subject
Mathematics, 10.06.2020 16:57 korban23

Un fabricante afirma que la resistencia promedio a la tensidn ios tornillos A exceden la de los tornillos B al menos en 12 kilogramos. Para probar esta afirmación, se examinan 50 piezas de cada tipo de tornillo bajo çondiciones similares. El tornillo tipo Á tuvo una resistencia promedio a la tensión de 86.7 kilogramos con una desviación estándar de 6.28 kilogramos, mientras para el tornillo tipo B, estos mismos parámetros fueron de 77.8 kilogramos y 5,6/ ki19gr?mÓsl 'respectivamente. Compruebe la afirmación del fabricante utilizando un nivel de significancia de 0.05.

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 20:30
There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?
Answers: 3
question
Mathematics, 21.06.2019 23:00
If mary had 320 toy cars and she gave her friend 50 cars and then she gave her brother 72 more cars how much toy cars would mary have left ● explain with proper details
Answers: 1
question
Mathematics, 21.06.2019 23:50
Quick graph the line for y+2=32(x+4) on the coordinate plane. does anyone know the cordinates will mark brainliest.
Answers: 1
question
Mathematics, 22.06.2019 01:00
Arestaurant offers delivery for their pizzas. the total cost the customer pays is the price of the pizzas, plus a delivery fee. one customer pays $23 to have 2 pizzas delivered. another customer pays $59 for 6 pizzas. how many pizzas are delivered to a customer who pays $86?
Answers: 1
You know the right answer?
Un fabricante afirma que la resistencia promedio a la tensidn ios tornillos A exceden la de los torn...
Questions