Can someone please help The supply and demand schedule for backpacks is determined as
follows
Price Quantity Demanded Quantity Supplied
$25
1.600
1.200
$30
1.400
1.400
$35
1.200
1.600
$40
1.000
1.800
1. Graph the supply and demand curves (label property)
Price
3696
his su tavim
Query
2. Where is the equilibrium
3. If they are sold for $25, what is the shortage or surplus

A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95