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How do we know when to use pooled vs unpooled?? for hypothesis test

it means raised to for exam 2^3 means 2 raised raised to the power of 3, or you could also say 2 cubed

Can I please have some more help? For the following statement about a statistical survey, identify the following items (if possible). If you can’t tell, then say so – this often happens when we hear or read about a survey. A recent online poll conducted by an Australian newspaper of 1083...

Can I have help with this question please? 2.5 Weather forecasts are generally right, but not always. For a particular winter, the local forecast predicts rain for 35% of days and rain occurs on 38% of the days. For 25% of winter days, rain was forecast and rain does fall. Hint: Use a Venn...

Thanks 5uMath for helping me with 2.3 Can I please have help with questions 2.1 and 2.2? 2.1 For the following statement about a statistical survey, identify the following items (if possible). If you can’t tell, then say so – this often happens when we hear or read about a survey. A recent...

Can someone please reply?

Can I please have help with these questions? 2.1 For the following statement about a statistical survey, identify the following items (if possible). If you can’t tell, then say so – this often happens when we hear or read about a survey. A recent online poll conducted by an Australian newspaper...

So are you 100% sure that all the working out and answers of mine are correct? Thanks

Can someone please verify if my answers are correct for the below questions? People have one of four different blood types – O, A, B or AB. Suppose 49% of the population have blood type O, 38% have type A, 10% have type B and 3% have type AB. a) What is the probability that a randomly selected...

For one of my subjects which had an exam hurdle of 50% i got 68% overall but don't know what i got in the exam, and don't know my assignment grades either. If I got over 50% overall but failed the exam hurdle would my grade show up differently?

solve 2pi cos(((2pi x - 2pi))/(3) = 0 for 0<x<3 i'd first have to multiply the domain values by the coefficient of x, which is 2pi/3, and would I then need to subtract 2pi/3 form the domain values? Thanks

bumppppp

bump, can someone please answer my questions

bumppppppp

This question is for vce maths methods. The second derivative isn't part of the maths methods course. Would a gradient sign test work in this instance to find the value of x for maximum and the value of x for minimum?

y = 18x-6x^3 find the value of x for which y is a maximum and findthe maximum value of y. i derived the original expression and got 18-18x^2, set it equal to = and got x = -1 and x = 1. How do I know which of these values of x to substitute back into the original expression?

bumpppppppp can someone please answer

Hi, can I please have some help with the below questions? f(x) =sqrt(x+1), with a restricted domain of [0, infinity), h(x) = x^2+3, with a domain of R, to find the range of the composite function f(h(x)), the domain would be the domain of the inner function, h(x), which is R, but do we also need...

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bump, is anyone on this forum?