"Trydint" bubble-gum company claims that 7 out of 10 people prefer their gum to "Eklypse". Test their claim at the 99 confidence level. The null and alternative hypothesis in symbols would be:

• H0:0.7H0:0.7 H1:<0.7H1:<0.7
• H0:=0.7H0:=0.7 H1:0.7H1:0.7
• H0:0.7H0:0.7 H1:>0.7H1:>0.7
• H0:p0.7H0:p0.7 H1:p<0.7H1:p<0.7
• H0:p0.7H0:p0.7 H1:p>0.7H1:p>0.7
• H0:p=0.7H0:p=0.7 H1:p0.7H1:p0.7

The null hypothesis in words would be:

• The proportion of people in a sample that prefer Trydint gum is not 0.7
• The average of people that prefer Trydint gum is not 0.7.
• The proportion of all people that prefer Trydint gum is greater than 0.7.
• The proportion of people in a sample that prefers Trydint gum is 0.7.
• The proportion of all people that prefer Trydint gum is 0.7
• The proportion of all people that prefer Trydint gum is less than 0.7.
• The average of people that prefer Trydint gum is 0.7.

Based on a sample of 200 people, 138 said they prefer "Trydint" gum to "Eklypse". The point estimate is: Correct (to 3 decimals) The 99 % confidence interval is: to (to 3 decimals) Based on this we:

• Reject the null hypothesis
• Fail to reject the null hypothesis