According to the Official Stage Magician Handbook, magic rábbit weight (Ibs.) is normally distributed with u = 6.2 and o = 1.5. Consider obtaining a random sample of 337 magic rabbits. Would it be unusual for the sample mean to be at least 6.5? Why or why not?

Suppose the manager agrees to pay each employee a$50bonus if they meet a certain goal. On a typical Saturday, the oil-change facility will perform 35 oil changes between 10 A.M. and 12 P.M. Treating this as a random sample, at what mean oil-change fime would there be a10%chance of being at or below? This will be the goal established by the manager. There would be a10%chance of being at or below minutes.

Cloud seeding has been studied for many decades as a weather modification procedure.  The rainfall in acre-feet from 20 clouds that were selected at random and seeded with silver nitrate follows:  18.0, 30.7, 19.8, 27.1, 22.3, 18.8, 31.8, 23.4, 21.2, 27.9, 31.9, 27.1, 25.0, 24.7, 26.9, 21.8, 29.2, 34.8, 26.7, and 31.6.  There is a claim that mean rainfall from seeded clouds exceeds 25 acre-feet.  The P-value for the test H0: µ = 25 versus H1: µ > 25 is closest to:

please do the full problem as it is part of just one!!! please and thx.

Use the three-read strategy to understand the following exercise from a statistics textbook, and then proceed to complete the exercise. A popular urban legend is that more babies than usual are born during certain phases of the lunar cycle, especially near the full moon. Suppose that a certain paper classified births according to the lunar cycle. Data for a sample of randomly selected births, consistent with summary quantities in the paper, are given in the accompanying table. Lunar Phase Numberof Days Numberof Births New Moon 24 7,670 Waxing Crescent 152 48,442 First Quarter 24 7,589 Waxing Gibbous 149 47,814 Full Moon 24 7,711 Waning Gibbous 150 47,595 Last Quarter 24 7,733 Waning Crescent 152 48,240 Calculate the value of the  Χ2  goodness-of-fit test statistic that could be used to determine if the distribution of number of births in each lunar phase is what would be expected based on the number of days in each phase. Use the value of the test statistic to…

A statistical test is conducted to see if there is evidence that the proportion of US citizens who can name the capital city of Mexico is less than 0.6. Use the following possible sample results: Sample A: 19 successes out of 40 Sample B: 22 successes out of 40 Sample C: 24 successes out of 40 Sample D: 26 successes out of 40 State which of the possible sample results provides the most significant evidence for the claim. Sample B Sample D Sample C Sample A

The following sample was obtained from the population. 13,7,6,12,0,4 a) Compute the sample mean.

a. The symbol for the random variable involved in this problem is ? v b. The wording for the random variable in context is as follows: Select an answer c. The symbol for the parameter involved in this problem is ? v d. The wording for the parameter in context is as follows: Select an answer

ch 11 end. 5 : The XYZ Corporation is interested in possible differences in days worked by salaried employees in three departments in the financial area. A survey of 23 randomly chosen employees reveals the data shown below. Because of the casual sampling methodology in this survey, the sample sizes are unequal. Research question: Are the mean annual attendance rates the same for employees in these three departments?

6% of all statistics classes require a statistical calculator and 25% require the use of a computer that has statistical software. Of the classes that require a statistical calculator, 13% also require the use of a computer. If a statistics course is selected at random find: (round to 4 decimal places where possible) a.  P(Statistical Calculator) = Correct b. P(Statistical Software) = Correct c. P(Require a Statistical Calculator and Statistical Software) = Incorrect d. P(Require a Statistical Calculator GIVEN Require Statistical Software) =