Use the digits of 1,9,2,3 to come up with all the numbers 98 and 95 Question solved general 5 months ago 2492
QUESTION l. An investigation has been carried out in a region to know the perception of "citizen insecurity" of its inhabitants. 1,270 people in the region were interviewed, of which 27.1% responded that it was a "serious" problem. Knowing that this opinion was previously held by 25.3% of the population of that region, we want to know if said opinion has changed significantly for a confidence level of 97.2%. Taking this statement into account, the following is requested: a) Critical value of the contrast statistic. b) Solve the hypothesis test and indicate what conclusion we can reach. c) P-value of contrast. Question solved general 5 months ago 1172
Since one of the three integers whose product is (-60) is (+4), write the values that two integers can take. Question solved general 5 months ago 2664
A normally distributed population has a mean of 118 with a standard deviation of 18. What score separates the lowest 72% of the distribution from the rest of the scores? Question solved general 5 months ago 708
calculate the following vector based on its base vectors a= -18i,26j Question solved general 5 months ago 947
10.Silvana must knit a blanket in 9 days. Knitting 8 hours a day, at the end of the fifth day, only 2/5 of the blanket was done. To be able to finish on time, how many hours will Silvana have to knit per day? Question solved general 5 months ago 2222
One contestant on a game show has 1,500 points and another contestant has -250 points. What is the difference between the scores of the contestants? Question solved general 5 months ago 2573
The sum of an infinite geometric series is 13,5 The sum of the same series, calculated from the third term is 1,5. Q. Calculate r if r>0. Question solved general 5 months ago 2432
A car tire can rotate at a frequency of 3000 revolutions per minute. Given that a typical tire radius is 0.5 m, what is the centripetal acceleration of the tire? Question solved general 5 months ago 314
A circular park has a diameter of 150ft. A circular fence is to be placed on the edge of this park. Calculate the cost of fencing this park if the rate charged is $7 per foot. Use π = 3.14. Question solved general 5 months ago 921
5 squirrels were found to have an average weight of 9.3 ounces with a sample standard deviation is 1.1. Find the 95% confidence interval of the true mean weight Question solved general 5 months ago 2467