The mean life of a certain bulb is 1000 hours and its standard deviation is 100 hours. A new brand of bulb has been introduced to the market. A sample of size n bulbs of the new brand reveals a sample mean of 1010 and the standard deviation is still 100 hours. What is the minimum n that would allow you to reject the hypothesis that the mean life of the new brand of bulb is 1000 at the 5% level? 180 300 205 400 200

Q: V-539 7. V11

A: To Determine:  Simplify

Q: 9w2=12w+5

A:

Q: k2-35=2k

A:

Q: 5+250

A:

Q: 4y-12=0

A: 4y = 12 y = 3

Q: 14 +2

A: Adding Fractions Step 1: Make sure the bottom numbers (the denominators) are the same. Step 2: Add…

Q: -12+(4• 3) (-) I 2-14 - 3)ENTER

A:

Q: Todt 5(-37+4)

A: Given,   ∫  -3t+410dt

Q: 1 +1

A: Given  1+1=

Q: 3b-12 = 30

A:

Q: -3w+5=23

A:

Q: +100 3

A: Our objective is to find the solution of the above expression.

Q: 28+76

A:

Q: (-12)+7

A: To simplify any expression involving numbers we need to use the BODMAS rule which specifies the…

Q: 16+29

A: Given :16+29

Q: -4d = -64

A: Given  -4d=-64

Q: 12

A: Explanation and solutions is given below....

Q: 7k = 91

A: We will find the value of k in the following step.

Q: 6+197

A: Given,          6+197

Q: Answer 2

A:

Q: C 15x8 226

A: Step 1: In the given figure, AB is a chord and CD is the tangent to the circle Measure of arc…

Q: Find

A: We know that,                         ∫1xdx=lnx+ c We need to find  ∫4xdx

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.