what is the value of 0.495 from the z-table?

Q: Using a cutoff of 0.05, is it unusual for an asthma patient to be 85 years old or older?

A: It is given that Total = 409743 Number of asthma patient 85 and up = 16768

Q: What is the value of d?

A:

Q: t does a z-score of -3.8 mean

A: A z-score is known as the standard score that determines how much the data point deviates from the…

Q: What is the percentage of scores that lie between a z score of -2 and a z score of 1?

A:

Q: How to interpret the result according to the table below?

A: # option (NS) correct

Q: A friend tells you that her savings account doubled in 9 years. Use the Rule of 72 to estimate what…

A: Given: Savings account get doubled in 9 years. Rule 72:  An amount will double when the product of…

Q: The z value tells us the number of ____________ that a value of x is from the mean

A: The z value tells us the number of Standard Deviations that a value of x is from the mean

Q: What is the value of a?

A: Given expression: a+x5 Also, given that co-efficient of x2 is 640. We need to find the value of a.

Q: The mean weekly com SD $100. What is the prc a. between $ 1000 a less than S 790? b.

A: The mean given is μ=$1000. The standard deviation is σ=$100. a. The probability of selecting a…

Q: Help me figure out what is a p-value?

A: In this case, we need to define the p-value.

Q: At the 0.01 level of significance, determine whether die is true (or unifor

A: Test is that whether die is true. It is given that Level of significance = 0.01 Number of times die…

Q: What is the value of A?

A:

Q: . What is the p-value?

A: here given  Sample mean  = 24 mph  Sample standard deviation  =  2.2 mph  Sample size  = 14  here…

Q: find the value between z score -2.9 and 1.5287

A: To find: Find the value between z score -2.9 and 1.5287

Q: What is the Z-score for an X value of 10? What is the Z-score for a Y value of 8?

A: Given Information: X Y 3 8 6 2 7 2 14 2 10 6   Z-score is a measure which indicates…

Q: What is p value ?

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

Q: Waht sould we do with a large P-value?

A: The P-value is the probability we get the value of the test statistic, or something "more extreme"…

Q: The absolute value for the difference between the two ladies z-score is

A: Let , X→N(μ=15.7 , σ=7.43) Since , the Rena's score on the exam is 9 and Sara's score was 25. We…

Q: 14. Estimate y; from the following data : 81 and explain why the value obtained is different from…

A: Given that : X and yx  values are given here by using these value we find missing value of yx  at x…

Q: What is needed to find a p value?

A: In hypothesis test we define the null hypothesis which is tested for possible rejection under the…

Q: Find the z-score that cuts off 40% in the tail on the left

A: Our aim is to find the find the z-score that cuts off 40% in the tail on the left

Q: What is the forecast for Y101 given the data?

A: Here given equation and given value of Y

Q: 2. Explain the steps of finding the IQR.

A: 2) The steps to finding the value of IQR is, Step 1: First arrange the data in ascending order Step…

Q: Find the Z-score if X = 23, 17, o = 2.5 Write the Z-score rounded to 2 decimal places.

A: Given X=23 Mu= 17 σ=2.5

Q: Look at the data below. 2 337 11 11 16 What is the interquartile range of the data? 07 0 8 o 11 o 14

A:

Q: A laptop manufacturer claims that the mean life of the battery for a certain model of laptop is more…

A: Claim: the mean life of the battery for a certain model of laptop is more than 5 hours.

Q: What is the P value?

A: We have given that  p0=39/(32+39)=0.5493 α=0.05

Q: Find the z-score z_0.025

A: The random variable z represents the standard normal distribution with parameters . The Excel…

Q: How would you interpret a z score of ‐3.0?

A: To finde z score we need mean (mu) and standard deviation (sigma) of the sample. We Calculate z…

Q: What is mZx?

A:

Q: A student working on his research found an R-squared value of .95. What does this value indicate?

A: Here given value of R2 = 0.95 Correlation of determination suggest that 95% of data fitted in…

Q: The trunk diameter, in centimeters, of a certain variety of pine tree is represented by X~N(150,…

A: We have to find out the z-score for a tree with a diameter of 170 centimeter..

Q: What is the value of ΣX2 for the scores 2, 4, and 5?

A: The scores are given as 2, 4, and 5.

Q: researchers calculated for their study that the mean difference () = 5.65 and the SE of the Mean…

A: Solution: From the given information, the mean difference is 5.65 and the SE of the mean difference…

Q: What’s the indicated value of 20!?

A: 20! =?

Q: At 95% level of confidence the Z value is 2.575?

A:

Q: What's the p-value?

A: In this case, we need to define the p-value.

Q: What is p value

A: From the given information, the test statistic value is 13.3289.

Q: The median height of a student at a high school is 5' 9". Which of the following is a good…

A: Median: Median divides the observations into two equal parts. It represents the middle value for a…

Q: What is the measure of ¿LMQ?

A: Solution of the problem as follows

Q: What is the p value ?

A: Note: As per the requirement solving  From the available information, The observed frequency for the…

Q: what is the mean when pi= 0.25 and n=40?

A: Solution: From the given information, pi=0.25 and n=40.

Q: At 4PM, the total snowfall is 2 centimeters. At 7PM, the total snowfall is 12 centimeters. What is…

A:

Q: Explain what it means if the z-score of an exam score is -1.2.

A: The z-score denotes the number of standard deviations from the mean.

Q: What is the measure of ∠x in this diagram?

A:

Q: What is the relationship between R sqare and p-value?

A: Relationship between R square and p-value

Q: What is the formula of a mean

A: we have to writte the fomula of a mean

Q: The table below gives the amount of time students in a class studied for a test and their test…

A: Given information: The data represents the values of the independent variable X = Hours studied and…

Q: Why are standard z values so important?

A: The z-score is standard score.

Q: Find the z score for test scores of 70 _____ and 90 ______.

A: The z-score of a sample data is Here, mean is 70.3 and standard deviation is 13.5.

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.