Suppose x is a normal random variable

Assignment Help Basic Statistics
Reference no: EM132137029

Suppose X is a normal random variable with mean μ = 54 and standard deviation σ =8.? Compute P(X > 42). (Round to four decimal places.)

Reference no: EM132137029

Questions Cloud

Height in inches verses? centimeters : Suppose you want to calculate the? z-score for your height. How will the? z-scores compare if you use your height in inches verses? centimeters?
See two values per comparison : On a correlation matrix, you will usually see two values per comparison. The top value for a correlation measurement will be the Pearson correlation
What is the probability that both david and valerie : a. What is the probability that both David and Valerie get picked for the Tahitian dance lesson?
Expand and construct the table adding columns : 1. Consider the following data on distances traveled by 60 people to visit the local amusement park.
Suppose x is a normal random variable : Suppose X is a normal random variable with mean µ = 54 and standard deviation s =8.? Compute P(X > 42). (Round to four decimal places.)
Binomial random variable : If x is a binomial random variable where n = 100 and p = 0.2, find the probability that x is less than or equal to 15 using the normal approximation
What is the relative risk of a heart attack : a) How much lower is the risk of a heart attack for those who took aspirin in the study? b) What is the relative risk of a heart attack?
What would be the diagnostically meaningful cutoff : If the mean score is 150 with a standard deviation of 30, what would be the diagnostically meaningful cutoff?
What is the probability that the combined weight : a. What is the probability that the combined weight of 100 randomly selected cars will exceed the maximum weight? How is this performed in R?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Determine and interpret the p-value for the test

Determine and interpret the p-value for the test. Source: Bureau  of the Census,  Statistical  Abstract  of the United  States  2009,  p. 163.

  Upper and lower limits of the first class

Use this information to find the upper and lower limits of the first class if you wish to construct a frequency distribution with 10 classes.

  T-test and independent samples

The sample information is reported below. At the .10 significance level can we conclude that there is a difference in the amounts quoted?

  Explain conclusion as type one error or type two error

Suppose that the null hypothesis is rejected and that an alternate hypothesis is accepted. Discuss the conclusion as a type I error, a type II error, or a correct decision-if in fact the defendant is innocent.

  Calculate the weights of all the animals

Cattle. The Virginia Cooperative Extension reports that the mean weight of yearling Angus steers is 1152 pounds. Suppose that weights of all such animals.

  Draw a bar chart to portray the survey results

Draw a bar chart to portray the survey results. Draw a pie chart for the survey results. If you are preparing to present the results to Ms. Damonte as part of a report, which graph would you prefer to show? Why?

  Question-z test for proportion

What is the margin of error of the large-sample 95% confidence interval for the proportion of all Quebec adults who would allow doctor assisted suicide?

  Equivalence relations-equivalence classes

a^2 + b^2=c^2 + d^2 where a,b,c,d are real numbers(describe equivalence cl). For a pair of fractions a/b and c/d define a/b ~ c/d if ab=cd(same here)

  Denzel washington logic

What is wrong with Denzel Washington's logic (give the answer in both z scores and percentile ranks).

  Do prices appear to be the same in the four markets

Do prices appear to be the same in the four markets? Explain.- Does the presence of any outliers affect your overall conclusions about prices in the four markets?

  What is the standard deviation of the amount deducted

What is the mean amount deducted from the total purchase amount? What is the standard deviation of the amount deducted from the total purchase?

  Do results support researcher-s theory by hypothesis testing

Using the .05 level, do the results support the researcher's theory? (a) Use the steps of hypothesis testing, (b) sketch the distributions involved.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd