The lifetime of a certain type of battery is normally distributed with mean value 11 hours and standard deviation 1 hour. There are nine batteries in a package. What lifetime value (in hours) is such that the total lifetime of all batteries in a package exceeds that value for only 5% of all packages? (Round your answer to two decimal places.)

Q: Given a set of data that is skewed-left, there is at least _____ % of the data within 3 standard…

A: From the given information, Consider, As it has been given that data is left skewed as a result one…

Q: In order to determine whether or not there is a significant difference between the hourly wages of…

A: It is required to find the p-value for the given hypothesis test.

Q: Calculate the sample standard deviation for this data set: 65, 48, 70. The formula for the sample…

A:

Q: Create a frequency table for your new variable “How many caffeine drinks per day” using the…

A: No. of drinks Frequency Relative Frequency Cumulative Freq. Cumulative rel. freq. 0-1 27…

Q: In a student survey, sixty part-time students were asked how many courses they were taking this…

A: Solution: From the given information, total number of part-time students is 60.

Q: Fill in the missing values in the table. Round your responses for the expected frequencies to two or…

A: To fill the missing  values.

Q: 190 people are asked how many siblings they have, and the results are shown below: # of Siblings…

A: The objective of the question is to complete the table with the given data and to find out the…

Q: Calculate the standard deviation sales per store using this population data 91, 53, 71, 4, 30, 16

A: We have given that the population data: 91, 53, 71, 4, 30, 16.

Q: In a student survey, fifty-two part-time students were asked how many courses they were taking this…

A: Total number of part time students, N = 52 The frequency of student take the course 1 is,

Q: 230 people are asked how many siblings they have? # of Siblings Frequency Relative Frequency…

A: Frequency = 230 - (Sum of others)

Q: The scores and their percent of the final grade for a statistics student are given. What is the…

A:

Q: Calculate ¯x (x-bar) (i.e. mean) for the data shown, to two decimal places x 17.7 15.9 14.5 6.5 27…

A: Given 17.7 15.9 14.5 6.5 27 5.7 27.7 3.8

Q: standard deviation of 90 pounds. The company believes that, due to an improvement in the…

A: According to the given information in this question, there are more than three subparts according to…

Q: Calculate the Arithmetic Mean and apply Charlier's check to test accuracy of your calculations: Age…

A:

Q: O a bar chart

A: A bar Chart plots levels of a categorical feature as bars. A box Plot considers numeric data as they…

Q: The correlation between a cereal's fiber and potassium contents is r=0.909. What fraction of the…

A: Correlation coefficient(r)=0.909

Q: The student's weighted mean score is (Simplify your answer. Round to two decimal places as needed.)

A: Given that  x Weighted (w) w*x 88 35 3080 89 5 445 90 10 900 91 5 455 99 45 4455…

Q: In a student survey, forty-one part-time students were asked how many courses they were taking this…

A: The total number of students considered in survey is 41. There are three categories of students,…

Q: 220 people are asked how many siblings they have? # of Siblings Frequency Relative Frequency…

A: a) According to the provided information, the total number of samples (people) is 220. So, frequency…

Q: Show your handwritten work on the paper. In California, we need more rain to sustain the health of…

A:

Q: In a student survey, fifty-two part-time students were asked how many courses they were taking this…

A: The number of values corresponding to a class or observation is defined as the frequency of that…

Q: In a student survey, forty-one part-time students were asked how many courses they were taking this…

A: # of coursesFrequencyRelative frequencyCumulative frequency1a0.1707c221b283130.317141Complete table…

Q: In a student survey, forty-one part-time students were asked how many courses they were taking this…

A: The provided information is given as follows: # of courses Frequency Relative frequency…

Q: onsider the following data: - 4 - 3 - 2 - 1 P(X = x) 0.2 0.1 0.2 0.1 0.4 Step 4 of 5: Find the value…

A:

Q: The student's weighted mean score is (Simplify your answer. Round to two decimal places as needed.)

A:

Q: n a student survey, fifty-two part-time students were asked how many courses they were taking this…

A: Answer is given below:

Q: In a student survey, forty-one part-time students were asked how many courses they were taking this…

A: given data sample size (n) = 41 # of courses frequency relative frequency cumulative frequency…

Q: The proportion p of residents in a community who recycle has traditionally been 60%. A policy maker…

A: Givensample size(n)=225x=116sample proportion(p^)=xn=116225≅0.5156significance level(α)=0.01

Q: For a sample of 12 offenders convicted of weapons violations the length of prison sentence is months…

A: The sorted values are 2, 6, 6, 12, 15, 18, 20, 24, 24, 36, 48, 60.   The no. of data value are,…

Q: In a student survey, forty-one part-time students were asked how many courses they were taking this…

A: 41 part time students were asked how many courses they were taking this term. So, total number of…