Mathematics, 01.10.2019 01:30 jadielmatmat
The average expenditure on valentine’s day was expected to be $100.89 (usa today, february 13, 2006). do male and female consumers differ in the amounts they spend? the average expenditure in a sample survey of 40 male consumers was $135.67, and theaverage expenditure in a sample survey of 30 female consumers was $68.64. based on pastsurveys, the standard deviation for male consumers is assumed to be $35, and the standarddeviation for female consumers is assumed to be $20.a. what is the point estimate of the difference between the population mean expenditurefor males and the population mean expenditure for females? b. at 99% confidence, what is the margin of error? c. develop a 99% confidence interval for the difference between the two population means.
Answers: 2
Mathematics, 20.06.2019 18:04
When benny’s sister penny is 24, benny’s age will be 125% of her age. how old is lenny? a) how old will benny be then? b)if benny is 12 years old now, how old is penny now? explain your reasoning.
Answers: 1
Mathematics, 21.06.2019 15:00
Idon’t understand this.. will someone ? will mark brainliest along with 20 points.
Answers: 1
Mathematics, 21.06.2019 19:30
Explain how you can find the missing fraction in 3 4/5 / (blank) 2 5/7. then find the missing fraction.
Answers: 2
The average expenditure on valentine’s day was expected to be $100.89 (usa today, february 13, 2006)...
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