kong. This suggests mean cost of comparable meals in Hong Kong is  ---Select--- less than possibly the same as greater than  in City A.

Solutions

Expert Solution


Related Solutions

DATAfile: TobaccoFires You may need to use the appropriate appendix table or technology to answer this...
DATAfile: TobaccoFires You may need to use the appropriate appendix table or technology to answer this question. The mean cost to repair the smoke and fire damage that results from home fires of all causes is $11,389.† How does the damage that results from home fires caused by careless use of tobacco compare? The DATAfile named TobaccoFires provides the cost to repair smoke and fire damage associated with a sample of 55 fires caused by careless use of tobacco products....
DATAfile: CorporateBonds You may need to use the appropriate appendix table or technology to answer this...
DATAfile: CorporateBonds You may need to use the appropriate appendix table or technology to answer this question. A sample containing years to maturity and yield for 40 corporate bonds are contained in the data file named CorporateBonds.† (Round your answers to four decimal places.) Company Ticker Years to Maturity Yield HSBC 12.00 4.079 GS 9.75 5.367 C 4.75 3.332 MS 9.25 5.798 C 9.75 4.414 TOTAL 5.00 2.069 MS 5.00 4.739 WFC 10.00 3.682 TOTAL 10.00 3.270 TOTAL 3.25 1.748...
You may need to use the appropriate appendix table or technology to answer this question. In...
You may need to use the appropriate appendix table or technology to answer this question. In the past, 19% of all homes with a stay-at-home parent had the father as the stay-at-home parent. An independent research firm has been charged with conducting a sample survey to obtain more current information. (a) What sample size is needed if the research firm's goal is to estimate the current proportion of homes with a stay-at-home parent in which the father is the stay-at-home...
You may need to use the appropriate appendix table or technology to answer this question. The...
You may need to use the appropriate appendix table or technology to answer this question. The following results are for independent random samples taken from two populations. Sample 1 Sample 2 n1 = 20 n2 = 30 x1 = 22.9 x2 = 20.1 s1 = 2.6 s2 = 4.6 (a) What is the point estimate of the difference between the two population means? (Use x1 − x2. ) (b) What is the degrees of freedom for the t distribution? (Round...
You may need to use the appropriate appendix table or technology to answer this question. A...
You may need to use the appropriate appendix table or technology to answer this question. A report states that adults 18- to 24- years-old send and receive 128 texts every day. Suppose we take a sample of 25- to 34- year-olds to see if their mean number of daily texts differs from the mean for 18- to 24- year-olds. (a) State the null and alternative hypotheses we should use to test whether the population mean daily number of texts for...
You may need to use the appropriate appendix table or technology to answer this question. The...
You may need to use the appropriate appendix table or technology to answer this question. The following results come from two independent random samples taken of two populations. Sample 1 Sample 2 n1 = 50 n2 = 35 x1 = 13.6 x2 = 11.6 σ1 = 2.5 σ2 = 3 Provide a 90% confidence interval for the difference between the two population means. (Use x1 − x2.Round your answers to two decimal places.) ( ) to ( ) Provide a...
You may need to use the appropriate appendix table or technology to answer this question. The...
You may need to use the appropriate appendix table or technology to answer this question. The increasing annual cost (including tuition, room, board, books, and fees) to attend college has been widely discussed (Time.com). The following random samples show the annual cost of attending private and public colleges. Data are in thousands of dollars. Private Colleges 53.8 44.2 45.0 32.3 45.0 31.6 46.8 37.8 49.5 43.0 Public Colleges 20.3 22.0 28.2 15.6 24.1 28.5 22.8 25.8 18.5 25.6 14.4 21.8...
You may need to use the appropriate appendix table or technology to answer this question. The...
You may need to use the appropriate appendix table or technology to answer this question. The following data are product weights for the same items produced on two different production lines. Line 1 Line 2 13.6 13.7 13.8 14.1 14.0 14.2 13.9 14.0 13.4 14.6 13.2 13.5 13.3 14.4 13.6 14.8 12.9 14.5 14.4 14.3 15.0 14.9 Test for a difference between the product weights for the two lines. Use α = 0.05. State the null and alternative hypotheses. H0:...
You may need to use the appropriate appendix table or technology to answer this question. A...
You may need to use the appropriate appendix table or technology to answer this question. A research center has conducted extensive research on social media usage. One finding was that 71% of adults aged 18 to 24 use Snapchat. Another finding was that 48% of those aged 18 to 24 use Twitter. Assume the sample size associated with both findings is 400. (a) Develop a 95% confidence interval for the proportion of adults aged 18 to 24 who use Snapchat....
You may need to use the appropriate appendix table or technology to answer this question. The...
You may need to use the appropriate appendix table or technology to answer this question. The following results come from two independent random samples taken of two populations. Sample 1 Sample 2 n1 = 50 n2 = 25 x1 = 13.6 x2 = 11.6 σ1 = 2.4 σ2 = 3 (a) What is the point estimate of the difference between the two population means? (Use x1 − x2.) (b) Provide a 90% confidence interval for the difference between the two...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT