A researcher is interested in finding a 95% confidence interval for the mean number minutes students are concentrating on their professor during a one hour statistics lecture. The study included 96 students who averaged 42.7 minutes concentrating on their professor during the hour lecture. The standard deviation was 10.2 minutes. Round answers to 3 decimal places where possible. a. To compute the confidence interval use a ? O distribution. b. With 95% confidence the population mean minutes of concentration is between and minutes. c. If many groups of 96 randomly selected members are studied, then a different confidence interval would be produced from each group. About percent of these confidence

Q: 国 7.

A: Solve for a

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A:

Q: -7.4v+2.4(-7.1v+-10)+6.7

A: simplified value is -24.44 v - 17.3

Q: 4root2*4root2

A:

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A: As this is a multiple subpart question according to the Bartleby Answering rule, only first three…

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A: Cycle is defined as a path that start and end at the same vertex.

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A: Given       5  2 3 − 4 4 8¯      1  5 7 5

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A:

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A:

Q: N 11 9

A: Here given that N/9=11

Cylinders

A cylinder is a three-dimensional solid shape with two parallel and congruent circular bases, joined by a curved surface at a fixed distance. A cylinder has an infinite curvilinear surface.

Cones

A cone is a three-dimensional solid shape having a flat base and a pointed edge at the top. The flat base of the cone tapers smoothly to form the pointed edge known as the apex. The flat base of the cone can either be circular or elliptical. A cone is drawn by joining the apex to all points on the base, using segments, lines, or half-lines, provided that the apex and the base both are in different planes.