What is the test statistic? (Round to two decimal places as needed.) What is the p-value? p-value= (Round to three decimal places as needed.) What is the proper conclusion? Ho. There is evidence to conclude that the population proportion is 0.62.

Q: Jessica wants to determine which letter appears the most often in her favorit Which measure should…

A: Note: Please repost 2nd question as i can answer only 1 question as per my policy.

Q: find the test value used to test the claim that the proportion of jellyfish stings at jones beach is…

A: Given, Sample size = 696 Sample proportion = 0.30   The null and alternative hypothesis is:

Q: Claim: Fewer than 91% of adults have a cell phone. In a reputable poll of 1084 adults, 86% said that…

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Q: how do you calculate the P-value without excel

A: From the given solution, we get z = -0.957    = -0.96       ( round upto 2 decimal places )…

Q: Only 12 men have walked on the moon.  The average time these men spent on the moon was 43.92 hours.…

A: Sample: A smaller group of individuals taken from the population is called the sample. Statistic: It…

Q: While estimating from a sample, you should always try to get a biased B,. Is this correct? O Yes O…

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Q: ibäi 15 The table below shows the number of employees within a small construction company classified…

A: The following data is given: Years of experience Frequency 5 - 10 8  11- 16 10  17 - 22 7…

Q: What are the correct hypotheses? (Select the correct symbols and use decimal values not…

A: Given: N= 325 X=134 As the claim is to find whether the proportion is different than 52%, so the…

Q: A teacher claims that over 11% of maths students are married. In the survey at the beginning of…

A: Answer: From the given data, Population proportion (P) = 11% = 0.11 Sample size (n) = 50 Sample…

Q: 5. Rank each football team by their mean scores. If you could join any of the three teams, which…

A: # we are entitled to solve one question at a time, please resubmit the other questions if you wish…

Q: Test whether patients getting Treatment 1 are more likely to survive, if 62 out of 82 getting…

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Q: Inferentiial Statistics deals with O Population Only Qualitative data O Only Quantitative data O…

A: The option one is correct i.e. Population.

Q: The sample mean of a dataset is 3.8 from 13 observations, calculate the sum of observations.

A: From the provided information, Mean of dataset (x̅) = 3.8 Number of observations (n) = 13

Q: ate Kobe was 6'6" (or 78 inches).  Suppose the average height of men is 5'9" (or 69") and SD is 3".…

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Q: How do you create a new scale as a mean score by creating a new variable that adds up all the scores…

A: Mean is generally represented as total sum of all observations divided by number of observations.…

Q: if the 90% Ci for the population mean is (-2. 58, 7.54) what is the sample mean О a.248 ОБ. 10.12 O…

A: Confidence interval is defined as the range that contains the value of a true population parameter.…

Q: could you explain more about how to get the answer?    Find the p-value of your sample statistic.

A: The number of months,The sample mean,   dogs per monthThe population standard deviation,  dogsThe…

Q: Are Republicans more likely than Democrats to display the American flag in front of their residence…

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Q: Are the data qualitative or quantitative? O A. Qualitative, because descriptive terms are used to…

A: Colour is a qualitative variable. Level of measurement will be nominal. So, correct option will be…

Q: What would s2 = 0 tell you about your sample? What would s2 = -25.397890175675 tell you?

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Q: ransgender e of first le was 6.7 years iation of 3.1. IS women and

A: Given Data : For Sample 1 x̄1 = 6.7 s1 = 3.6 n1 = 155 For Sample 2…

Q: why do we study or use 5 averages in statistics? Elaborate

A: The 5 types of averages we use in statistics are: 1- Arithmetic mean 2-Mode 3- Median 4-Root mean…

Q: What is p value ?

A: The​ P-value is the probability of observing difference in the sample statistic this high or higher…

Q: Do shoppers at the mall spend the same amount of money on average the day after Thanksgiving…

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Q: Explain the sample mean of the difference scores varies.

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Q: what is the range for the following set of scores: 64, 12, 27, 57, 32 ? enter your answer as a whole…

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Q: Consider the following statement. The proportion of all students enrolled at a particular university…

A: Given: The data shows that the proportion of all students that were enrolled at a particular…

Q: if the 90% C for the population mean is (-2.58, 7.54) what is the sample mean O a 248 Ob. 10.12…

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Q: P (mean or median) = P (mean) +P(median) – P (mean and median), to find the probability that a…

A: From the given information, The addition rule is, P(mean or median)=P(mean)+P(median)-P(mean and…

Q: what is the mean of 2.3, 4.6, 5.7, 11.8. Also should it be rounded? my solution 10.3  /2= 5.15

A: Answer:- Given data,  2.3, 4.6, 5.7, 11.8  Using formula,  Mean = Sum of the terms/Number of terms

Q: What is the average? 3 4 5 8   2   4   5   10

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Q: explain what is measured by the sign of a z -score and what is measured by its numerical

A: here use basic of standard normal random variable z -score

Q: A software company is interested in improving customer satisfaction rate from the 77% currently…

A: Solution: Given data p = 0.77 sample size (n) = 248 x = 202 Sample Proportion is given  by; (p̂) =…

Q: how do i calculate a z score or find the X-Value and determine if a score is usual or unusual

A: A z-score measures exactly how many standard deviations above or below the mean a data point is.

Q: You want to estimate the percentage of statistics students who get grades of C or better. How many…

A: Obtain the sample size. The formula of sample size is, Obtain the area of probability in the right…

Q: Find the population mean or sample mean as indicated. Sample: 20, 8, 3, 4, 25

A: Solution-: We have following data: 20,8,3,4,25 We find population mean or sample mean?

Q: When finding p value and critical value how do I learn how to read the table of a scores,  like how…

A: If we recall definition of p-value , it is the probability of obtaining observed or more extreme…

Q: When planning to sample a population, what can you do to improve the precision of the sample mean?

A: To Answer, What are the ways to improve the precision in a sample mean? Symbols used are Y =…

Q: Consider the sample data: 125, 115, 112, 127, 112, 105. What is the sample mean of the data?

A: Given data is ; sample data : 125 , 115 , 112 , 127 , 112 , 105 sample size ( n ) = 6 Definition of…

Q: How do I explain if the mean and median are different, comparing the tibia length before and after…

A: Mean is the average of all the data set and it is the measure of central tendency. It is calculated…

Q: Why we use here n= 30  Not n=45  And what is the meaning of n=45 in this question

A: In this context, the sample size for the data collected from drivers who have been stopped by an…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.