Answer:
a
The 95% confidence interval is
b
The sample proportion is
c
The critical value is
d
The standard error is
Step-by-step explanation:
From the question we are told that
The sample size is n = 200
The number of defective is k = 18
The null hypothesis is
The alternative hypothesis is
Generally the sample proportion is mathematically evaluated as
Given that the confidence level is 95% then the level of significance is mathematically evaluated as
Next we obtain the critical value of from the normal distribution table, the value is
Generally the standard of error is mathematically represented as
substituting values
The margin of error is
=>
=>
The 95% confidence interval is mathematically represented as
=>
=>
Answer:
The curve starts low to the left and goes high to the right
Step-by-step explanation:
Answer:
12 dollars
Step-by-step explanation:
100%-15%=85%
68÷85%=80
The original price was 80 dollars.
Answer:
a. The pattern is that each month, the number of trivia questions increases by 11.
b. Month 4 will have 44 questions, month 5 will have 52 questions, and month 6 will have 63 questions.
c. 8, 19, 30, 44, 52, 63, ...
Month - Questions
1 - 8
2 - 19
3 - 30
4 - 44
5 - 52
6 - 63
(There's no great way to format a table here, so you'll have to use your imagination!)
Answer:
2 y=471
Step-by-step explanation: