Mathematics, 05.08.2019 05:10, weeblordd
The average daily volume of a computer stock in 2011 was muequals35.1 million shares, according to a reliable source. a stock analyst believes that the stock volume in 2014 is different from the 2011 level. based on a random sample of 30 trading days in 2014, he finds the sample mean to be 28.7 million shares, with a standard deviation of sequals13.7 million shares. test the hypotheses by constructing a 95% confidence interval. complete parts (a) through (c) below.
Answers: 1
Mathematics, 21.06.2019 19:20, girlydiy17
Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.
Answers: 3
Mathematics, 21.06.2019 20:30, marahkotelman
Find the nonpermissible replacement for binthis expression. b2/5b +5
Answers: 1
Mathematics, 21.06.2019 21:00, makayla10119
When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years
Answers: 1
Mathematics, 21.06.2019 22:00, nijanicole164
Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.
Answers: 2
The average daily volume of a computer stock in 2011 was muequals35.1 million shares, according to a...
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