Mathematics, 25.07.2019 05:30 jackkie10
Acompany manufactures tennis balls. when its tennis balls are dropped onto a concrete surface from a height of 100 inches, the company wants the mean height the balls bounce upward to be 54.8 inches. this average is maintained by periodically testing random samples of 25 tennis balls. if the t-value falls between minust 0.95 and t 0.95, then the company will be satisfied that it is manufacturing acceptable tennis balls. a sample of 25 balls is randomly selected and tested. the mean bounce height of the sample is 56.9 inches and the standard deviation is 0.25 inch. assume the bounce heights are approximately normally distributed. is the company making acceptable tennis balls?
Answers: 1
Mathematics, 21.06.2019 16:00, sebastianapolo5
Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?
Answers: 2
Mathematics, 21.06.2019 16:40, lawrencebenoit7194
This question awards 100 ! i really don’t want to fail i will also mark you !
Answers: 2
Mathematics, 21.06.2019 17:30, leslcookie23
During a bike challenge riders have to collect various colored ribbons each 1/2 mile they collect a red ribbon each eighth mile they collect a green ribbon and each quarter mile they collect a blue ribbion wich colors of ribion will be collected at the 3/4 markrer
Answers: 3
Acompany manufactures tennis balls. when its tennis balls are dropped onto a concrete surface from a...
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