plate is attached to its base by 6 bolts. Each bolt is inspected before installation, and theprobability of passing the inspection is 0.9. Only bolts that pass the inspection are installed.Let X denote the number of bolts that are inspected in order to attach one plate. Find theprobability that less than 7 bolts need to be inspected in order to attach the plate. Roundanswer to four decimal places.distribution can be used here with parametersr =6 and p =The requested probability is

Step 1:whenprobability of success p remain constant throughout the experiment All trials are…

Answered: plate is attached to its base by 6…

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter4: Polynomial And Rational Functions

Section4.6: Rational Functions

Problem 11SC: Find the mean hourly cost when the cell phone described above is used for 240 minutes.

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The amount of time a service technician needs to change the oil in a car is uniformly distributed between 11 and 21 minutes. Let X = the time needed to change the oil on a car. b. Graph the distribution and find P (x > 19). Round to the nearest tenth.
The average American gets a haircut every 34 days. Is the average different for college students? The data below shows the results of a survey of 16 college students asking them how many days elapse between haircuts. Assume that the distribution of the population is normal. 40, 41, 34, 36, 30, 43, 44, 28, 42, 47, 27, 44, 37, 36, 38, 36 What can be concluded at the the a = 0.01 level of significance level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: Select an answer ? H1: ? Select an answer c. The test statistic | ? (please show your answer to 3 decimal places.) d. The p-value (Please show your answer to 3 decimal places.) e. The p-value is (? f. Based on this, we should | Select an answer the null hypothesis. g. Thus, the final conclusion is that ... | The data suggest the populaton mean is significantly different from 34 at a = 0.01, so there is sufficient evidence to conclude that the population mean number of…
The probability that ticket A will rise in price is 0.54 while the probability that the ticket B will rise in price is 0.59. The probability of both tickets rising in price is 0.44. A= ticket A will rise in priceB= ticket B will rise in price Report numeric answers to 2 decimal places. Do not convert to percent. c. at least one ticket will rise in price? d. both tickets will not rise in price? e. only one ticket will rise in price (not both)? f. no more than one ticket will rise in price?
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The average American gets a haircut every 39 days. Do college students get their hair cut less frequently? The data below shows the results of a survey of college students asking them how many days elapse between haircuts. Assume that the distribution of the population is normal. 40, 43, 57, 60, 39, 35, 51, 23, 30, 43, 56, 48, 36, 31, 44, 50, 60 What can be concluded at the 0.05 level of significance? Helpful Videos:CalculationsLinks to an external site., Set-upLinks to an external site., InterpretationsLinks to an external site. HintLinks to an external site. Textbook PagesLinks to an external site. H0: mu.gif = 39 Ha: mu.gif [ Select ] 39 Test statistic: [ Select ] p-Value = [ Select ] [ Select ] Conclusion: There is sufficient evidence to make the conclusion that the population mean number of days between haircuts for college students is more than 39.
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The histogram to the right shows the times between eruptions of a geyser for a sample of 300 eruptions (which means 299 times between eruptions). Over the histogram, draw a smooth curve that captures its general features. Describe the distribution in terms of its number of modes, its symmetry or skewness, and its variation. Chose the correct answer below. Frequency 60- 40 20- OA. three modes, symmetric, wide variation. B. one mode, symmetric, low variation C. two modes, left-skewed, wide variation. OD. one mode, right-skewed, moderate variation 0- 50 60 70 80 90 100110 4 ہے Q Q Q

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