2. Your company has a contract to perform preventive maintenance on thousands of air- conditioners in a large city. Based on service records from previous years, the time that a technician spends servicing a unit averages one hour with a standard deviation of one hour. In the coming week, your company will service a simple random sample of 70 units in the city. You plan to budget an average of 1.1 hours per technician to complete the work. Will this be enough time? Provide probabilities and interpret.

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A: Given that  Sample size n =50 Sample mean=32 Standard deviation =6.5

Q: P(male, or federal aid)

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A: The null and alternative hypotheses are: H0:σ=9.48 H1:σ&lt;9.48

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A: We have given that, 5)  (a) 5.4%  (b ) 3% We we will find the z - score?  Note: According to…

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A: given data n = 31σ2 = 15∴σ = 15 = 3.873x¯ = 5695% ci for μ = ?

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A: given data, binomial distribution, p=0.107q=0.893n=12x= no. of student  drop out

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A: Here we have given the information, MSwithin = 6.46  MSbetween = 12.86 We have to find the F value.

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A:

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A: Given that n=310 and X=248. Here we want to construct a 90% confidence interval.

Q: 8. Snacking on Goldfish Carly and Maysem plan to be pre-school teachers after they graduate from…

A: 317 330 325 323 332 337 324 342 330 349 335 333 x¯ = 331.4166667

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