A humane society claims that less than 69% of households in a certain country own a pet. In a random sample of 500 households in that country, 335 say they own a pet. At a = 0.10, is there enough evidence to support the society's claim? Complete parts (a) through (c) below. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) A. Less than 69 % of households in the country own a pet, O B. More than % of households in the country own a pet. OC. % of households in the country own a pet. OD. The percentage households in the country that own a pet is not %. Let p be the population proportion of successes, where a success is a household in the country that owns a pet. State H, and H. Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) OA. Ho: p# O B. Ho: ps OC. Ho: p> Ha:p= H:p> H:ps OD. Ho: p= OE. Ho: p< F. Ho: p2 .69 H p* Hg: p2 H:p< .69 (b) Use technology to find the P-value. Identify the standardized test statistic. (Round to two decimal places as needed.) Enter your answer in the answer box and then click Check Answer. parts remaining Clear All Check Answer
Addition Rule of Probability
It simply refers to the likelihood of an event taking place whenever the occurrence of an event is uncertain. The probability of a single event can be calculated by dividing the number of successful trials of that event by the total number of trials.
Expected Value
When a large number of trials are performed for any random variable ‘X’, the predicted result is most likely the mean of all the outcomes for the random variable and it is known as expected value also known as expectation. The expected value, also known as the expectation, is denoted by: E(X).
Probability Distributions
Understanding probability is necessary to know the probability distributions. In statistics, probability is how the uncertainty of an event is measured. This event can be anything. The most common examples include tossing a coin, rolling a die, or choosing a card. Each of these events has multiple possibilities. Every such possibility is measured with the help of probability. To be more precise, the probability is used for calculating the occurrence of events that may or may not happen. Probability does not give sure results. Unless the probability of any event is 1, the different outcomes may or may not happen in real life, regardless of how less or how more their probability is.
Basic Probability
The simple definition of probability it is a chance of the occurrence of an event. It is defined in numerical form and the probability value is between 0 to 1. The probability value 0 indicates that there is no chance of that event occurring and the probability value 1 indicates that the event will occur. Sum of the probability value must be 1. The probability value is never a negative number. If it happens, then recheck the calculation.
NEED HELP PLEASE! Identify the standardized t test statistic rounded to 2 decimal places, and decide whether to reject or fail to reject!!!!
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