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1) P(X>250) = answer should be 5 decimal places using NORMALCDF.
2) P(250<x<350) = answer should be 5 decimal places. using NORMALCDF
3) Given the "bottom 5% what is the value of x must take 2 decimal places?
1. The owner of a ?eet of taxi cabs wants to determine if there is a difference in the lifetime of two different brands of car batteries used in the ?eet of cabs. State the appropriate null and alternative hypotheses.
Of the 880 respondents, 171 admitted that at least one light had been red. Follow the four-step process to construct a 95% confidence interval.
Give an example of a function using a set of at least 4 ordered pairs. The domain will be any four integers between 0 and +10. The range will be any four integers between -12 and 5.
The password of 52 digit sequence is made. It consists of 0 and 1. How various different possibilities exist for networks password.
Explain why you cannot determine the probability that a largemouth bass randomly selected ( caught ) from the lake weighs over 3 pounds.
Use the file Math SAT to compute the linear regression equation to predict the average math SAT score using the gender and the average verbal SAT score.
A researcher wants to estimate the average weight loss obtained by patients at a residential weight-loss clinic during the first week of a controlled diet and exercise regimen. How large a sample is needed to estimate this mean to within 0.5 lb wi..
Find a 99% confidence interval for the population mean number of weekly miles.
at a large department store the average number of years of employment for a cashier is 5.7 with a standard deviation
a real estate agent has appointments with eight prospective clients. from past experience the agent knows that the
Confidence intervals, again. Several factors are involved in the creation of a confidence interval. Among them are the sample size, the level of confidence, and the margin of error. Which statements are true?
The body temperatures of n = 130 healthy adults were measured (half male and half female). The average temperature from the sample was found to be = 98.249 with standard deviation s = 0.7332.
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