Determine the expected number of repairs per year

Assignment Help Basic Statistics
Reference no: EM13113591

A fast food restaurant just leased a new freezer and food fryer for three years. The service contract for the freezer offers unlimited repairs for a fee of $125 a year plus a $35 service charge for each repair needed. The restaurant's research indicates that during a given year 80% of these freezers need no repairs, 11% needed to be serviced once, 5% twice, 4% three times, and none required more than three repairs. what are the expected no of repairs per year

Reference no: EM13113591

Questions Cloud

Is there evidence to reject manager-s claim at alpha : Sstandard deviation was found to be 3.3 minutes. Is there evidence to reject the manager's claim at alpha =.02? Perform an appropriate hypothesis test.
Level of significance for tallest buildings : The heights, in feet, of the five tallest buildings in four large cities are compared. What is the critical value if the level of significance is 0.10?
By how much would the pressure change : At 0°C, the volume coefficient of expansion of mercury is α = 18×10-5 K-1, and its coefficient of compressibility is β = 5.32×10-6 bar-1.
Information about critical values : Find the left and right critical values from the appropriate table for a 95% confidence interval for the mean when the sample size is 23.
Determine the expected number of repairs per year : 11% needed to be serviced once, 5% twice, 4% three times, and none required more than three repairs. what are the expected no of repairs per year.
Describ effect of increasing size of sample-margin of error : Statisticians prefer large samples. Describe briefly the effect of increasing the size of a sample on each of the following: The margin of error of a 95% confidence interval?
What is its final temperature : A lead fishing weight with a mass of 68 g absorbs 146 cal of heat. If its initial temperature is 56°C, what is its final temperature.
Select one of your graphs and assume : Select one of your graphs and assume it has been shifted three units upward and four units to the left. Discuss how this transformation affects the equation by rewriting the equation to incorporate those numbers.
What is the molarity of the solution : If 1.50 g of (NH4)2SO4 is dissolved in enough water to form 200. mL of solution, what is the molarity of the solution.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Relationship between political attitudes and income

A researcher studies the relationship between political attitudes and income. He/she finds that those with higher income are more conservative.

  Repeated independent trials

If there are repeated independent trials and there are only two outcomes, what distribution should be used?

  Problem related to the selection of colorblind person

Assume that 5% of men and only .25% of women are colorblind. A colorblind person is chosen at random:

  Evaluate confidence intervals

A Variable has a mean of 100 and a standard deviation of 16. Four observations of this variable have a mean of 108 and a sample standard deviation of 12. Test whether the sample has been drawn from the population.

  Binomial distribution for quality control data

The quality control process at a manufacturing plant requires that each lot of finished units be sampled for defective items. Twenty units from each lot are inspected.

  Information about anova and regression

At the end of class, our teacher said "If you're perceptive, you may have noticed that a regression analysis produced by the Excel Data Analysis ToolPak contains an ANOVA table.

  Information about quantitative methods

The following data represents 15 quarters of manufacturing capacity utilization (in percentages) Evaluate three and four quarter moving average for this time series. Which moving average provides the better forecast for the fourth quarter of 2003?

  Determine difference in two amounts using alpha

Marketing firm asked the random set of married and single men as to how much they were eager to spend for vacation. At  alpha= .05, is a difference in two amounts?

  Mean hypothesis test on a random sample of data

You perform a one sample mean hypothesis test on a random sample of data and observe a p-value of 0.2157. What is the appropriate conclusion? Conclude at the 5% level of significance.

  Writing scores forming a normal distribution

The average score for the sample is M = 76. For the general population of college students, writing scores form a normal distribution with a mean of µ = 70.

  Information about exponential smoothing forecast

Given the following data, use exponential smoothing with a=0.2 and a=0.5 to generate forecasts for periods 2 through 6. Use MAD and MSE to decide which of the two models produced a better forecast.

  Determine the standard deviation of sampling distribution

What is the standard deviation of the sampling distribution of p(hat) the proportion of all rolls of the die that show a 1 or a 2? 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