Mathematics, 23.06.2019 01:20 changav36832
The mean hourly wage for employees in goods-producing industries is $24.57 (bureau of labor statistics website, april 12, 2012). suppose we take a sample of employees from the manufacturing industry to see if the mean hourly wage differs from the reported mean of $24.57 for the goods-producing industries. state the null and alternative hypotheses we should use to test whether the population mean hourly wage in the manufacturing industry differs from the population mean hourly wage in the goods-producing industries. suppose a sample of 30 employees from the manufacturing industry showed a sample mean of $23.89 per hour. assume a population standard deviation of $2.40 per hour and compute the p-value. with as the level of significance, what is your conclusion? repeat the preceding hypothesis test using the critical value approach.
Answers: 3
Mathematics, 21.06.2019 17:30
If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 Γ 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)
Answers: 1
Mathematics, 21.06.2019 23:30
Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.
Answers: 1
Mathematics, 22.06.2019 00:00
The probability that a tutor will see 0, 1, 2, 3, or 4 students is given below determine the probability distribution's missing value.
Answers: 1
Mathematics, 22.06.2019 02:30
The price of a visit to the dentist is \$50$50. if the dentist fills any cavities, an additional charge of \$100$100 per cavity gets added to the bill. if the dentist finds nn cavities, what will the cost of the visit be?
Answers: 2
The mean hourly wage for employees in goods-producing industries is $24.57 (bureau of labor statisti...
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