Hw7_skeleton

8.2

• 1. .44
• 2. sample proportion, X/N
• 3. False
• 4. False
• 5. When np(1-p) is greater than or equal to 10. Also when n is less than or equal to .05N
• 6. Standard deviation decreases. Standard deviation would decrease by factor of 2
• 7. Sampling distribution of P hat is normal with Mu of p hat being .4 and the standard deviation being .022
• 8. Sampling distribution of p hat is normal with Mu of p hat being .7 and standard deviation being .026
• 1. Sampling distribution is normal with a mu of p hat being .35 and a standard deviation of p hat being .015.

  2. .0040

  3. .0233

• 1. Sample distibution of p hat is normal with Mu of p hat being .42 and the standard deviation of p hat being .0129

  2. .010

  3. .061

• 1. The sampling distribution of p hat is normal with mu of p hat being .39 and the standard deviation being .0218

  2. .323

  3. .3203

  4. .0845