Service Bills in Southern California The month to month service bills for a family in Riverside. California, were recorded for 12 successive months beginning in January 2006:

Month Sum (S) Month Sum (S) January 5266.63 July 5306.55 February 163.41 August 335.48 Walk 219.41 September 343.50 April 162.64 October 226.80 May 187.16 November 208.99 June 289.17 December 230.46

a. Compute the scope of the service bills for the year 2006. b. Ascertain the normal month to month service bill for the year 2006. c. Ascertain the standard deviation for the 2006 service bills.

Question 41

A bunch of n = 10 estimations comprises of the qualities 5, 2, 3. 6, 1, 2, 4, 5, 1, 3.

a. Utilize the reach guess to appraise the estimation of s for this set. (Clue: Utilize the table toward the finish of Area 2.5.) b. Utilize your adding machine to track down the genuine estimation of s. Is the genuine worth near your gauge to a limited extent a?

c. Draw a dotplot of this informational collection. Are the information moundshaped? d. Would you be able to utilize Tchebysheffs Hypothesis to portray this informational collection? Why or why not? e. Would you be able to utilize the Experimental Principle to depict this informational index? Why or why not? Reference:

TABLE 2.7 Divisor for the Reach Estimation of

Number of Anticipated that Ratio Measurements of Range should s 5 2.5 10 3 25 4

Question 42

Bundling Burger Meat The information recorded here are the loads (in pounds) of 27 bundles of ground hamburger in a general store meat show:

1.08 .99 .97 1.18 1.41 1.28 .83 1.06 1.14 1.38 .75 .96 1.08 .87 .89 .96 1.12 .93 1.24 .89 .98 1.14 .92 1.18 1.17

a. Build a stem and leaf plot or a general recurrence histogram to show the conveyance of loads. Is the dispersion generally hill formed?

b. Track down the mean and standard deviation of the informational index.

c. Discover the level of estimations in the spans ; x s, .Tc 2s, and Tc 3s.

d. How do the rates acquired partially c contrast and those given by the Exact Principle? Clarify. e. What number of the bundles weigh precisely 1 pound? Would you be able to think about any clarification for this?