What is roberta associated z score

Assignment Help Basic Statistics
Reference no: EM1392028

Roberta scored in the 85th percentile on a standardized test of reading ability. What is Roberta's associated z score?

Reference no: EM1392028

Questions Cloud

Find surface area and volume : Determine the Surface Area (cm sq) and volume (cm cu) of the following three cubes.
Develop a decision tree for the case of a company : Develop a decision tree for the case of a company operating at full capacity and with product demand rising. The choice is between new equipment and overtime.
Machine breakdown and repair in a twelve machine factory : Machine breakdown and repair in a twelve machine factory having three repair mechanics would develop which type of queuing system line structure concerning machine breakdowns?
Biological macromolecule : Determine which biological macromolecule is not really a polymer and Which statement about biological polymers and their precursors below is TRUE?
What is roberta associated z score : Roberta scored in the 85th percentile on a standardized test of reading ability. What is Roberta's associated z score?
Prepare agar blocks stained with an acid indicator : When you prepare agar blocks stained with an acid indicator place various size/shape blocks into a beaker of vinegar and examine the effect of surface volume to area ratios on the diffusion of vinegar to the block.
Approximate value of the sample proportion : Determine the sample size necessary to estimate a population proportion to within .03 with 90% confidence assuming you have no knowledge of the approximate value of the sample proportion.
Example for the exponential distribution : In the Arnold's Muffler example for the exponential distribution, the average rate of service was given as 3 per hour, and the times were ex-pressed in hours.
Explain statistical presentation-substitute ways data used : Research the layout of one of the written reports. Select one statistical presentation (from article or study report) and find out substitute ways data used in that article.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Decision about the null hypothesis

What is your null hypothesis? What is your alternative hypothesis? What your decision about the null hypothesis?

  Would a better economy lead you to switch jobs

If a worker is chosen at random, what is the probability that he or she.Is very improbable to switch jobs. Is somewhat likely or very likely to switch jobs.

  Difference between histogram and dot plot

Critically illustrate out the difference between a histogram and a dot plot. When might a dot plot be better than a histogram?

  Evaluating the proportion within confidence

How many voters required to be sampled to evaluate the proportion within 0.05 with 95% confidence?

  Determining sample space of tossing a fair coin

Set up probability distribution by illustrating all x values and their associated probabilities. List sample space of tossing a fair coin.

  Probability of two shoppers entering together

What is the probability that the device will detect at least one of the two shoppers entering together?

  Confidence interval for single mean

Using the confidence interval when conducting a two-tail test for the population mean we do not reject the null hypothesis if the hypothesized value for:

  Assumption of chi square distribution

In order not to violate the requirements necessary to use the chi-square distribution, each expected frequency in a goodness of fit test must be:

  Managerial decision making-cvp analysis

A distributor of pre-washed shredded lettuce is opening a new plant and considering whether to use mechanized process or manual process to prepare the product.

  Computing predictive value positive using table

Using a separate 2 by 2 table, compute predictive value positive and predictive value negative for population of 1,000 drug users.

  Descriptive statistics for original-transformed variables

Using the menu systems, request descriptive statistics (mean, s.d. and variance) for both your original variables

  Determining confidence interval for mean amount spent

Determine a 95% confidence interval for mean amount spent by all Internet shoppers.

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