Recent content by schapman22

yes sorry I meant .05 not .005

Okay my table has Z.005=1.645 so I would use -1.645 for my critical value I believe? and the final part of this question which I am unsure about it is I need the p value which I know is the probability of getting the sample results.

Okay, I got that the test statistic is -1.5 by doing Z=(.023-.04)/sqrt(.04*.96/300) is this correct? And how would I find the critical value at a .05 level of significance? By the way thank you so much for all the help.

H1: p < .04?

would it be H1: p ≠ .04?

Homework Statement A manufacturing company produces water filters for home refrigerators. The process has typically produced about 4% defective. A recently designed experiment has led to changing the seal to reduce defects. With the process running using the new seal, a random sample of 300...

Homework Statement The time to failure for a certain light bulb in constant failure rate mode has a mean time to failure of 5000 hours. What is the probability that a randomly chosen light bulb is still burning after 10,000 hours? Give answer to 4 decimals. If 5 light bulbs are...

for 10C2 I'm geting 45, if i multiply 45*.2 I get 9, doesn't my answer have to be between 0 and 1?

My only question is for the first one you said to multiply .2* 2C10, however when i try to do 2C10 i get 0, or an error

Thank you so much, that was very helpful and cleared up some things.

Homework Statement There are 100 light bulbs in a box. 20 are 40 watt, the rest are 60 watt. If we randomly choose 10 bulbs, what is the probability that there will be exactly 2 40-watt bulbs? What is the probability that in a random sample of 10 bulbs there will be at least 1...

Cool I got it working now. Thanks for your help!

Sorry just realized that these are the ascii values of the input. But I am unsure how to get it to recognize the numerical value and not the ascii value.

The values I'm getting back I can't make sense of. If I only enter 0 I get 48. If I enter any other single number I get 48+n. When I use an operator the numbers get even stranger.

Changed the input to keyboard.nextLine(). But I am still getting wrong answers.