Calculate the p-value for the following conditions and determine whether or not to reject the null hypothesis.a) one-tail test, z = 1.10, and a = 0.05b) one-tail test, z; = -2.75, and a = 0.02c) two-tail test, z = 2.80, and x = 0.05d) two-tail test, z = -1.54, and α = 0.10Click here to view page 1 of the cumulative probabilities for the standard normal distribution.Click here to view page 2 of the cumulative probabilities for the standard normal distribution.a) The p-value is(Round to four decimal places as needed.)

Answered: Calculate the p-value for the following…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The population mean and standard deviation of a normally distributed random variable is 3.5 and 2.12 respectively. Find the z score for x = 4.1? Round answer to 2 decimals
Given a normal probability distribution with a mean of 8% and a standard deviation of 4%, what is the probability of observing a value between 2% and 14%? Use the following Z-score data is from the HP calculator: Z-Score -2.00 -1.75 -1.50 -1.25 -1.00 0.00 1.00 1.25 1.50 1.75 2.00 Probability 0.0228 0.0401 0.0668 0.1056 0.1587 0.5000 0.8413 0.8944 0.9332 0.9599 0.9772 Answer in decimal format, to 3 decimal places, truncated. For example, if your answer is 33.46%, enter 0.334.
In a log normal distribution. What is the expected value of the mean and the Std. And what is the variance
Suppose the random variable Z follows a standard normal distribution (the tabled curve). Find the chance Z is greater than 1.26. P(Z > 1.26) = Use 4 decimal places.
The mean score on a driving exam for a group of driver’s education students is 76 points, with a standard deviation of 6 points. Apply chebychev’s theorem to the data using K=2. Interpret, At least ___% of the exam score falls between ___and ____
The average cost per household of owning a brand new car is $5,500. Suppose that we randomly selected 45 households, determine the probability that the sample mean for these 45 households is between $5,250 and 6,000. Assume that the variable is normally distributed and the standard deviation is $1,550. SD of the sample mean (input 4 decimal places)= type your answer... type your answer... z-scores (input 2 decimal places) type your answer... Final answer/Probability (input 2 decimal places type your answer... %
Weight of goods shipped in containers of a certain size is a normally distributed random variable. It is known that 78% of the containers have a net weight above 4.3 tons, and 83% of the containers have net weight below 5.9 tons. Find the mean and standard deviation of the net weight of the containers.
An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots weighing between 140 lb and 191 lb. The new population of pilots has normally distributed weights with a mean of 147 lb and a standard deviation of 28.7 lb. Click here to view page 1 of the standard normal distribution Click here to view page 2 of the standard normal distribution. COS a. If a pilot is randomly selected, find the probability that his weight is between 140 lb and 191 lb. The probability is approximately (Round to four decimal places as needed.) b. If 38 different pilots are randy selected, find the probability that their mean weight is between 140 lb and 191 lb. The probability is approximately (Round to four decimal places as needed.) c. When redesigning the ejection seat, which probability is more relevant? A. Part (b) because the seat performance for a sample of pilots is more important. OB. Part (a) because the seat performance for a single pilot is more important. OC.…
Given a normal probability distribution with a mean of 9% and a standard deviation of 4%, what is the probability of observing a value between 2% and 14%? Use the following Z-score data is from the HP calculator: Z-Score -2.00 -1.75 -1.50 -1.25 -1.00 0.00 1.00 1.25 1.50 1.75 2.00 Probability 0.0228 0.0401 0.0668 0.1056 0.1587 0.5000 0.8413 0.8944 0.9332 0.9599 0.9772 Answer in decimal format, to 3 decimal places, truncated. For example, if your answer is 33.46%, enter 0.334.
Use the z formula and the normal table( z distribution) to solve the following problems. the time it takes a person to lose weight following a healthy diet with regular exercise may be looked upon as a random variable having a normal distribution with mean μ = 18.4 lbs per month and standard deviation σ = 5.8 lbs per month. Find the probabilities that during a period of healthy dieting and exercising a person's weight will be reduced by at least 20 lbs per month,between 5 and 15 lbs per month,at most 30 lbs per month and between 15 and 25 lbs per month?
Jarþrúður, a geologist is working with the random variable Z that follows the standard normal distribution. What is the value of z if P (Z> z) = 0.0968?
I. NORMAL PROBABILITY DISTRIBUTION Cars are passing through a checkpoint. Assume the speeds are normally distributed such that the mean (u) = 61 mph and the standard deviation (sigma) = 4 mph. а. b. Calculate the probability (area under the curve) that the next car to pass will be travelling more than 58 mph.

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