What would be the null and alternative hypotheses

Assignment Help Basic Statistics
Reference no: EM132495770

You wish to see if a new blood pressure medication improves average blood pressure by more than 22.4 points, which is the average improvement on an old medication. Eighteen randomly selected people were given the medication, and their improvements were as follows:

25 27 18 20 29 15 31 33 15 25 26 15 23 29 21 16 29 19

A. What would be the null and alternative hypotheses?

B. What is the test statistic?

C. What is the p-value?

D. What is your conclusion and statement? Use a significance level of .05.

Reference no: EM132495770

Questions Cloud

Calculate the confidence intervals for µ : Use the sample information x¯x¯ = 43, s = 3, n = 11 to calculate the following confidence intervals for µ assuming the sample is from a normal
Significant value for the independent-measures : Assuming that there is a 5-point difference between two sample means, which set of sample characteristics is most likely to produce a significant value
Calculate the correlation coefficient : Assuming a linear relationship, calculate the correlation coefficient. Interpret the value of the coefficient of determination in relation to this situation.
State the null and alternative hypotheses-test statistic : A doctor claims that more than 75% of his patients are retired and on social security. A random sample of 52 patients revealed that 41 of them fit
What would be the null and alternative hypotheses : A. What would be the null and alternative hypotheses? B. What is the test statistic? C. What is the p-value?
Describe the sampling distribution of x overbar : Suppose a simple random sample of size n=81 is obtained from a population that is skewed right with mu equals 77 and sigma equals 9.
What are the test statistic and p-value : The average IQ for all people is 100 with a standard deviation of 15. You believe the students at your school have a higher average IQ than the general
Analyze each transaction : Purchased inventory on account for $235,000. Analyze each transaction and show the effect of each on the accounting equation for a corporation
What is Ameens net income : On January 1, 2013, Ameen Company purchased a building for $36 million. What is Ameen's 2018 net income

Reviews

Write a Review

Basic Statistics Questions & Answers

  Manager of the quality hardware store

Kris Lee, the owner and manager of the Quality Hardware Store, is reassessing his inventory policy for hammers.

  Calculate the posterior probabilities

Prior to enlisting Lathum's services, you have assessed the probability of the GNP growing, holding steady, and declining at 0.3, 0.45, and 0.25, respectively.

  Assume that the standard deviation is 1500 and the variable

If the average price of a new home is 145,000 what is the minimum and maximum prices of the houses a contractor will need to build to include the middle 80% of the market.

  In a study on the health and development of a bird species

question in a study on the health and development of a bird species yellow robin two different sites were compared

  Show a random sample of households with tv sets

A television rating agency produces the ratings of television shows by asking a random sample of about 5000 households with TV sets what shows they watch.

  Developing a linear regression model using the given data

Develop a linear regression model for these data and forecast carpet sales if 30 construction permits for new homes are filed.

  Describe reasons for blocking and for randomization

Students are sometimes confused by the reasons for blocking and for randomization. One method is used to control known sources of variability.

  What size sample will be needed to construct a 95

what size sample will be needed to construct a 95 confidence interval on a ballot issue if the estimate must be plusmn

  Controversial issue in southeast asia

1. What geographical and historical factors have led Singapore to develop such a particular, and highly valued, local form of the English language? 2. Why are the tiny Spratly Islands such a controversial issue in Southeast Asia?

  Mean and standard deviation for the observations

Use your calculator to find the mean and standard deviation for the 9 observations that remain when you leave out the outlier. How does the outlier affect the values of x and s? Is s a resistant measure of spread?

  Expected price per share of the company in one year

Julia's Jewel Company (JJC) currently has a stock price of $51 per share. If JJC's cost of equity capital (same as discount rate for equity) is 19%

  How many donors must be checked with type ab blood

On average, how many donors must be checked to find someone with Type AB blood? What's the probability that there is a Type AB donor among the first 5 people.

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