Past experience indicates that the time required for high school seniors to complete a standardized test is a normal random variable with a mean of 35 minutes. If a random sample of 20 high school seniors took an average of 33 minutes to complete this test with a standard deviation of 4.3 minutes, test the hypothesis, at the 0.05 level of significance, that u = 35 %3D minutes against the alternative that u < 35 minutes.

Q: Question 12

A: Given: Value of the trading card = $155 (in 2009) Each year increases by = 4.8% = 0.048 To…

Q: Do dominant and subordinate individuals differ in the means of giggle spectral CV?

A: For Group : Dominant Individual Standard Deviation, s: 0.05410 Count, N: 9 Sum, Σx: 2.755…

Q: Question 26

A: We have given a graph which represent the derivative f' of some function f. we have to draw the…

Q: question 32

A: (32)   (a)   State the hypotheses. That is, the average activating temperature is at least 135 F.…

Q: Question 4 too please.

A:

Q: Question 7

A: 7) (a) The given parametric equations are  x=t+2 and y=t2-1 and t∈-3, 3. Sketch the graph of the…

Q: Question 5

A: From the provided information, Number of trials (n) = 100 Probability of getting tails (p) = 0.5

Q: Question 12

A: (12)(a) Given, f(x)=2x-6 such that f:ℝ→ℝThe function f(x) is a linear function. The f(x) is defined…

Q: Find ay Sin(x+y)=Cos X t cos y

A:

Q: Question 12

A: We are given the following shapes. For (a), We need to find the volume of the box as a function of…

Q: Question 20

A: Given Data :  General form of the sequence an=2(an-1)+1, a1=4 To Find : The first four terms of the…

Q: do question 7

A:

Q: Question 54

A:

Q: Kinda lost

A: here the graph passes two times  through the x -axis  so there will be two roots

Q: Question 11

A:

Q: Question 52

A: Solve 52

Q: Question 55

A: Consider the sign chart given for the derivative Recall that the function is increasing when the…

Q: Question 7 B

A:

Q: a. Estimate the mean change in oxygen o consumption during feeding dives compared with nonfeeding…

A: Non-Feeding (X) Feeding (Y) D = Y -X (D-Dbar)^2 42.2 71 28.8 105.6784 51.7 77.3 25.6 181.7104…