Mathematics, 26.11.2019 06:31 rhill5
Suppose a food scientist wants to determine whether two experimental preservatives result in different mean shelf lives for bananas. he treats a simple random sample of 1515 bananas with one of the preservatives. he then collects another simple random sample of 2020 bananas and treats them with the other preservative. as the bananas age, the food scientist records the shelf life of all bananas in both samples. the food scientist does not know the population standard deviations. what test should the food scientist run in order to determine if the two experimental preservatives result in different mean shelf lives for bananas? the food scientist should use aa. normal confidence interval for the difference of two means. b. twoâtailed, twoâsample ð¡tâtest. c. leftâtailed, twoâsample ð¡tâtest. d. matchedâpairs ð¡tâtest. e. rightâtailed, twoâsample zzâtest.
Answers: 2
Mathematics, 21.06.2019 13:30
12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain
Answers: 2
Mathematics, 21.06.2019 13:30
Given a(-12,5) and b(12,29) find the point that divides the line segment ab three-eighths of the way from a to b
Answers: 1
Mathematics, 21.06.2019 23:30
Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.
Answers: 1
Mathematics, 22.06.2019 01:30
What is the remainder when 3x^2-x-10 is divided by x-1 -6,-7,-8, or -9
Answers: 1
Suppose a food scientist wants to determine whether two experimental preservatives result in differe...
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