Based on the current sample the standard deviation is equal

Assignment Help Basic Statistics
Reference no: EM13632961

In an examination of holiday spending (known to be normally distributed) of a sample of 16 holiday shoppers at a local mall, an average of $54 was spent per hour of shopping. Based on the current sample, the standard deviation is equal to $21. Find a 90% confidence interval for the population mean level of spending per hour.

Reference no: EM13632961

Questions Cloud

In 1996 physicists created an anti-atom of hydrogen in such : in 1996 physicists created an anti-atom of hydrogen. in such an atom which is the antimatter equivalent of an ordinary
When balancing redox reactions that occur in : 1. bleaches act on stains bya. removing electrons during the oxidation process.b. reducing the colored compound by
A fire hose exerts a force on the person holding it this is : a fire hose exerts a force on the person holding it. this is because the water accelerates as it goes from the hose
Using a cold air-standard analysis with specific heat : consider an ideal gas refrigerator using air acting between 1 and 3 bar pressure. assume that the temperature at the
Based on the current sample the standard deviation is equal : in an examination of holiday spending known to be normally distributed of a sample of 16 holiday shoppers at a local
If the universe is approximated as an ideal blackbody : the nobel prize was given to penzias and wilson in 1978 for their observation of the cosmic background radiation the
The coach takes a random sample of 43 players and finds the : a basketball coach wants to know how many free throws an nba player shoots during the course of an average practice.
Assume that the condenser exit is liquid whose temperature : a kansas farmer heats his house with a heat pump using r134a generating a temperature of 50 deg c at the exit of the
A compounds analyzes to be 617 cl 2672 p and 1211 n 12952 g : a compounds analyzes to be 61.7 cl 26.72 p and 12.11 n. 1.2952 g of the compound was dissolved in 15.00 ml of benzene

Reviews

Write a Review

Basic Statistics Questions & Answers

  Let xn denote the proportion of items at time n that are

at time 0 a box contains one pen and one pencil. at each time n after a item is chosen at random from the box and put

  Suppose the evaluation model showed that for a particular

performance analysis corporationchapel hill north carolinaperformance analysis corporation founded in 1979 is a

  Decorating and christmas enjoyment

Calculate the correlation between decorating and Christmas enjoyment - Maximize Wayne's studying effectiveness.

  Sensitivity of minimum sample size to actual proportion

Inspect table produced in question 2 above. Comment on relative sensitivity of minimum sample size to actual proportion and to desired half width.

  A criminal psychologist wants to examine the level of narcis

3. (SPSS) A criminal psychologist wants to examine the level of narcissistic personality traits between those who are diagnosed with antisocial personality disorder (ASPD) and those who do not qualify for ASPD. She administers a measure of nar..

  Explain audience why r points to conclusion

We conclude that memory of food intake in the distant past is fair to poor." Explain to your audience why r=0.217 points to this conclusion.

  Test null hypothesis of telephone survey technique

Test the null hypothesis that the telephone survey technique has a probability of selecting a household with no children that is equal to the value obtained by the census.

  The dependent t-test for paired samples

Ace Jack had no idea whether the $100,000 he pays for training for his used car salespeople works.

  Information of chi square test for goodness of fit

A group of department store buyers viewed a new line of dresses and gave their opinions of them. The results are below: Because the largest number (47) indicated the new line is outstanding, the head designer thinks that this is a mandate to go in..

  Conclude that cream will improve skin of more women

Do the data provide sufficient evidence to conclude that the cream will improve the skin of more than 50% of women? Test using α=0.05 and the p-value method.

  Determining the hypothesis testing by using anova

Scrap rates per thousand (parts whose defects cannot be reworked) are compared for 5 randomly selected days at three plants. Does the data prove a significant difference in mean scrap rates?

  Mean score and standard deviation

In the history class the mean score was 76 with standard deviation 3.

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