Which of the following assertions are more accurate?
The following are measurements of the air velocity and evaporation coefficient of burning fuel droplets in an impulse engine. Fit a straight line to these data by the method of least squares, and use it to estimate the evaporation coefficient of a droplet when the air velocity is 190 cm/s correct to two decimal places.
The lapping process which is used to grind certain silicon wafers to the proper thickness is acceptable only if σ, the population standard deviation of the thickness of dice cut from the wafers, is at most 0.50 mil. Use the 0.05 level of significance to test the null hypothesis σ = 0.50 against the alternative hypothesis σ >0.50, if the thicknesses of 15 dice cut from such wafers have a standard deviation of 0.64 mil. Calculate the test statistic correct to two decimal places.
The following are the numbers of minutes it took 10 mechanics to assemble a piece of machinery in the morning, x, and in the late afternoon, y. Calculate r correct to three decimal places.
Вставне слово вжито в реченні, позначеному
Складне речення з підрядним причини позначено
Синтаксичну роль підмета виконує слово
Пунктуаційну помилку допущено в реченні, позначеному
Зміст первісного тексту буде відновлено, якщо речення розташувати в послідовності, запропонованій у рядку