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A Motor Dealer Is Conducting A Study To Determine The Proportion Of Car Owners . Statistics Mcq

What are some things that happen only in India?

In India, sometimes places such as restaurants, theme parks, trains, buses, movie theaters, etc. will keep a special price for kids below a certain age to attract more customers. The board usually looks something like this:Notice how it says age 12 and under.In June, my relatives were going to a water park with their 7 year old daughter and 14 year old son. They knew that the adult fares were different, and that children aged 5 and below would be given admission at an almost negligible price.However, things did not go as expected for them…Ticketer: Would you like to buy half day or full day passes?Parents: Full day passesTicketer: How many of you are there?Parents: Three adults and one child.Ticketer: What is the age of the little girl?Parents: Oh she just turned five last week, so we’re celebrating her birthday here!Ticketer: Oh! Happy bir-Daughter (very loudly and angrily): But mumma, I’m 7 years old na! And it wasn’t my birthday last week, it was Bhaiya’s (big brother’s). How can you forget! My birthday is in November not June!……..…….Parents: Umm… I think we will get sick if we go in the water park on this cold day. His exams are also coming so we should not take the chance…*Parents scold the girl in the parking lot*Parents faking the age of a child to avoid paying more money is the most Indian thing ever.

A motor dealer is conducting a study to determine the proportion of car owners... (statistics mcq)?

A motor dealer is conducting a study to determine the proportion of car owners who are considering
the purchase of a new car within the next year. The population proportion is believed to be 0:15: In
a sample of 200 car owners 40 said that they are considering the purchase of a new car.
We want to calculate a 98% confidence interval for pi.
Which one of the following statements is incorrect?

1. Sample proportion is equal to 0.2.
2. The standard error of the proportion is 0.0283
3. The appropriate Z–value is 1.645
4. The 99% confidence interval is (0.1270; 0.2730)
5. Since 0:15 is in the interval, we cannot reject the belief that pi= 0.15

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