Claim: A minority of adults would erase all of their personal information online if they could. A software firm survey of 523 randomly selected adults showed that 35% of them would erase all of their personal information online if they could. Complete parts (a) and (b) below. a. Express the original claim in symbolic form. Let the parameter represent the adults that would erase their personal information. (Type an integer or a decimal. Do not round.) b. Identify the null and alternative hypotheses. Ho: H;: (Type integers or decimals. Do not round.)

A classroom contains 30 distinct children and 50 books. Every child collects one book (and books may not be shared). Write down expressions for the number of different possible outcomes in each of the following cases: i. All books are distinct. ii. All books are identical. iii. 49 books are identical and 1 is different. iv. 48 books are distinct and different from the 2 final books which are identical. Which of your answers above is the largest?

All DERFs are ENAJs. One-third of all ENAJs are DERFs. Half of all SIVADs are ENAJs. One SIVAD is a DERF. Eight SIVADs are ENAJs. There are 90 ENAJs. Draw the Venn diagram. How many ENAJs are neither DERFs nor SIVADs?

A realtor uses a lock box to store the keys to a house that is for sale. The access code for the lock box consists of four digits. The first digit cannot be 3 and the last digit must be odd. How many different codes are available? (Note that 0 is considered an even number) The number of different codes available is (Type a whole number.) CHED

1). The table below gives the responses to 20 questions. Calculate the value of the appropriate used for the answer yes no yes yes  yes no no yes no no yes Yes no yes no yes no yes yes yes no

Tennis Instant Repay The Hewk-eye electronic system is used in tennis for displsying instant replay that showes whether a ball is in the bounds or out of the bounds. In the first @.S. Open that used Hawk-Eye system, players could challenge calla made by referees. The Hawk-Eye system was then used to confirm or overturn the referee's call. Players made 839 challenges, and 327 of those challenges were successful with the call overturened . use a 0.01 significance level to test the claim that the propotion of the challenges that are successful is greater than 1/3. what does the results suggest about the quality of the calls made by the referees?

The records of a computer retail store show that out of the 25 customers who purchased a desktop computer last month, 18 also purchased a service plan that extends the warranty for an extra year. Out of the 100 customers who purchased a notebook computer last month, 85 purchased the same service plan. Fill in the blanks below to make the most reasonable statement possible. Last month, customers of the store who purchased ▼(Choose one:desktop/notebook) computers were more likely to purchase the service plan. That is because only ___% did not purchase the service plan, whereas ___% of the customers who bought ▼(Choose one: desktop/notebook) computers did not purchase the service plan.

A minority of adults would erase all of their personal information online if they could. A software firm survey of 479 randomly selected adults showed that 42​% of them would erase all of their personal information online if they could. Complete parts​ (a) and​ (b) below. a. Express the original claim in symbolic form. Let the parameter represent the adults that would erase their personal information. ​(Type an integer or a decimal. Do not​ round.)   b. Identify the null and alternative hypotheses. ​(Type integers or decimals. Do not​ round.)

On the right is a contingency table for active Naval military​ personnel, cross-classified by marital status and pay grade. Complete parts​ (a) through​ (f) below.   c. How many are enlisted and have a civilian​ marriage? There are______that are enlisted and have a civilian marriage. d. How many are either enlisted or have a civilian​ marriage? There are______that are either enlisted or have a civilian marriage. e. How many are neither enlisted nor have a civilian​ marriage? There are ______that are neither enlisted nor have a civilian marriage. f. How many do not have a joint service​ marriage? There are______that do not have a joint service marriage.

Eyeglassomatic manufactures eyeglasses for different retailers. They test to see how many defective lenses they made in a time period. The folllowing table gives the type of defect and the number of lenses with that defect. Assume categories are mutually exclusive.