A pit crew claims that its mean pit stop time (for 4 new tires and fuel) during an auto race is different than 13 seconds. A random sample of 40 pit stop times has a sample mean of 12.9 seconds and a population standard deviation of 0.3 second. Let α = 1%. a) The parameter of interest is ["", "", "", ""] population of pit crwe, propotion of pit crew in auto races, population mean pit stop time, population auto races b) The null hypothesis : is ["", "", "", ""] and the alternative hypothesis : c) The observed value is ["", "", "", ""] .
A pit crew claims that its mean pit stop time (for 4 new tires and fuel) during an auto race is different than 13 seconds. A random sample of 40 pit stop times has a sample mean of 12.9 seconds and a population standard deviation of 0.3 second. Let α = 1%.
a) The parameter of interest is ["", "", "", ""] population of pit crwe, propotion of pit crew in auto races, population mean pit stop time, population auto races
b) The null hypothesis : is ["", "", "", ""] and the alternative hypothesis :
c) The observed value is ["", "", "", ""] .
d) The researcher can reject the null for < ["", "", "", ""] and > ["", "", "", ""] .
e) type I error ["", "", "", ""]
f) The probability of observing a value more extreme than already observed in the direction of the alternative is ["", "", "", ""]
g) Result: ["", "", "", ""]
A pit crew claims that its mean pit stop time (for 4 new tires and fuel) during an auto race is different than 13 seconds. A random sample of 40 pit stop times has a sample mean of 12.9 seconds and a population standard deviation of 0.3 second. Let α = 1%.
a) The parameter of interest is ["", "", "", ""]
b) The null hypothesis : is ["", "", "", ""] and the alternative hypothesis :
c) The observed value is ["", "", "", ""] .
d) The researcher can reject the null for < ["", "", "", ""] and > ["", "", "", ""] .
e) type I error ["", "", "", ""]
f) The probability of observing a value more extreme than already observed in the direction of the alternative is ["", "", "", ""]
g) Result: ["", "", "", ""] choices:
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