Confidence interval for the mean amount of money

Assignment Help Basic Statistics

Reference no: EM1318368

A restaurant owner believed that customer spending was below normal at tables manned by one of the waiters. The owner sampled 36 checks from the waiter's tables and got the following amounts (rounded to the nearest dollar):

47	46	56	70	52	58	48	57	49	61	52	40
60	22	74	59	60	30	61	44	62	41	53	57
50	52	57	59	69	51	58	56	44	36	47	51

Note that Σx = 1889 and Σx² = 103,027.

(a) Find a 95% confidence interval for the mean amount of money µ spent at the waiter's tables.

(b) Does it appear that the mean amount spent at the waiter's tables is smaller than the restaurant average of $55?

Reference no: EM1318368

Questions Cloud

Computing t-test critical value if variances are equal : How many degrees of freedom must researcher use in her t-test critical value supposing that variances are equal?

Create histograms for both frequencies : Evaluate your histograms for any outliers in your data. Based on your evaluation of outliers, you may trim no more than 1% of the data contained in the data set. This must be done symmetrically (i.e., trimming no more than 0.5% off the top and 0.5..

Competitive environment of baldwin company : Buzz is a product of the Baldwin Company which is primarily in Nano segment, but is also sold in another segment. Baldwin starts to generate their sales forecast by supposing all policies (R&D, Marketing, and Production) for all competitors are equ..

Utilitarian and libertarian : Explain the differences between the two approaches: Utilitarian and Libertarian? one should understand some points that might lead to confusion and misapplication”. Explain and comments on three points only.

Confidence interval for the mean amount of money : Find a 95% confidence interval for the mean amount of money µ spent at the waiter's tables.

Solve the quadratic equations : Solve the quadratic equation

Modifying the label properties : Perform some of the changes, the WebTime example to consists of drop-down lists that enable the user to alter such Label properties as the BackColor, ForeColor and Font-Size.

Sketch a graph of the given function : Sketch a graph of the given function C(h) - Where is the vertical asymptote? Does it play a role in this context?

Traditional-contemporary and emerging leadership theories : Examine traditional, contemporary, and emerging leadership theories and interpersonal forms of power. Create a profile of the ideal leader for the company you researched in which you describe the most appropriate leadership characteristics in term..

User Account

All Pages