At the time she was hired as a server at the Grumney Family Restaurant, Beth Brigden was told, “You can average $84 a day in tips.” Assume the population of daily tips is normally distributed with a standard deviation of $3.51. Over the first 46 days she was employed at the restaurant, the mean daily amount of her tips was $86.54. At the 0.10 significance level, can Ms. Brigden conclude that her daily tips average more than $84? a. State the null hypothesis and the alternate hypothesis.

multiple choice 1
H0: μ ≥ 84; H1: μ < 84
H0: μ >84; H1: μ = 84
H0: μ ≤ 84; H1: μ > 84
H0: μ = 84; H1: μ ≠ 84

b. State the decision rule.

multiple choice 2
Reject H0 if z > 1.28
Reject H1 if z < 1.28
Reject H1 if z > 1.28
Reject H0 if z < 1.28

c. Compute the value of the test statistic. (Round your answer to 2 decimal places.)

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1) the stages a new product goes through from beginning to end, i.e., the stages that a product passes through from introduction through growth, maturity, and decline. 2) the time from initial research and development to the time at which sales and support of the product to customers are withdrawn. 3) the period of time during which a product can be produced and marketed profitably.

                                          hope it

i have economics during second block which is easy to me. anyways, i think b.

answer: b. false

the staff is a set of five horizontal lines and four spaces which represent a different musical pitch. the lines and the spaces are numbered from bottom to top, the bottom line is the first line and the fifth line is the line on the top. the notes on the top of the staff (fifth line) have a higher pitch than a note at the bottom of the staff.