At a restaurant the time between two consecutive to-go orders is
exponentially distributed with a rate of λ = 0.05/min.
Answer the following questions - round to 3 significant digits
after decimal.
At a restaurant the time between two consecutive to-go orders is exponentially distributed with a rate...
The president of Doerman Distributors, Inc., believes that 30% of the firm's orders come from first-time customers. A simpl random sample of 100 orders will be used to estimate the proportion of first-time customers. Use z-table. a. Assume that the president is correct and p = 0.3. What is the sampling distribution of p for this study? Select your answer - b.What is the probability that the sample proportion will be between 20 and .40 (to 4 decimals)? c. What...
The president of Doerman Distributors, Inc., believes that 31% of the firm's orders come from first-time customers. A simple random sample of 100 orders will be used to estimate the proportion of first-time customers. User-table a. Assume that the president is correct and p = 0.31. What is the sampling distribution of p for this study Select b. What is the probability that the sample proportion will be between .22 and 40 (to 4 decimals)? c. What is the probability...
PART 2: Which test-statistic, z, t, or neither? A candy factory that produces chocolate bars claims each bar weighs 50 grams, at least that is what is printed on the label. Of course, there is bound to be a little variation. An inspector randomly chooses 9 bars from one day's output of 4000 bars. The average weight of the 9 bars is only 47 grams with an SD of 3 grams. The inspector wishes to test the null hypothesis that...
You may need to use the appropriate appendix table or technology to answer this question The president of Doerman Distributors, Inc., believes that 35% of the firm's orders come from first-time customers. A random sample of 200 orders will be used to estimate the proportion of first-time customers. (a) Assume that the president is correct and p 0.35. What is the sampling distribution of p for n 200? (Round your answer for o to four decimal places.) , approximating the...
t a computer manufacturing company, the actual size of computer chips is normally distributed with a mean of 10 centimeter and a standard deviation of 2.1 centimeter. A random sample of 24 computer chips is taken. What is the probability that the sample 2. A mean will be between 10.95 and 11.05 centimeters? The personnel director of a large corporation wants to study absenteeism among clerical workers at the corporation's central office during the year. A random sample of 25...
nswer the following TWO questions uestion (1) (30 Marks A) (5 Marks) The time required to build a computer is normally distributed with a mean of 50 minutes and a standard deviation of 10 minutes. What is the probability that a computer is assembled in a time between 45 and 60 minutes? B) (5 Marks) It was noted that the amount of oil in each "32-ounce" bottle is actually a normally distributed random variable, with a mean of 32.2 ounces...
Question 12 pts The length of time a person takes to decide which shoes to purchase is normally distributed with a mean of 8.21 minutes and a standard deviation of 1.90. Find the probability that a randomly selected individual will take less than 6 minutes to select a shoe purchase. Is this outcome unusual? Group of answer choices Probability is 0.88, which is usual as it is greater than 5% Probability is 0.12, which is usual as it is not...
Question 11 A manufacturer knows that their items have a normally distributed length, with a mean of 15.6 inches, and standard deviation of 4.7 inches. If 23 items are chosen at random, what is the probability that their mean length is less than 18.1 inches? Pa < 18.1) = Submit Question Question 12 BO A manufacturer knows that their items have a normally distributed lifespan, with a mean of 9.3 years, and standard deviation of 2.7 years. If you randomly...
part 3,4 and 5 please! Rate is defined as the change in S205 over time. Once the blue color appears, we assume (SOS)-OM, so we have: Initial rate of reaction = "18705) (0-[S,Os initial) (5,05 initial Below are your data for trials 1-6 of Lab 7. Enter the initial rate for each trial. [S205 initial Time Initial rate 2.8x10-5 M/S Trial 1 .00090 M 32 s Ok 6.9x105 M/s Trial 2 .00090 M 13 S Ok 5.2x10-5 M/s Trial 3...
Please do all questions... A cell phone battery manufacturer claims that one of their batteries for a particular cell phone will outperform a competitor's equivalent brand. To establish this claim, a researcher selected samples of the two brands of batteries and perform accelerated tests on them in the lab under identical conditions. A random sample of 55 of the manufacturer's battery was selected and placed on test. A corresponding random sample of 55 of the competitor's battery was also put...